Upgrade to version 4.0.

Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>

.github/FUNDING.yml

@@ -0,0 +1,4 @@
+# These are supported funding model platforms
+
+github: polhenarejos
+custom: ["https://www.paypal.me/polhenarejos"]

.github/workflows/codeql.yml

@@ -13,12 +13,13 @@ name: "CodeQL"
 
 on:
   push:
-    branches: [ "master" ]
+    branches: [ "master", "development", "development-eddsa" ]
   pull_request:
     # The branches below must be a subset of the branches above
-    branches: [ "master" ]
+    branches: [ "master", "development", "development-eddsa" ]
   schedule:
     - cron: '23 5 * * 4'
+  workflow_dispatch:
 
 jobs:
   analyze:
@@ -35,6 +36,7 @@ jobs:
         language: [ 'cpp', 'python' ]
         # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python', 'ruby' ]
         # Learn more about CodeQL language support at https://aka.ms/codeql-docs/language-support
+        mode: [ 'pico', 'local' ]
 
     steps:
     - name: Checkout repository
@@ -48,11 +50,11 @@ jobs:
         # If you wish to specify custom queries, you can do so here or in a config file.
         # By default, queries listed here will override any specified in a config file.
         # Prefix the list here with "+" to use these queries and those in the config file.
-        
+
         # Details on CodeQL's query packs refer to : https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-code-scanning#using-queries-in-ql-packs
         # queries: security-extended,security-and-quality
 
-        
+
     # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
     # If this step fails, then you should remove it and run the build manually (see below)
     # - name: Autobuild
@@ -61,12 +63,12 @@ jobs:
     # ℹ️ Command-line programs to run using the OS shell.
     # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
 
-    #   If the Autobuild fails above, remove it and uncomment the following three lines. 
+    #   If the Autobuild fails above, remove it and uncomment the following three lines.
     #   modify them (or add more) to build your code if your project, please refer to the EXAMPLE below for guidance.
 
     - run: |
        echo "Run, Build Application using script"
-       ./workflows/autobuild.sh
+       ./workflows/autobuild.sh ${{ matrix.mode }}
 
     - name: Perform CodeQL Analysis
       uses: github/codeql-action/analyze@v2

.github/workflows/test.yml

@@ -0,0 +1,66 @@
+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "Emulation and test"
+
+on:
+  push:
+    branches: [ "master", "development", "development-eddsa" ]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [ "master", "development", "development-eddsa" ]
+  schedule:
+    - cron: '23 5 * * 4'
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout repository and submodules
+      uses: actions/checkout@v3
+      with:
+        submodules: recursive
+    - name: Build in container
+      run: ./tests/build-in-docker.sh
+    - name: Export image
+      run: |
+        mkdir -p artifacts
+        docker save pico-hsm-test:bullseye -o artifacts/docker-image.tar
+    - name: Temporarily save image
+      uses: actions/upload-artifact@v3
+      with:
+        name: docker-artifact
+        path: artifacts
+        retention-days: 1
+
+  test:
+    runs-on: ubuntu-latest
+    needs: build
+    strategy:
+      matrix:
+        suite: ["pkcs11", "pytest", "sc-hsm-pkcs11"]
+    steps:
+    - name: Checkout repository and submodules
+      uses: actions/checkout@v3
+      with:
+        submodules: recursive
+    - name: Retrieve saved image
+      uses: actions/download-artifact@v3
+      with:
+        name: docker-artifact
+        path: artifacts
+    - name: Load image
+      run: |
+        cd artifacts
+        docker load -q -i docker-image.tar
+    - name: Test ${{ matrix.suite }}
+      run: ./tests/run-test-in-docker.sh ${{ matrix.suite }}

.gitmodules

@@ -1,3 +1,3 @@
-[submodule "pico-hsm-sdk"]
-	path = pico-hsm-sdk
-	url = ../pico-hsm-sdk
+[submodule "pico-keys-sdk"]
+	path = pico-keys-sdk
+	url = https://github.com/polhenarejos/pico-keys-sdk

.uncrustify.cfg

@@ -0,0 +1,317 @@
+#
+# Uncrustify Configuration File
+# File Created With UncrustifyX 0.4.3 (252)
+#
+
+# Code-Modifying
+# --------------
+
+## Braces
+
+# Braces on single-line do statement
+mod_full_brace_do                       = add           # string (add/force/ignore/remove)
+
+# Braces on single-line else statement
+mod_full_brace_if                       = add           # string (add/force/ignore/remove)
+
+# Braces on single-line for statement
+mod_full_brace_for                      = add           # string (add/force/ignore/remove)
+
+# Braces on single-line while statement
+mod_full_brace_while                    = add           # string (add/force/ignore/remove)
+
+## Parentheses
+
+# Remove unnecessary parentheses on return statement
+mod_paren_on_return                     = remove        # string (add/force/ignore/remove)
+
+# Comments
+# --------
+
+## Other
+
+# Remove leading spaces from multi-line comments
+cmt_multi_check_last                    = false         # boolean (false/true)
+
+# General
+# -------
+
+## Other
+
+# Input tab size
+input_tab_size                          = 4             # number
+
+# Indentation
+# -----------
+
+## Indentation Size
+
+# Indentation column size
+indent_columns                          = 4             # number
+
+# Indentation size between case and switch
+indent_switch_case                      = 4             # number
+
+## Other
+
+# Align strings broken by backslash
+indent_align_string                     = true          # boolean (false/true)
+
+# Indent with tabs
+indent_with_tabs                        = 0             # number
+
+# Line-Splitting
+# --------------
+
+## Splitting
+
+# Code width
+code_width                              = 100           # number
+
+# Split long for statements at semicolons
+ls_for_split_full                       = true          # boolean (false/true)
+
+# Split long function prototypes/calls at commas
+ls_func_split_full                      = true          # boolean (false/true)
+
+# Newlines
+# --------
+
+## Newline Between
+
+# Newline between assignment and open brace
+nl_assign_brace                         = remove        # string (add/force/ignore/remove)
+
+# Newline between close brace and else
+nl_brace_else                           = add           # string (add/force/ignore/remove)
+
+# Newline between close brace and while
+nl_brace_while                          = remove        # string (add/force/ignore/remove)
+
+# Newline between do and open brace
+nl_do_brace                             = remove        # string (add/force/ignore/remove)
+
+# Newline between else and open brace
+nl_else_brace                           = remove        # string (add/force/ignore/remove)
+
+# Newline between enum and open brace
+nl_enum_brace                           = remove        # string (add/force/ignore/remove)
+
+# Newline between for and open brace
+nl_for_brace                            = remove        # string (add/force/ignore/remove)
+
+# Newline between function call and open brace
+nl_fcall_brace                          = add           # string (add/force/ignore/remove)
+
+# Newline between function signature and open brace
+nl_fdef_brace                           = remove        # string (add/force/ignore/remove)
+
+# Newline between if and open brace
+nl_if_brace                             = remove        # string (add/force/ignore/remove)
+
+# Newline between struct and open brace
+nl_struct_brace                         = remove        # string (add/force/ignore/remove)
+
+# Newline between switch and open brace
+nl_switch_brace                         = remove        # string (add/force/ignore/remove)
+
+# Newline between union and open brace
+nl_union_brace                          = remove        # string (add/force/ignore/remove)
+
+# Newline between while and open brace
+nl_while_brace                          = remove        # string (add/force/ignore/remove)
+
+## Other
+
+# Newline count at end of file
+nl_end_of_file_min                      = 1             # number
+
+# Newlines at end of file
+nl_end_of_file                          = add           # string (add/force/ignore/remove)
+
+# Newlines at start of file
+nl_start_of_file                        = remove        # string (add/force/ignore/remove)
+
+# Spacing
+# -------
+
+## Space After
+
+# Space after address-of operator
+sp_addr                                 = remove        # string (add/force/ignore/remove)
+
+# Space after cast
+sp_after_cast                           = add           # string (add/force/ignore/remove)
+
+# Space after comma
+sp_after_comma                          = add           # string (add/force/ignore/remove)
+
+# Space after dereference operator
+sp_deref                                = remove        # string (add/force/ignore/remove)
+
+# Space after final semicolon in empty for statement
+sp_after_semi_for_empty                 = remove        # string (add/force/ignore/remove)
+
+# Space after invert operator
+sp_inv                                  = remove        # string (add/force/ignore/remove)
+
+# Space after not operator
+sp_not                                  = remove        # string (add/force/ignore/remove)
+
+# Space after pointer star
+sp_after_ptr_star                       = remove        # string (add/force/ignore/remove)
+
+# Space after pointer star followed by function
+sp_after_ptr_star_func                  = remove        # string (add/force/ignore/remove)
+
+# Space after semicolon
+sp_after_semi                           = add           # string (add/force/ignore/remove)
+
+# Space after semicolon in non-empty for statements
+sp_after_semi_for                       = add           # string (add/force/ignore/remove)
+
+# Space after sign in assignment
+sp_sign                                 = remove        # string (add/force/ignore/remove)
+
+# Space after type
+sp_after_type                           = add           # string (add/force/ignore/remove)
+
+## Space Around
+
+# Space around arithmetic operators
+sp_arith                                = add           # string (add/force/ignore/remove)
+
+# Space around assignment operator
+sp_assign                               = add           # string (add/force/ignore/remove)
+
+# Space around boolean operators
+sp_bool                                 = add           # string (add/force/ignore/remove)
+
+# Space around compare operators
+sp_compare                              = add           # string (add/force/ignore/remove)
+
+# Space around increment/decrement operators
+sp_incdec                               = remove        # string (add/force/ignore/remove)
+
+# Space around member operators
+sp_member                               = remove        # string (add/force/ignore/remove)
+
+# Space around preprocessor concatenation operator
+sp_pp_concat                            = ignore        # string (add/force/ignore/remove)
+
+# Space around ternary condition colon
+sp_cond_colon                           = add           # string (add/force/ignore/remove)
+
+# Space around ternary condition question mark
+sp_cond_question                        = add           # string (add/force/ignore/remove)
+
+## Space Before
+
+# Space before backslash-newline at end of line
+sp_before_nl_cont                       = add           # string (add/force/ignore/remove)
+
+# Space before case colon
+sp_before_case_colon                    = remove        # string (add/force/ignore/remove)
+
+# Space before comma
+sp_before_comma                         = remove        # string (add/force/ignore/remove)
+
+# Space before if/for/switch/while open parenthesis
+sp_before_sparen                        = force         # string (add/force/ignore/remove)
+
+# Space before pointer star
+sp_before_ptr_star                      = add           # string (add/force/ignore/remove)
+
+# Space before semicolon
+sp_before_semi                          = remove        # string (add/force/ignore/remove)
+
+# Space before semicolon in empty for statement
+sp_before_semi_for_empty                = remove        # string (add/force/ignore/remove)
+
+# Space before semicolon in for statements
+sp_before_semi_for                      = remove        # string (add/force/ignore/remove)
+
+## Space Between
+
+# Space between __attribute__ and open parenthesis
+sp_attribute_paren                      = remove        # string (add/force/ignore/remove)
+
+# Space between close brace and else
+sp_brace_else                           = remove        # string (add/force/ignore/remove)
+
+# Space between close brace and typedef name
+sp_brace_typedef                        = force         # string (add/force/ignore/remove)
+
+# Space between closing parenthesis and open brace
+sp_fparen_brace                         = add           # string (add/force/ignore/remove)
+
+# Space between defined and open parenthesis
+sp_defined_paren                        = remove        # string (add/force/ignore/remove)
+
+# Space between else and open brace
+sp_else_brace                           = force         # string (add/force/ignore/remove)
+
+# Space between function name and open parenthesis
+sp_func_call_paren                      = remove        # string (add/force/ignore/remove)
+
+# Space between function name and open parenthesis in declaration
+sp_func_proto_paren                     = remove        # string (add/force/ignore/remove)
+
+# Space between function name and open parenthesis in function definition
+sp_func_def_paren                       = remove        # string (add/force/ignore/remove)
+
+# Space between if/for/switch/while close parenthesis and open brace
+sp_sparen_brace                         = force         # string (add/force/ignore/remove)
+
+# Space between macro and value
+sp_macro                                = add           # string (add/force/ignore/remove)
+
+# Space between macro function close parenthesis and value
+sp_macro_func                           = add           # string (add/force/ignore/remove)
+
+# Space between nested parentheses
+sp_paren_paren                          = remove        # string (add/force/ignore/remove)
+
+# Space between pointer stars
+sp_between_ptr_star                     = remove        # string (add/force/ignore/remove)
+
+# Space between preprocessor else and comment
+sp_endif_cmt                            = add           # string (add/force/ignore/remove)
+
+# Space between return type and function name
+sp_type_func                            = add           # string (add/force/ignore/remove)
+
+# Space between sizeof and open parenthesis
+sp_sizeof_paren                         = remove        # string (add/force/ignore/remove)
+
+## Space Inside
+
+# Space inside braces
+sp_inside_braces                        = add           # string (add/force/ignore/remove)
+
+# Space inside cast parentheses
+sp_inside_paren_cast                    = remove        # string (add/force/ignore/remove)
+
+# Space inside empty function parentheses
+sp_inside_fparens                       = remove        # string (add/force/ignore/remove)
+
+# Space inside enum braces
+sp_inside_braces_enum                   = add           # string (add/force/ignore/remove)
+
+# Space inside function parentheses
+sp_inside_fparen                        = remove        # string (add/force/ignore/remove)
+
+# Space inside if-condition parentheses
+sp_inside_sparen                        = remove        # string (add/force/ignore/remove)
+
+# Space inside non-empty square brackets
+sp_inside_square                        = remove        # string (add/force/ignore/remove)
+
+# Space inside parentheses
+sp_inside_paren                         = remove        # string (add/force/ignore/remove)
+
+# Space inside parentheses in function type
+sp_inside_tparen                        = remove        # string (add/force/ignore/remove)
+
+# Space inside struct/union braces
+sp_inside_braces_struct                 = add           # string (add/force/ignore/remove)

CMakeLists.txt

@@ -17,18 +17,36 @@
 
 cmake_minimum_required(VERSION 3.13)
 
+if(ESP_PLATFORM)
+set(EXTRA_COMPONENT_DIRS src pico-keys-sdk/src)
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+set(USB_ITF_CCID 1)
+set(USB_ITF_WCID 1)
+else()
+if(ENABLE_EMULATION)
+else()
 include(pico_sdk_import.cmake)
+endif()
 
 project(pico_hsm C CXX ASM)
 
 set(CMAKE_C_STANDARD 11)
 set(CMAKE_CXX_STANDARD 17)
 
+if(NOT ENABLE_EMULATION)
 pico_sdk_init()
+endif()
+
+if (NOT DEFINED __FOR_CI)
+    set(__FOR_CI 0)
+endif()
+if (__FOR_CI)
+    add_definitions(-D__FOR_CI)
+endif()
 
 add_executable(pico_hsm)
-
-target_sources(pico_hsm PUBLIC
+endif()
+set(SOURCES ${SOURCES}
         ${CMAKE_CURRENT_LIST_DIR}/src/hsm/sc_hsm.c
         ${CMAKE_CURRENT_LIST_DIR}/src/hsm/cmd_select.c
         ${CMAKE_CURRENT_LIST_DIR}/src/hsm/cmd_list_keys.c
@@ -56,45 +74,59 @@ target_sources(pico_hsm PUBLIC
         ${CMAKE_CURRENT_LIST_DIR}/src/hsm/cmd_session_pin.c
         ${CMAKE_CURRENT_LIST_DIR}/src/hsm/cmd_puk_auth.c
         ${CMAKE_CURRENT_LIST_DIR}/src/hsm/cmd_pso.c
+        ${CMAKE_CURRENT_LIST_DIR}/src/hsm/cmd_bip_slip.c
         ${CMAKE_CURRENT_LIST_DIR}/src/hsm/cvc.c
         ${CMAKE_CURRENT_LIST_DIR}/src/hsm/files.c
         ${CMAKE_CURRENT_LIST_DIR}/src/hsm/kek.c
-        ${CMAKE_CURRENT_LIST_DIR}/src/hsm/oid.c
 
         )
-set(HSM_DRIVER "ccid")
-include(pico-hsm-sdk/pico_hsm_sdk_import.cmake)
+set(USB_ITF_CCID 1)
+set(USB_ITF_WCID 1)
+include(pico-keys-sdk/pico_keys_sdk_import.cmake)
+if(ESP_PLATFORM)
+    project(pico_hsm)
+endif()
 
-target_include_directories(pico_hsm PUBLIC
+set(INCLUDES ${INCLUDES}
         ${CMAKE_CURRENT_LIST_DIR}/src/hsm
         )
+if(NOT ESP_PLATFORM)
+target_sources(pico_hsm PUBLIC ${SOURCES})
+target_include_directories(pico_hsm PUBLIC ${INCLUDES})
 
 target_compile_options(pico_hsm PUBLIC
     -Wall
-    -Werror
 )
+if (NOT MSVC)
+    target_compile_options(pico_hsm PUBLIC
+        -Werror
+    )
+endif()
 
+if(ENABLE_EMULATION)
+if (NOT MSVC)
+target_compile_options(pico_hsm PUBLIC
+        -fdata-sections
+        -ffunction-sections
+        )
+endif()
+if(APPLE)
+target_link_options(pico_hsm PUBLIC
+        -Wl,-dead_strip
+        )
+elseif(MSVC)
+    target_compile_options(pico_hsm PUBLIC
+        -WX
+    )
+
+    target_link_libraries(pico_hsm PUBLIC wsock32 ws2_32 Bcrypt)
+else()
+target_link_options(pico_hsm PUBLIC
+        -Wl,--gc-sections
+        )
+endif (APPLE)
+else()
 pico_add_extra_outputs(pico_hsm)
-
-target_link_libraries(pico_hsm PRIVATE pico_hsm_sdk pico_stdlib pico_multicore hardware_flash hardware_sync hardware_adc pico_unique_id hardware_rtc tinyusb_device tinyusb_board)
-
-#
-#project(flash_nuke C CXX ASM)
-#add_executable(flash_nuke nuke.c)
-#target_link_libraries(flash_nuke
-#        pico_stdlib
-#        hardware_flash
-#        )
-#pico_set_binary_type(flash_nuke no_flash)
-#
-#pico_add_extra_outputs(flash_nuke)
-
-#project(memory C CXX ASM)
-#add_executable(memory memory.c)
-#target_link_libraries(memory
-#        pico_stdlib
-#        hardware_flash
-#        )
-#pico_set_binary_type(memory no_flash)
-#
-#pico_add_extra_outputs(memory)
+target_link_libraries(pico_hsm PRIVATE pico_keys_sdk pico_stdlib pico_multicore hardware_flash hardware_sync hardware_adc pico_unique_id hardware_rtc tinyusb_device tinyusb_board)
+endif()
+endif()

README.md

@@ -1,140 +1,184 @@
 # Raspberry Pico HSM
-This is a project to create a Hardware Security Module (HSM) with a Raspberry Pico. It converts your Pico board into a HSM which is able to generate and store private keys, encrypt or decrypt with AES or signing data without to disclose the private key. In detail, the private key never leaves the board and it cannot be retrieved as it is encrypted in the flash memory.
+This project aims to transform a Raspberry Pi Pico or ESP32 microcontroller into a Hardware Security Module (HSM). The modified Pico or ESP32 board will be capable of generating and storing private keys, performing AES encryption or decryption, and signing data without exposing the private key. Specifically, the private key remains securely on the board and cannot be retrieved since it is encrypted within the flash memory.
 
 ## Capabilities
 ### > Key generation and encrypted storage
-Private and secret keys are stored with a master AES 256 key (DKEK). The DKEK is, at the same time, encrypted with a hashed and salted version of the PIN.
+Private and secret keys are secured using a master AES 256 key (MKEK). The MKEK is encrypted with a hashed and salted version of the PIN.
 **No private/secret keys, DKEK or PIN are stored in plain text ever. Never.**
 
-### > RSA key generation from 1024 to 4096 bits
-RSA key generation in place for 1024, 2048, 3072 and 4096 bits. Private keys never leave the device.
+### > RSA Key Generation (1024 to 4096 Bits)
+RSA key generation is supported for 1024, 2048, 3072, and 4096 bits. Private keys never leave the device.
 
-### > ECDSA key generation from 192 to 521 bits
-ECDSA key generation in place for different curves, from 192 to 521 bits.
+### > ECDSA Key Generation (192 to 521 Bits)
+ECDSA key generation supports various curves from 192 to 521 bits.
 
-### > ECC curves
-It supports secp192r1, secp256r1, secp384r1, secp521r1, brainpoolP256r1, brainpoolP384r1, brainpoolP512r1, secp192k1 (insecure), secp256k1 curves.
+### > ECC Curves
+Supported ECC curves include secp192r1, secp256r1, secp384r1, secp521r1, brainpoolP256r1, brainpoolP384r1, brainpoolP512r1, secp192k1 (insecure), secp256k1, Curve25519, and Curve448.
 
-### > SHA1, SHA224, SHA256, SHA384, SHA512 digests
-ECDSA and RSA signature can be combined with SHA digest in place.
+### > SHA Digests
+ECDSA and RSA signatures can be combined with SHA-1, SHA-224, SHA-256, SHA-384, and SHA-512 digests.
 
-### > Multiple RSA signature algorithms
-It supports RSA-PSS, RSA-PKCS and raw RSA signatures.
+### > Multiple RSA Signature Algorithms
+Supported RSA signature algorithms include RSA-PSS, RSA-PKCS, and raw RSA signatures.
 
-### > ECDSA raw and hash signature
-ECDSA signatures can be in raw or pre-hashed formats.
+### > ECDSA Signatures
+ECDSA signatures can be raw or pre-hashed.
 
-### > ECDH key derivation
-It supports the calculation of shared secrets with ECDH algorithm.
+### > ECDH Key Derivation
+Supports the ECDH algorithm for calculating shared secrets.
 
-### > EC private key derivation
-It allows ECDSA key derivation.[^1]
+### > EC Private Key Derivation
+Allows ECDSA key derivation.
 
-### > RSA-OEP and RSA-X-509 decryption
-It allows private decryption in place with RSA-OEP and RSA-X-509 algorithms.
+### > RSA Decryption
+Supports RSA-OEP and RSA-X.509 decryption.
 
-### > AES key generation
-It supports AES key generation in place with keys of 128, 192 and 256 bits.
+### > AES Key Generation
+Supports AES key generation with keys of 128, 192, and 256 bits.
 
-### > AES-CBC encryption/decryption
-AES encryption and decryption is performed in place.
+### > AES-CBC Encryption/Decryption
+Performs AES-CBC encryption and decryption.
+
+### > Advanced AES Modes
+Supports AES encryption and decryption in ECB, CBC, CFB, OFB, XTS, CTR, GCM, and CCM modes, with customizable IV/nonce and additional authenticated data (AAD).[^4]
+
+### > AES Key Generation (128, 192, 256, 512 Bits)
+Supports AES key generation up to 512 bits, useful for AES XTS where two 256-bit keys are concatenated.
 
 ### > CMAC
-It supports AES-CMAC authentication.[^1]
+Supports AES-CMAC authentication.[^1]
 
-### > AES derivation
-It supports AES secret key derivation.[^1]
+### > AES Secret Key Derivation
+Supports AES secret key derivation.[^1]
 
-### > PIN authorization
-Private and secret keys cannot be used without prior PIN authentication. It supports alphanumeric PIN.
+### > PIN Authorization
+Private and secret keys require prior PIN authentication. Supports alphanumeric PINs.
 
-### > PKCS11 compliant interface
-The module can be interfaced with PKCS11 standard.
+### > PKCS11 Compliant Interface
+Interfacing with the PKCS11 standard is supported.
 
-### > HRNG (hardware random number generator)
-It contains a harware random number generator properly modeled to guarantee maximum entropy.
+### > Hardware Random Number Generator (HRNG)
+Contains an HRNG designed for maximum entropy.
 
-### > Device Key Encryption Key (DKEK) shares
-It supports DKEK share imports. DKEK are used to wrap, unwrap and encrypt private and secret keys in the device.
+### > Device Key Encryption Key (DKEK) Shares
+Supports importing DKEK shares to wrap, unwrap, and encrypt keys.
 
-### > DKEK n-of-m threshold scheme
-It supports a n-of-m threshold scheme to minimize outage when a DKEK custodian is not available during the import process.
+### > DKEK n-of-m Threshold Scheme
+Supports an n-of-m threshold scheme to prevent outages when a DKEK custodian is unavailable.
 
-### > USB/CCID support with OpenSC, openssl, etc.
-Pico HSM has a full USB CCID stack to communicate with the host via OpenSC and PCSC. It allows the use of frontend applications such as OpenSSL via PKCS11 module.
+### > USB/CCID Support
+Full USB CCID stack for communication with the host via OpenSC and PCSC, allowing the use of frontend applications like OpenSSL via the PKCS11 module.
 
-### > Extended APDU support
-It supports extended APDU packets, which allows up to 65535 bytes.
+### > Extended APDU Support
+Supports extended APDU packets, allowing up to 65535 bytes.
 
 ### > CV Certificates
-Pico HSM manipulates CVC certificates and requests to minimize the storage of internal certificates.
+Handles CVC certificates and requests to minimize internal certificate storage.
 
 ### > Attestation
-Every generated key is attached to a certificate, signed by an external PKI to ensure that a particular key is effectively generated by this specific device.
+Each generated key is attached to a certificate signed by an external PKI, ensuring the key was generated by the specific device.
 
-### > Import external private keys and certificates
-It allows private key and certificates import via WKY or PKCS#12 files.[^2][^3]
+### > Import External Keys and Certificates
+Allows importing private keys and certificates via WKY or PKCS#12 files.[^2][^3]
 
-### > Tranport PIN
-It allows transport PIN for provisioning and forcing to set a new PIN.[^2] It is a tampered mechanism that ensures the device has not been unsealed during the transportation from the issuer to the legitimate user.
+### > Transport PIN
+Allows a transport PIN for provisioning, ensuring the device has not been tampered with during transportation.[^2]
 
-### > Press-to-confirm button
-It allows the use of BOOTSEL button to confirm operations with private/secret keys, such as signatures and decryption. When a private/secret key is loaded, the user has 15 seconds to press the button to confirm the operation.
-This feature protects the user from unwanted uses from background applications that may sign data without user notice.
+### > Press-to-Confirm Button
+Uses the BOOTSEL button to confirm operations with private/secret keys, providing a 15-second window to confirm the operation to protect against unauthorized use.
 
-### > Store and retrieve binary data
-It allows the storage of arbitrary files with binary data.
+### > Store and Retrieve Binary Data
+Allows the storage of arbitrary binary data files.
 
-### > Real time clock (RTC)
-Pico HSM has a RTC with external datetime setting and getting.
+### > Real-Time Clock (RTC)
+Includes an RTC with external date and time setting and retrieval.
 
-### > Secure Messaging (secure channel)
-Pico HSM supports secure channel, where the data packets between the host and device are encrypted to avoid man-in-the-middle attacks.
+### > Secure Messaging
+Supports secure channels to encrypt data packets between the host and device, preventing man-in-the-middle attacks.
 
 ### > Session PIN
-A specific session PIN can be set during the session opening to avoid the systemmatic use of PIN.
+A specific session PIN can be set during session opening to avoid systematic PIN usage.
 
-### > PKI CVCert remote issuing for Secure Message
+### > PKI CVCert Remote Issuing for Secure Messaging
 Secure channel messages are secured with a certificate issued by an external PKI.
 
-### > Multiple key domains
-Key domains are domains to store separate private/secret keys. Each domain is protected by a DKEK, independent from the other domains. Private/secret keys can be generated in different key domains to be used with separated DKEK.
-Therefore, a single device may contain different domains with independent keys.
+### > Multiple Key Domains
+Supports separate key domains protected by independent DKEKs, allowing different keys in different domains.
 
-### > Key usage counter
-A key usage counter is a counter that is reduced by 1 everytime that the private/secret key is used for signing, decrypting, derivation, etc. When it reaches 0, the key is disabled and cannot be used anymore.
+### > Key Usage Counter
+Tracks and limits the usage of private/secret keys, disabling keys once their usage counter reaches zero.
 
-Key usage can also be used to perform and auditory and track the usage of a particular key.
+### > Public Key Authentication (PKA)
+Supports PKA for enhanced security, requiring a secondary device for authentication using a challenge-response mechanism.
 
-### > Public Key Authentication
-Public Key Authentication (PKA) allows to authenticate by using a secondary device with a private key and a registered public key in the primary device. A challenge is generated by the primary Pico HSM and given to the secondary for signature. The secondary device signs the challenge and returns the signature. Then, the primary device verifies the signature with the registered public key and if it is valid, it grants full access, as normal PIN authentication.
+### > Secure Lock
+Adds an extra layer of security by locking the Pico HSM to a specific computer using a private key.
 
-In PKA, the PIN is used for protecting the DKEK, as classic method with only PIN, and PKA is used for adding an extra security layer. Therefore, this mechanism provides a higher degree of security, since it needs a secondary Pico HSM to authenticate the primary one.
+### > ChaCha20-Poly1305
+Supports the ChaCha20-Poly1305 encryption algorithm for secure data encryption.[^4]
+
+### > X25519 and X448
+Supports DH X25519 and X448 for key agreement, though these cannot be used for signing.
+
+### > Key Derivation Functions
+Supports HKDF, PBKDF2, and X963-KDF for symmetric key derivation.
+
+### > HMAC
+Supports HMAC generation with SHA digest algorithms.
+
+### > CMAC
+Supports CMAC with AES for keys of 128, 192, and 256 bits.
+
+### > XKEK
+Supports an advanced key sharing scheme (XKEK) for securely wrapping and unwrapping keys within authorized domains.
+
+### > Master Key Encryption Key (MKEK)
+Uses an MKEK to securely store all keys, encrypted with an ephemeral key derived from the hashed PIN.
+
+### > Hierarchical Deterministic Key Generation
+Supports BIP32 for asymmetric key derivation and SLIP10 for symmetric key derivation, enabling crypto wallet deployment with infinite key generation. Supports NIST 256 and Koblitz 256 curves for master key generation.[^4]
 
 [^1]: PKCS11 modules (`pkcs11-tool` and `sc-tool`) do not support CMAC and key derivation. It must be processed through raw APDU command (`opensc-tool -s`).
 [^2]: Available via SCS3 tool. See [SCS3](/doc/scs3.md "SCS3") for more information.
-[^3]: Imports are available only if the Pico HSM is previously initialized with a DKEK and the DKEK shares are available during the import process.
+[^3]: Imports are available only if the Pico HSM is previously initialized with a DKEK and DKEK shares are available during the import process.
+[^4]: Available by using PicoHSM python tool.
+
+### > ESP32-S3 support
+Pico HSM also supports ESP32-S3 boards, which add secure storage, flash encryption and secure boot.
+
+### > Dynamic VID/PID
+Supports setting VID & PID on-the-fly. Use `pico-hsm-tool.py` for specify VID/PID values and reboot the device.
+
+### > Rescue Pico HSM Tool
+Pico HSM Tool implements a new CCID stack to rescue the Pico HSM in case it has wrong VID/PID values and it is not recognized by the OS.
 
 ## Security considerations
-All secret keys (asymmetric and symmetric) are stored encrypted in the flash memory of the Raspberry Pico. DKEK is used as a 256 bit AES key to protect private and secret keys. Keys are never stored in RAM except for signature and decryption operations and only during the process. All keys (including DKEK) are loaded and cleared every time to avoid potential security flaws.
+All secret keys (both asymmetric and symmetric) are encrypted and stored in the flash memory of the Raspberry Pico. The DKEK, a 256-bit AES key, is used to protect these private and secret keys. Keys are only held in RAM during signature and decryption operations, and are loaded and cleared each time to avoid potential security vulnerabilities.
 
-At the same time, DKEK is encrypted with doubled salted and hashed PIN. Also, the PIN is hashed in memory during the session. Hence, PIN is never stored in plain text neither in flash nor in memory. Note that PIN is conveyed from the host to the HSM in plain text if no secure channel is provided.
+The DKEK itself is encrypted using a doubly salted and hashed PIN, and the PIN is hashed in memory during sessions. This ensures that the PIN is never stored in plain text, either in flash memory or in RAM. However, if no secure channel is used, the PIN is transmitted in plain text from the host to the HSM.
 
-If the Pico is stolen the contents of private and secret keys cannot be read without the PIN, even if the flash memory is dumped.
+In the event that the Pico is stolen, the private and secret key contents cannot be accessed without the PIN, even if the flash memory is dumped.
 
 ## Download
+**If you own an ESP32-S3 board, go to [ESP32 support](https://www.picokeys.com/esp32-support/) for further information.**
+
 Please, go to the Release page and download the UF2 file for your board.
 
-Note that UF2 files are shiped with a dummy VID/PID to avoid license issues (FEFF:FCFD). If you are planning to use it with OpenSC or similar, you should modify Info.plist of CCID driver to add these VID/PID or use the VID/PID patcher as follows:
+Note that UF2 files are shiped with a dummy VID/PID to avoid license issues (FEFF:FCFD). If you plan to use it with OpenSC or similar tools, you should modify Info.plist of CCID driver to add these VID/PID or use the [Pico Patcher tool](https://www.picokeys.com/pico-patcher/).
+
+Alternatively you can use the legacy VID/PID patcher as follows:
 `./patch_vidpid.sh VID:PID input_hsm_file.uf2 output_hsm_file.uf2`
 
 You can use whatever VID/PID (i.e., 234b:0000 from FISJ), but remember that you are not authorized to distribute the binary with a VID/PID that you do not own.
 
+Note that the pure-browser option [Pico Patcher tool](https://www.picokeys.com/pico-patcher/) is the most recommended.
+
 ## Build
 Before building, ensure you have installed the toolchain for the Pico and the Pico SDK is properly located in your drive.
 
 ```
 git clone https://github.com/polhenarejos/pico-hsm
+git submodule update --init --recursive
 cd pico-hsm
 mkdir build
 cd build
@@ -143,17 +187,34 @@ make
 ```
 Note that `PICO_BOARD`, `USB_VID` and `USB_PID` are optional. If not provided, `pico` board and VID/PID `FEFF:FCFD` will be used.
 
-After `make` ends, the binary file `pico_hsm.uf2` will be generated. Put your pico board into loading mode, by pushing `BOOTSEL` button while pluging on, and copy the UF2 to the new fresh usb mass storage Pico device. Once copied, the pico mass storage will be disconnected automatically and the pico board will reset with the new firmware. A blinking led will indicate the device is ready to work.
+Additionally, you can pass the `VIDPID=value` parameter to build the firmware with a known VID/PID. The supported values are:
+
+- `NitroHSM`
+- `NitroFIDO2`
+- `NitroStart`
+- `NitroPro`
+- `Nitro3`
+- `Yubikey5`
+- `YubikeyNeo`
+- `YubiHSM`
+- `Gnuk`
+- `GnuPG`
+
+After running `make`, the binary file `pico_hsm.uf2` will be generated. To load this onto your Pico board:
+
+1. Put the Pico board into loading mode by holding the `BOOTSEL` button while plugging it in.
+2. Copy the `pico_hsm.uf2` file to the new USB mass storage device that appears.
+3. Once the file is copied, the Pico mass storage device will automatically disconnect, and the Pico board will reset with the new firmware.
+4. A blinking LED will indicate that the device is ready to work.
 
 ### Docker
 Independent from your Linux distribution or when using another OS that supports Docker, you could build a specific pico-hsm version in a Linux container.
 
-
 ```
 sudo docker build \
-    --build-arg VERSION_PICO_SDK=1.4.0 \
-    --build-arg VERSION_MAJOR=2 \
-    --build-arg VERSION_MINOR=6 \
+    --build-arg VERSION_PICO_SDK=1.5.0 \
+    --build-arg VERSION_MAJOR=3 \
+    --build-arg VERSION_MINOR=4 \
     --build-arg PICO_BOARD=waveshare_rp2040_zero \
     --build-arg USB_VID=0xfeff \
     --build-arg USB_PID=0xfcfd \
@@ -170,36 +231,31 @@ sudo docker rm mybuild
 ```
 
 ## Usage
-The firmware uploaded to the Pico contains a reader and a virtual smart card. It is like having a physical reader with an inserted SIM card.
-We recommend the use of [OpenSC](http://github.com/opensc/opensc/ "OpenSC") to communicate with the reader. If it is not installed, you can download and build it or install the binaries for your system. The first command is to ensure that the Pico is detected as a HSM:
-```
+The firmware uploaded to the Pico contains a reader and a virtual smart card, similar to having a physical reader with an inserted SIM card. We recommend using [OpenSC](http://github.com/opensc/opensc/ "OpenSC") to communicate with the reader. If OpenSC is not installed, you can download and build it or install the binaries for your system.
+
+To ensure that the Pico is detected as an HSM, use the following command:
+```sh
 opensc-tool -an
 ```
-It should return a text like the following:
-```
+It should return a text similar to:
+```sh
 Using reader with a card: Free Software Initiative of Japan Gnuk
 3b:fe:18:00:00:81:31:fe:45:80:31:81:54:48:53:4d:31:73:80:21:40:81:07:fa
 SmartCard-HSM
 ```
 The name of the reader may vary if you modified the VID/PID.
 
-For initialization and asymmetric operations, check [doc/usage.md](/doc/usage.md).
+For further details and operations, refer to the following documentation:
 
-For signing and verification operations, check [doc/sign-verify.md](/doc/sign-verify.md).
-
-For asymmetric encryption and decryption, check [doc/asymmetric-ciphering.md](/doc/asymmetric-ciphering.md).
-
-For backup, restore and DKEK share management, check [doc/backup-and-restore.md](/doc/backup-and-restore.md).
-
-For AES key generation, encryption and decryption, check [doc/aes.md](/doc/aes.md).
-
-For 4096 bits RSA support, check [doc/scs3.md](/doc/scs3.md).
-
-For storing and retrieving arbitrary data, check [doc/store_data.md](/doc/store_data.md).
-
-For extra options, such as set/get real datetime or enable/disable press-to-confirm button, check [doc/extra_command.md](/doc/extra_command.md).
-
-For Public Key Authentication, check [doc/public_key_authentication.md](/doc/public_key_authentication.md).
+- Initialization and Asymmetric Operations [doc/usage.md](/doc/usage.md)
+- Signing and Verification Operations [doc/sign-verify.md](/doc/sign-verify.md)
+- Asymmetric Encryption and Decryption [doc/asymmetric-ciphering.md](/doc/asymmetric-ciphering.md)
+- Backup, Restore, and DKEK Share Management [doc/backup-and-restore.md](/doc/backup-and-restore.md)
+- AES Key Generation, Encryption, and Decryption [doc/aes.md](/doc/aes.md)
+- 4096 Bits RSA Support [doc/scs3.md](/doc/scs3.md)
+- Storing and Retrieving Arbitrary Data [doc/store_data.md](/doc/store_data.md)
+- Extra Options (e.g., set/get real datetime, enable/disable press-to-confirm button [doc/extra_command.md](/doc/extra_command.md)
+- Public Key Authentication [doc/public_key_authentication.md](/doc/public_key_authentication.md)
 
 ## Operation time
 ### Keypair generation
@@ -221,14 +277,17 @@ Generating EC keys is almost instant. RSA keypair generation takes some time, sp
 | 4096 | 15 |
 
 ## Press-to-confirm button
-Raspberry Pico comes with the BOOTSEL button to load the firmware. When this firmware is running, the button can be used for other purposes. Pico HSM uses this button to confirm private/secret operations. This feature is optional and it shall be enabled. For more information, see [doc/extra_command.md](/doc/extra_command.md).
+The Raspberry Pico includes a BOOTSEL button used for loading firmware initially. Once the Pico HSM firmware is running, this button can be repurposed for additional functionalities. Specifically, the Pico HSM utilizes this button to confirm private and secret operations, a feature that is optional but highly recommended for enhanced security.
 
-With this feature enabled, everytime that a private/secret key is loaded, the Pico HSM awaits for the user confirmation by pressing the BOOTSEL button. The Led of the Pico HSM will remain almost illuminated, turning off quickly once a second, indicating that the user must press the button to confirm the operation. Otherwise, the Pico HSM waits indefinitely. See [Led blink](#press-to-confirm) for a picture of the blinking sequence. When in this mode, the Pico HSM sends periodic timeout commands to the host to do not trigger the timeout operation.
+When enabled, each time a private or secret key operation is initiated, the Pico HSM enters a waiting state where it awaits user confirmation by pressing the BOOTSEL button. During this waiting period, the Pico HSM's LED remains mostly illuminated but blinks off briefly every second, signaling to the user to press the button for confirmation. If no action is taken, the Pico HSM will continue to wait indefinitely. This operation mode includes periodic timeout commands sent to the host to prevent the session from timing out prematurely.
 
-This feature is an extra layer of security, as it requires the user intervention to sign or decrypt and it ensures that any application will use the Pico HSM without user awareness. However, it is not recommended for servers or other environments where operations are authomatized, since it requires a physical access to the Pico HSM to push the button.
+This feature adds an additional layer of security by requiring physical user intervention for sensitive operations such as signing or decrypting data. It mitigates risks associated with unauthorized applications or scripts using the Pico HSM without user awareness. However, it is not recommended for server environments or other automated settings where physical access to press the button may not be practical.
+
+For more details on configuring and using this feature, refer to the [doc/extra_command.md](/doc/extra_command.md) document.
 
 ## Led blink
 Pico HSM uses the led to indicate the current status. Four states are available:
+
 ### Press to confirm
 The Led is almost on all the time. It goes off for 100 miliseconds every second.
 
@@ -251,18 +310,20 @@ While processing, the Pico HSM is busy and cannot receive additional commands un
 
 ## Driver
 
-Pico HSM uses the `sc-hsm` driver provided by [OpenSC](https://github.com/OpenSC/OpenSC/ "OpenSC") or the `sc-hsm-embedded` driver provided by [CardContact](https://github.com/CardContact/sc-hsm-embedded "CardContact"). This driver utilizes the standardized PKCS#11 interface to communicate with the user and it can be used with many engines that accept PKCS#11 interface, such as OpenSSL, P11 library or pkcs11-tool.
+The Pico HSM uses either the `sc-hsm` driver from [OpenSC](https://github.com/OpenSC/OpenSC/) or the `sc-hsm-embedded` driver from [CardContact](https://github.com/CardContact/sc-hsm-embedded/) to interface with external applications. These drivers employ the standardized PKCS#11 interface, making it compatible with various cryptographic engines that support PKCS#11, such as OpenSSL, P11 library, or pkcs11-tool.
 
-Pico HSM relies on PKCS#15 structure to store and manipulate the internal files (PINs, private keys, certificates, etc.) and directories. Therefore, it accepts the commands from `pkcs15-tool`. For instance, `pkcs15-tool -D` will list all elements stored in the Pico HSM.
+Internally, the Pico HSM organizes and manages its data using the PKCS#15 structure, which includes elements like PINs, private keys, and certificates. Commands can be issued to interact with these stored elements using tools such as `pkcs15-tool`. For example, `pkcs15-tool -D` lists all elements stored within the Pico HSM.
 
-The way to communicate is exactly the same as with other cards, such as OpenPGP or similar.
+Communication with the Pico HSM follows the same protocols and methods used with other smart cards, such as OpenPGP cards or similar devices.
 
-For an advanced usage, see the docs and examples.
-
-Pico HSM also supports SCS3 tool for advanced use and multiple key domain. See [SCS3](/doc/scs3.md) for more information.
+For advanced usage scenarios, refer to the documentation and examples provided. Additionally, the Pico HSM supports the SCS3 tool for more sophisticated operations and includes features like multiple key domains. For detailed information on SCS3 usage, refer to [SCS3 documentation](/doc/scs3.md).
 
 ### Important
-OpenSC relies on PCSC driver, which reads a list (`Info.plist`) that contains a pair of VID/PID of supported readers. In order to be detectable, you must patch the UF2 binary (if you just downloaded from the [Release section](https://github.com/polhenarejos/pico-hsm/releases "Release section")) or configure the project with the proper VID/PID with `USB_VID` and `USB_PID` parameters in `CMake` (see [Build section](#build "Build section")). Note that you cannot distribute the patched/compiled binary if you do not own the VID/PID or have an explicit authorization.
+OpenSC relies on PCSC driver, which reads a list (`Info.plist`) that contains a pair of VID/PID of supported readers. In order to be detectable, you have several options:
+- Use `pico-hsm-tool.py` to modify VID/PID on-the-fly.
+- Use the online [Pico Patcher tool](https://www.picokeys.com/pico-patcher/).
+- Patch the UF2 binary (if you just downloaded from the [Release section](https://github.com/polhenarejos/pico-hsm/releases "Release section"))
+- Build and configure the project with the proper VID/PID with `USB_VID` and `USB_PID` parameters in `CMake` (see [Build section](#build "Build section")). Note that you cannot distribute the patched/compiled binary if you do not own the VID/PID or have an explicit authorization.
 
 ## Credits
 Pico HSM uses the following libraries or portion of code:

build_pico_hsm.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 
-VERSION_MAJOR="3"
-VERSION_MINOR="0"
+VERSION_MAJOR="4"
+VERSION_MINOR="0-eddsa1"
 
 rm -rf release/*
 cd build_release
@@ -17,6 +17,7 @@ for board in adafruit_feather_rp2040 \
     eetree_gamekit_rp2040 \
     garatronic_pybstick26_rp2040 \
     melopero_shake_rp2040 \
+    nullbits_bit_c_pro \
     pico \
     pico_w \
     pimoroni_badger2040 \
@@ -31,6 +32,7 @@ for board in adafruit_feather_rp2040 \
     pimoroni_servo2040 \
     pimoroni_tiny2040 \
     pimoroni_tiny2040_2mb \
+    pololu_3pi_2040_robot \
     seeed_xiao_rp2040 \
     solderparty_rp2040_stamp \
     solderparty_rp2040_stamp_carrier \
@@ -40,6 +42,8 @@ for board in adafruit_feather_rp2040 \
     sparkfun_thingplus \
     vgaboard \
     waveshare_rp2040_lcd_0.96 \
+    waveshare_rp2040_lcd_1.28 \
+    waveshare_rp2040_one \
     waveshare_rp2040_plus_4mb \
     waveshare_rp2040_plus_16mb \
     waveshare_rp2040_zero \

doc/usage.md

@@ -30,7 +30,7 @@ PIN=648219
 ## Initialization
 The first step is to initialize the HSM. To do so, use the `pico-hsm-tool.py` in `tools` folder:
 ```
-$ python3 pico-hsm-tool initialize --so-pin 3537363231383830 --pin 648219
+$ python3 tools/pico-hsm-tool.py --pin 648219 initialize --so-pin 57621880
 ```
 The PIN number is used to manage all private keys in the device. It supports three attemps. After the third PIN failure, it gets blocked.
 The PIN accepts from 6 to 16 characters.
@@ -51,7 +51,7 @@ $ pkcs11-tool --login --pin 648219 --change-pin --new-pin 123456
 
 To unblock the PIN:
 ```
-$ pkcs11-tool --login --login-type so --so-pin=3537363231383830 --init-pin --new-pin=648219
+$ pkcs11-tool --login --login-type so --so-pin 3537363231383830 --init-pin --new-pin 648219
 ```
 
 ## Keypair generation

sdkconfig.defaults

@@ -0,0 +1,53 @@
+# This file was generated using idf.py save-defconfig. It can be edited manually.
+# Espressif IoT Development Framework (ESP-IDF) Project Minimal Configuration
+#
+IGNORE_UNKNOWN_FILES_FOR_MANAGED_COMPONENTS=1
+
+CONFIG_TINYUSB=y
+
+CONFIG_PARTITION_TABLE_CUSTOM=y
+CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="pico-keys-sdk/partitions.csv"
+CONFIG_PARTITION_TABLE_FILENAME="pico-keys-sdk/partitions.csv"
+CONFIG_ESPTOOLPY_FLASHSIZE_4MB=y
+CONFIG_WL_SECTOR_SIZE_512=y
+CONFIG_WL_SECTOR_MODE_PERF=y
+
+CONFIG_MBEDTLS_CMAC_C=y
+CONFIG_MBEDTLS_CHACHA20_C=y
+CONFIG_MBEDTLS_POLY1305_C=y
+CONFIG_MBEDTLS_CHACHAPOLY_C=y
+CONFIG_MBEDTLS_HKDF_C=y
+CONFIG_MBEDTLS_HARDWARE_ECC=y
+CONFIG_MBEDTLS_HARDWARE_GCM=y
+# CONFIG_MBEDTLS_HARDWARE_MPI is not set
+CONFIG_MBEDTLS_HARDWARE_SHA=y
+CONFIG_MBEDTLS_HARDWARE_AES=y
+# CONFIG_MBEDTLS_ROM_MD5 is not set
+CONFIG_MBEDTLS_SHA512_C=y
+CONFIG_MBEDTLS_TLS_DISABLED=y
+# CONFIG_MBEDTLS_TLS_ENABLED is not set
+# CONFIG_ESP_TLS_USE_DS_PERIPHERAL is not set
+# CONFIG_ESP_WIFI_ENABLED is not set
+# CONFIG_ESP_WIFI_MBEDTLS_CRYPTO is not set
+# CONFIG_ESP_WIFI_MBEDTLS_TLS_CLIENT is not set
+# CONFIG_WPA_MBEDTLS_CRYPTO is not set
+# CONFIG_MBEDTLS_PSK_MODES is not set
+# CONFIG_MBEDTLS_KEY_EXCHANGE_RSA is not set
+# CONFIG_MBEDTLS_KEY_EXCHANGE_ELLIPTIC_CURVE is not set
+# CONFIG_MBEDTLS_KEY_EXCHANGE_ECDHE_RSA is not set
+# CONFIG_MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA is not set
+# CONFIG_MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA is not set
+# CONFIG_MBEDTLS_KEY_EXCHANGE_ECDH_RSA is not set
+# CONFIG_MBEDTLS_SSL_RENEGOTIATION is not set
+# CONFIG_MBEDTLS_SSL_PROTO_TLS1_2 is not set
+# CONFIG_MBEDTLS_SSL_PROTO_GMTSSL1_1 is not set
+# CONFIG_MBEDTLS_SSL_PROTO_DTLS is not set
+# CONFIG_MBEDTLS_SSL_ALPN is not set
+# CONFIG_MBEDTLS_CLIENT_SSL_SESSION_TICKETS is not set
+# CONFIG_MBEDTLS_SERVER_SSL_SESSION_TICKETS is not set
+# CONFIG_ESP32_WIFI_ENABLE_WPA3_SAE is not set
+# CONFIG_ESP32_WIFI_ENABLE_WPA3_OWE_STA is not set
+# CONFIG_ESP_WIFI_ENABLE_WPA3_SAE is not set
+# CONFIG_ESP_WIFI_ENABLE_WPA3_OWE_STA is not set
+
+CONFIG_ESP_COREDUMP_ENABLE_TO_UART=y

src/hsm/CMakeLists.txt

@@ -0,0 +1,6 @@
+idf_component_register(
+    SRCS ${SOURCES}
+    INCLUDE_DIRS . ../../pico-keys-sdk/src ../../pico-keys-sdk/src/fs ../../pico-keys-sdk/src/rng ../../pico-keys-sdk/src/usb
+    REQUIRES bootloader_support esp_partition esp_tinyusb zorxx__neopixel mbedtls efuse
+)
+idf_component_set_property(${COMPONENT_NAME} WHOLE_ARCHIVE ON)

src/hsm/cmd_bip_slip.c

@@ -0,0 +1,326 @@
+/*
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2022 Pol Henarejos.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "sc_hsm.h"
+#include "files.h"
+#include "random.h"
+#include "kek.h"
+#include "asn1.h"
+
+const uint8_t *k1_seed = (const uint8_t *) "Bitcoin seed";
+const uint8_t *p1_seed = (const uint8_t *) "Nist256p1 seed";
+const uint8_t *sym_seed = (const uint8_t *) "Symmetric key seed";
+mbedtls_ecp_keypair hd_context = { 0 };
+uint8_t hd_keytype = 0;
+
+int node_derive_bip_child(const mbedtls_ecp_keypair *parent,
+                          const uint8_t cpar[32],
+                          const uint8_t *i,
+                          mbedtls_ecp_keypair *child,
+                          uint8_t cchild[32]) {
+    uint8_t data[1 + 32 + 4], I[64], *iL = I, *iR = I + 32;
+    mbedtls_mpi il, kchild;
+    mbedtls_mpi_init(&il);
+    mbedtls_mpi_init(&kchild);
+    if (i[0] >= 0x80) {
+        if (mbedtls_mpi_cmp_int(&parent->d, 0) == 0) {
+            return CCID_ERR_NULL_PARAM;
+        }
+        data[0] = 0x00;
+        mbedtls_mpi_write_binary(&parent->d, data + 1, 32);
+    }
+    else {
+        size_t olen = 0;
+        mbedtls_ecp_point_write_binary(&parent->grp,
+                                       &parent->Q,
+                                       MBEDTLS_ECP_PF_COMPRESSED,
+                                       &olen,
+                                       data,
+                                       33);
+    }
+    do {
+        memcpy(data + 33, i, 4);
+        mbedtls_md_hmac(mbedtls_md_info_from_type(MBEDTLS_MD_SHA512),
+                        cpar,
+                        32,
+                        data,
+                        sizeof(data),
+                        I);
+        mbedtls_mpi_read_binary(&il, iL, 32);
+        mbedtls_mpi_add_mpi(&kchild, &il, &parent->d);
+        mbedtls_mpi_mod_mpi(&kchild, &kchild, &parent->grp.N);
+        data[0] = 0x01;
+        memcpy(data + 1, iR, 32);
+    } while (mbedtls_mpi_cmp_mpi(&il,
+                                 &parent->grp.N) != -1 || mbedtls_mpi_cmp_int(&kchild, 0) == 0);
+    mbedtls_mpi_copy(&child->d, &kchild);
+    mbedtls_ecp_mul(&child->grp, &child->Q, &child->d, &child->grp.G, random_gen, NULL);
+    memcpy(cchild, iR, 32);
+    mbedtls_mpi_free(&il);
+    mbedtls_mpi_free(&kchild);
+    return CCID_OK;
+}
+
+int sha256_ripemd160(const uint8_t *buffer, size_t buffer_len, uint8_t *output) {
+    mbedtls_md(mbedtls_md_info_from_type(MBEDTLS_MD_SHA256), buffer, buffer_len, output);
+    mbedtls_md(mbedtls_md_info_from_type(MBEDTLS_MD_RIPEMD160), output, 32, output);
+    return CCID_OK;
+}
+
+int sha256_sha256(const uint8_t *buffer, size_t buffer_len, uint8_t *output) {
+    mbedtls_md(mbedtls_md_info_from_type(MBEDTLS_MD_SHA256), buffer, buffer_len, output);
+    mbedtls_md(mbedtls_md_info_from_type(MBEDTLS_MD_SHA256), output, 32, output);
+    return CCID_OK;
+}
+
+int node_fingerprint_bip(mbedtls_ecp_keypair *ctx, uint8_t fingerprint[4]) {
+    size_t olen = 0;
+    uint8_t buffer[33];
+    mbedtls_ecp_point_write_binary(&ctx->grp,
+                                   &ctx->Q,
+                                   MBEDTLS_ECP_PF_COMPRESSED,
+                                   &olen,
+                                   buffer,
+                                   sizeof(buffer));
+    sha256_ripemd160(buffer, sizeof(buffer), buffer);
+    memcpy(fingerprint, buffer, 4);
+    return CCID_OK;
+}
+
+int node_fingerprint_slip(mbedtls_ecp_keypair *ctx, uint8_t fingerprint[4]) {
+    uint8_t buffer[32];
+    mbedtls_mpi_write_binary(&ctx->d, buffer, sizeof(buffer));
+    sha256_ripemd160(buffer, sizeof(buffer), buffer);
+    memcpy(fingerprint, buffer, 4);
+    return CCID_OK;
+}
+
+int load_master_bip(uint16_t mid, mbedtls_ecp_keypair *ctx, uint8_t chain[32],
+                    uint8_t key_type[1]) {
+    uint8_t mkey[65];
+    mbedtls_ecp_keypair_init(ctx);
+    file_t *ef = search_file(EF_MASTER_SEED | mid);
+    if (!file_has_data(ef)) {
+        return CCID_ERR_FILE_NOT_FOUND;
+    }
+    memcpy(mkey, file_get_data(ef), sizeof(mkey));
+    int r = mkek_decrypt(mkey + 1,
+                         sizeof(mkey) - 1);
+    if (r != CCID_OK) {
+        return CCID_EXEC_ERROR;
+    }
+    if (mkey[0] == 0x1 || mkey[0] == 0x2) {
+        if (mkey[0] == 0x1) {
+            mbedtls_ecp_group_load(&ctx->grp, MBEDTLS_ECP_DP_SECP256K1);
+        }
+        else if (mkey[0] == 0x2) {
+            mbedtls_ecp_group_load(&ctx->grp, MBEDTLS_ECP_DP_SECP256R1);
+        }
+        else {
+            return CCID_WRONG_DATA;
+        }
+
+        mbedtls_mpi_read_binary(&ctx->d, mkey + 1, 32);
+        memcpy(chain, mkey + 33, 32);
+        mbedtls_ecp_mul(&ctx->grp, &ctx->Q, &ctx->d, &ctx->grp.G, random_gen, NULL);
+    }
+    else if (mkey[0] == 0x3) {
+        mbedtls_mpi_read_binary(&ctx->d, mkey + 33, 32);
+        memcpy(chain, mkey + 1, 32);
+    }
+    key_type[0] = mkey[0];
+    return CCID_OK;
+}
+
+int node_derive_path(const uint8_t *path,
+                     uint16_t path_len,
+                     mbedtls_ecp_keypair *ctx,
+                     uint8_t chain[32],
+                     uint8_t fingerprint[4],
+                     uint8_t *nodes,
+                     uint8_t last_node[4],
+                     uint8_t key_type[1]) {
+    uint8_t *tag_data = NULL, *p = NULL;
+    uint16_t tag_len = 0, tag = 0x0;
+    uint8_t node = 0, N[64] = { 0 };
+    int r = 0;
+    memset(last_node, 0, 4);
+    memset(fingerprint, 0, 4);
+
+    asn1_ctx_t ctxi;
+    asn1_ctx_init((uint8_t *)path, path_len, &ctxi);
+    for (; walk_tlv(&ctxi, &p, &tag, &tag_len, &tag_data); node++) {
+        if (tag == 0x02) {
+            if ((node == 0 && tag_len != 1) || (node != 0 && tag_len != 4)) {
+                return CCID_WRONG_DATA;
+            }
+            if (node == 0) {
+                if ((r = load_master_bip(tag_data[0], ctx, chain, key_type)) != CCID_OK) {
+                    return r;
+                }
+            }
+            else if (node > 0) {
+                node_fingerprint_bip(ctx, fingerprint);
+                if ((r = node_derive_bip_child(ctx, chain, tag_data, ctx, chain)) != CCID_OK) {
+                    return r;
+                }
+                memcpy(last_node, tag_data, 4);
+            }
+        }
+        else if (tag == 0x04) {
+            if (node == 0) {
+                return CCID_WRONG_DATA;
+            }
+            else if (node > 0) {
+                node_fingerprint_slip(ctx, fingerprint);
+                *(tag_data - 1) = 0;
+                mbedtls_md_hmac(mbedtls_md_info_from_type(MBEDTLS_MD_SHA512),
+                                chain,
+                                32,
+                                tag_data - 1,
+                                tag_len + 1,
+                                N);
+                memcpy(chain, N, 32);
+                mbedtls_mpi_read_binary(&ctx->d, N + 32, 32);
+            }
+        }
+    }
+    if (nodes) {
+        *nodes = node;
+    }
+    return CCID_OK;
+}
+
+int cmd_bip_slip() {
+    uint8_t p1 = P1(apdu), p2 = P2(apdu);
+    if (p1 == 0x1 || p1 == 0x2 || p1 == 0x3) { // Master generation (K1 and P1)
+        if (p2 >= 10) {
+            return SW_INCORRECT_P1P2();
+        }
+        uint8_t mkey[65], *seed = mkey + 1, seed_len = 64;
+        const uint8_t *key_seed = NULL;
+        mbedtls_mpi il;
+        mbedtls_mpi_init(&il);
+        mbedtls_ecp_group grp;
+        mbedtls_ecp_group_init(&grp);
+        if (p1 == 0x1) {
+            mbedtls_ecp_group_load(&grp, MBEDTLS_ECP_DP_SECP256K1);
+            key_seed = k1_seed;
+        }
+        else if (p1 == 0x2) {
+            mbedtls_ecp_group_load(&grp, MBEDTLS_ECP_DP_SECP256R1);
+            key_seed = p1_seed;
+        }
+        else if (p1 == 0x3) {
+            key_seed = sym_seed;
+        }
+        if (apdu.nc == 0) {
+            seed_len = 64;
+            random_gen(NULL, seed, seed_len);
+        }
+        else {
+            seed_len = MIN((uint8_t)apdu.nc, 64);
+            memcpy(seed, apdu.data, seed_len);
+        }
+        if (p1 == 0x1 || p1 == 0x2) {
+            do {
+                mbedtls_md_hmac(mbedtls_md_info_from_type(MBEDTLS_MD_SHA512), key_seed,
+                                strlen((char *) key_seed), seed, seed_len, seed);
+                mbedtls_mpi_read_binary(&il, seed, 32);
+                seed_len = 64;
+            } while (mbedtls_mpi_cmp_int(&il, 0) == 0 || mbedtls_mpi_cmp_mpi(&il, &grp.N) != -1);
+            mbedtls_ecp_group_free(&grp);
+            mbedtls_mpi_free(&il);
+        }
+        else if (p1 == 0x3) {
+            mbedtls_md_hmac(mbedtls_md_info_from_type(MBEDTLS_MD_SHA512), key_seed,
+                            strlen((char *) key_seed), seed, seed_len, seed);
+        }
+        mkey[0] = p1;
+        file_t *ef = file_new(EF_MASTER_SEED | p2);
+        int r = mkek_encrypt(mkey + 1, sizeof(mkey) - 1);
+        if (r != CCID_OK) {
+            return SW_EXEC_ERROR();
+        }
+        r = file_put_data(ef, mkey, sizeof(mkey));
+        if (r != CCID_OK) {
+            return SW_EXEC_ERROR();
+        }
+        low_flash_available();
+    }
+    else if (p1 == 0xA) {
+        if (apdu.nc == 0) {
+            return SW_WRONG_LENGTH();
+        }
+        mbedtls_ecp_keypair ctx;
+        uint8_t chain[32] = { 0 }, fgpt[4] = { 0 }, last_node[4] = { 0 }, key_type = 0, nodes = 0;
+        size_t olen = 0;
+        int r =
+            node_derive_path(apdu.data, (uint16_t)apdu.nc, &ctx, chain, fgpt, &nodes, last_node, &key_type);
+        if (r != CCID_OK) {
+            mbedtls_ecp_keypair_free(&ctx);
+            return SW_EXEC_ERROR();
+        }
+        uint8_t pubkey[33];
+        res_APDU_size = 0;
+        memcpy(res_APDU, "\x04\x88\xB2\x1E", 4);
+        res_APDU_size += 4;
+        res_APDU[res_APDU_size++] = nodes - 1;
+        memcpy(res_APDU + res_APDU_size, fgpt, 4);
+        res_APDU_size += 4;
+        memcpy(res_APDU + res_APDU_size, last_node, 4);
+        res_APDU_size += 4;
+        if (key_type == 0x1 || key_type == 0x2) {
+            memcpy(res_APDU + res_APDU_size, chain, 32);
+            res_APDU_size += 32;
+            mbedtls_ecp_point_write_binary(&ctx.grp,
+                                           &ctx.Q,
+                                           MBEDTLS_ECP_PF_COMPRESSED,
+                                           &olen,
+                                           pubkey,
+                                           sizeof(pubkey));
+            memcpy(res_APDU + res_APDU_size, pubkey, olen);
+            res_APDU_size += (uint16_t)olen;
+        }
+        else if (key_type == 0x3) {
+            sha256_sha256(chain, 32, chain);
+            memcpy(res_APDU + res_APDU_size, chain, 32);
+            res_APDU_size += 32;
+            mbedtls_mpi_write_binary(&ctx.d, pubkey, 32);
+            sha256_sha256(pubkey, 32, pubkey);
+            memcpy(res_APDU + res_APDU_size, pubkey, 32);
+            res_APDU_size += 32;
+        }
+        mbedtls_ecp_keypair_free(&ctx);
+    }
+    else if (p1 == 0x10) {
+        uint8_t chain[32] = { 0 }, fgpt[4] = { 0 }, last_node[4] = { 0 }, nodes = 0;
+        int r = node_derive_path(apdu.data,
+                                 (uint16_t)apdu.nc,
+                                 &hd_context,
+                                 chain,
+                                 fgpt,
+                                 &nodes,
+                                 last_node,
+                                 &hd_keytype);
+        if (r != CCID_OK) {
+            mbedtls_ecp_keypair_free(&hd_context);
+            return SW_EXEC_ERROR();
+        }
+    }
+    return SW_OK();
+}

src/hsm/cmd_challenge.c

@@ -22,12 +22,13 @@ uint8_t challenge[256];
 uint8_t challenge_len = 0;
 
 int cmd_challenge() {
-    uint8_t *rb = (uint8_t *)random_bytes_get(apdu.ne);
-    if (!rb)
+    uint8_t *rb = (uint8_t *) random_bytes_get(apdu.ne);
+    if (!rb) {
         return SW_WRONG_LENGTH();
+    }
     memcpy(res_APDU, rb, apdu.ne);
-    challenge_len = MIN(apdu.ne, sizeof(challenge));
+    challenge_len = (uint8_t)MIN(apdu.ne, sizeof(challenge));
     memcpy(challenge, rb, challenge_len);
-    res_APDU_size = apdu.ne;
+    res_APDU_size = (uint16_t)apdu.ne;
     return SW_OK();
 }

src/hsm/cmd_change_pin.c

@@ -23,42 +23,47 @@ int cmd_change_pin() {
     if (P1(apdu) == 0x0) {
         if (P2(apdu) == 0x81 || P2(apdu) == 0x88) {
             file_t *file_pin = NULL;
-            if (P2(apdu) == 0x81)
+            if (P2(apdu) == 0x81) {
                 file_pin = file_pin1;
-            else if (P2(apdu) == 0x88)
+            }
+            else if (P2(apdu) == 0x88) {
                 file_pin = file_sopin;
+            }
             if (!file_pin) {
                 return SW_FILE_NOT_FOUND();
             }
             if (!file_has_data(file_pin)) {
                 return SW_REFERENCE_NOT_FOUND();
             }
-            uint8_t pin_len = file_read_uint8(file_get_data(file_pin));
+            uint8_t pin_len = file_read_uint8(file_pin);
             int r = check_pin(file_pin, apdu.data, pin_len);
-            if (r != 0x9000)
+            if (r != 0x9000) {
                 return r;
+            }
             uint8_t mkek[MKEK_SIZE];
             r = load_mkek(mkek); //loads the MKEK with old pin
-            if (r != CCID_OK)
+            if (r != CCID_OK) {
                 return SW_EXEC_ERROR();
+            }
             //encrypt MKEK with new pin
 
             if (P2(apdu) == 0x81) {
-                hash_multi(apdu.data+pin_len, apdu.nc-pin_len, session_pin);
+                hash_multi(apdu.data + pin_len, (uint16_t)(apdu.nc - pin_len), session_pin);
                 has_session_pin = true;
             }
             else if (P2(apdu) == 0x88) {
-                hash_multi(apdu.data+pin_len, apdu.nc-pin_len, session_sopin);
+                hash_multi(apdu.data + pin_len, (uint16_t)(apdu.nc - pin_len), session_sopin);
                 has_session_sopin = true;
             }
             r = store_mkek(mkek);
             release_mkek(mkek);
-            if (r != CCID_OK)
+            if (r != CCID_OK) {
                 return SW_EXEC_ERROR();
+            }
             uint8_t dhash[33];
-            dhash[0] = apdu.nc-pin_len;
-            double_hash_pin(apdu.data+pin_len, apdu.nc-pin_len, dhash+1);
-            flash_write_data_to_file(file_pin, dhash, sizeof(dhash));
+            dhash[0] = (uint8_t)apdu.nc - pin_len;
+            double_hash_pin(apdu.data + pin_len, (uint16_t)(apdu.nc - pin_len), dhash + 1);
+            file_put_data(file_pin, dhash, sizeof(dhash));
             low_flash_available();
             return SW_OK();
         }

src/hsm/cmd_cipher_sym.c

@@ -15,95 +15,694 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "common.h"
+#include "sc_hsm.h"
 #include "mbedtls/aes.h"
 #include "mbedtls/cmac.h"
 #include "mbedtls/hkdf.h"
+#include "mbedtls/chachapoly.h"
+#include "mbedtls/gcm.h"
+//#include "mbedtls/md_wrap.h"
+#include "mbedtls/md.h"
 #include "crypto_utils.h"
-#include "sc_hsm.h"
 #include "kek.h"
+#include "asn1.h"
+#include "oid.h"
+#include "mbedtls/pkcs5.h"
+#include "mbedtls/error.h"
+#include "mbedtls/asn1.h"
+#include "mbedtls/cipher.h"
+#include "mbedtls/oid.h"
+#include "mbedtls/ccm.h"
+
+extern mbedtls_ecp_keypair hd_context;
+extern uint8_t hd_keytype;
+
+/* This is copied from pkcs5.c Mbedtls */
+/** Unfortunately it is declared as static, so I cannot call it. **/
+
+static int pkcs5_parse_pbkdf2_params(const mbedtls_asn1_buf *params,
+                                     mbedtls_asn1_buf *salt, int *iterations,
+                                     uint16_t *keylen, mbedtls_md_type_t *md_type) {
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+    mbedtls_asn1_buf prf_alg_oid;
+    unsigned char *p = params->p;
+    const unsigned char *end = params->p + params->len;
+
+    if (params->tag != (MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE)) {
+        return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_PKCS5_INVALID_FORMAT,
+                                 MBEDTLS_ERR_ASN1_UNEXPECTED_TAG);
+    }
+    /*
+     *  PBKDF2-params ::= SEQUENCE {
+     *    salt              OCTET STRING,
+     *    iterationCount    INTEGER,
+     *    keyLength         INTEGER OPTIONAL
+     *    prf               AlgorithmIdentifier DEFAULT algid-hmacWithSHA1
+     *  }
+     *
+     */
+    if ((ret = mbedtls_asn1_get_tag(&p, end, &salt->len,
+                                    MBEDTLS_ASN1_OCTET_STRING)) != 0) {
+        return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_PKCS5_INVALID_FORMAT, ret);
+    }
+
+    salt->p = p;
+    p += salt->len;
+
+    if ((ret = mbedtls_asn1_get_int(&p, end, iterations)) != 0) {
+        return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_PKCS5_INVALID_FORMAT, ret);
+    }
+
+    if (p == end) {
+        return 0;
+    }
+
+    if ((ret = mbedtls_asn1_get_int(&p, end, (int *)keylen)) != 0) {
+        if (ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG) {
+            return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_PKCS5_INVALID_FORMAT, ret);
+        }
+    }
+
+    if (p == end) {
+        return 0;
+    }
+
+    if ((ret = mbedtls_asn1_get_alg_null(&p, end, &prf_alg_oid)) != 0) {
+        return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_PKCS5_INVALID_FORMAT, ret);
+    }
+
+    if (mbedtls_oid_get_md_hmac(&prf_alg_oid, md_type) != 0) {
+        return MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE;
+    }
+
+    if (p != end) {
+        return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_PKCS5_INVALID_FORMAT,
+                                 MBEDTLS_ERR_ASN1_LENGTH_MISMATCH);
+    }
+
+    return 0;
+}
+
+/* Taken from https://github.com/Mbed-TLS/mbedtls/issues/2335 */
+int mbedtls_ansi_x963_kdf(mbedtls_md_type_t md_type,
+                          uint16_t input_len,
+                          uint8_t *input,
+                          uint16_t shared_info_len,
+                          uint8_t *shared_info,
+                          uint16_t output_len,
+                          uint8_t *output) {
+    mbedtls_md_context_t md_ctx;
+    const mbedtls_md_info_t *md_info = NULL;
+    int hashlen = 0, exit_code = MBEDTLS_ERR_MD_BAD_INPUT_DATA;
+    uint8_t counter_buf[4], tmp_output[64]; //worst case
+
+    mbedtls_md_init(&md_ctx);
+
+    md_info = mbedtls_md_info_from_type(md_type);
+
+    if (md_info == NULL) {
+        return exit_code;
+    }
+
+    if (mbedtls_md_setup(&md_ctx, md_info, 0)) {
+        return exit_code;
+    }
+
+    if (input_len + shared_info_len + 4 >= (1ULL << 61) - 1) {
+        return exit_code;
+    }
+
+    // keydatalen equals output_len
+    hashlen = mbedtls_md_get_size(md_info);
+    if (output_len >= hashlen * ((1ULL << 32) - 1)) {
+        return exit_code;
+    }
+
+    for (int i = 0, counter = 1; i < output_len; counter++) {
+        mbedtls_md_starts(&md_ctx);
+        mbedtls_md_update(&md_ctx, input, input_len);
+
+        //TODO: be careful with architecture little vs. big
+        counter_buf[0] = (uint8_t) ((counter >> 24) & 0xff);
+        counter_buf[1] = (uint8_t) ((counter >> 16) & 0xff);
+        counter_buf[2] = (uint8_t) ((counter >> 8) & 0xff);
+        counter_buf[3] = (uint8_t) ((counter >> 0) & 0xff);
+
+        mbedtls_md_update(&md_ctx, counter_buf, 4);
+
+        if (shared_info_len > 0 && shared_info != NULL) {
+            mbedtls_md_update(&md_ctx, shared_info, shared_info_len);
+        }
+        mbedtls_md_finish(&md_ctx, tmp_output);
+        memcpy(&output[i], tmp_output, (output_len - i < hashlen) ? output_len - i : hashlen);
+        i += hashlen;
+    }
+    mbedtls_md_free(&md_ctx);
+    return 0;
+}
 
 int cmd_cipher_sym() {
-    int key_id = P1(apdu);
-    int algo = P2(apdu);
-    if (!isUserAuthenticated)
+    uint8_t key_id = P1(apdu), algo = P2(apdu);
+    if (!isUserAuthenticated) {
         return SW_SECURITY_STATUS_NOT_SATISFIED();
-    file_t *ef = search_dynamic_file((KEY_PREFIX << 8) | key_id);
-    if (!ef)
-        return SW_FILE_NOT_FOUND();
-    if (key_has_purpose(ef, algo) == false)
-        return SW_CONDITIONS_NOT_SATISFIED();
-    if ((apdu.nc % 16) != 0) {
-        return SW_WRONG_LENGTH();
     }
-    if (wait_button_pressed() == true) // timeout
+    if (wait_button_pressed() == true) { // timeout
         return SW_SECURE_MESSAGE_EXEC_ERROR();
-    int key_size = file_get_size(ef);
-    uint8_t kdata[32]; //maximum AES key size
+    }
+    file_t *ef = search_file((KEY_PREFIX << 8) | key_id);
+    if (hd_keytype == 0) {
+        if (!ef) {
+            return SW_FILE_NOT_FOUND();
+        }
+        if (key_has_purpose(ef, algo) == false) {
+            return SW_CONDITIONS_NOT_SATISFIED();
+        }
+    }
+    uint16_t key_size = file_get_size(ef);
+    uint8_t kdata[64]; //maximum AES key size
     memcpy(kdata, file_get_data(ef), key_size);
-    if (mkek_decrypt(kdata, key_size) != 0) {
+    if (hd_keytype == 0 && mkek_decrypt(kdata, key_size) != 0) {
         return SW_EXEC_ERROR();
     }
     if (algo == ALGO_AES_CBC_ENCRYPT || algo == ALGO_AES_CBC_DECRYPT) {
+        if ((apdu.nc % 16) != 0) {
+            return SW_WRONG_LENGTH();
+        }
         mbedtls_aes_context aes;
         mbedtls_aes_init(&aes);
         uint8_t tmp_iv[IV_SIZE];
         memset(tmp_iv, 0, sizeof(tmp_iv));
         if (algo == ALGO_AES_CBC_ENCRYPT) {
-            int r = mbedtls_aes_setkey_enc(&aes, kdata, key_size*8);
-            if (r != 0) {
-                mbedtls_platform_zeroize(kdata, sizeof(kdata));
-                mbedtls_aes_free(&aes);
-                return SW_EXEC_ERROR();
-            }
-            r = mbedtls_aes_crypt_cbc(&aes, MBEDTLS_AES_ENCRYPT, apdu.nc, tmp_iv, apdu.data, res_APDU);
+            int r = mbedtls_aes_setkey_enc(&aes, kdata, key_size * 8);
             mbedtls_platform_zeroize(kdata, sizeof(kdata));
             if (r != 0) {
                 mbedtls_aes_free(&aes);
                 return SW_EXEC_ERROR();
             }
+            r = mbedtls_aes_crypt_cbc(&aes,
+                                      MBEDTLS_AES_ENCRYPT,
+                                      apdu.nc,
+                                      tmp_iv,
+                                      apdu.data,
+                                      res_APDU);
+            mbedtls_aes_free(&aes);
+            if (r != 0) {
+                return SW_EXEC_ERROR();
+            }
         }
         else if (algo == ALGO_AES_CBC_DECRYPT) {
-            int r = mbedtls_aes_setkey_dec(&aes, kdata, key_size*8);
+            int r = mbedtls_aes_setkey_dec(&aes, kdata, key_size * 8);
             if (r != 0) {
-                mbedtls_platform_zeroize(kdata, sizeof(kdata));
                 mbedtls_aes_free(&aes);
                 return SW_EXEC_ERROR();
             }
-            r = mbedtls_aes_crypt_cbc(&aes, MBEDTLS_AES_DECRYPT, apdu.nc, tmp_iv, apdu.data, res_APDU);
-            mbedtls_platform_zeroize(kdata, sizeof(kdata));
+            r = mbedtls_aes_crypt_cbc(&aes,
+                                      MBEDTLS_AES_DECRYPT,
+                                      apdu.nc,
+                                      tmp_iv,
+                                      apdu.data,
+                                      res_APDU);
+            mbedtls_aes_free(&aes);
             if (r != 0) {
-                mbedtls_aes_free(&aes);
                 return SW_EXEC_ERROR();
             }
         }
-        res_APDU_size = apdu.nc;
-        mbedtls_aes_free(&aes);
+        res_APDU_size = (uint16_t)apdu.nc;
     }
     else if (algo == ALGO_AES_CMAC) {
         const mbedtls_cipher_info_t *cipher_info;
-        if (key_size == 16)
+        if (key_size == 16) {
             cipher_info = mbedtls_cipher_info_from_type(MBEDTLS_CIPHER_AES_128_ECB);
-        else if (key_size == 24)
+        }
+        else if (key_size == 24) {
             cipher_info = mbedtls_cipher_info_from_type(MBEDTLS_CIPHER_AES_192_ECB);
-        else if (key_size == 32)
+        }
+        else if (key_size == 32) {
             cipher_info = mbedtls_cipher_info_from_type(MBEDTLS_CIPHER_AES_256_ECB);
+        }
         else {
             mbedtls_platform_zeroize(kdata, sizeof(kdata));
             return SW_WRONG_DATA();
         }
-        int r = mbedtls_cipher_cmac(cipher_info, kdata, key_size*8, apdu.data, apdu.nc, res_APDU);
+        int r = mbedtls_cipher_cmac(cipher_info, kdata, key_size * 8, apdu.data, apdu.nc, res_APDU);
         mbedtls_platform_zeroize(kdata, sizeof(kdata));
-        if (r != 0)
+        if (r != 0) {
             return SW_EXEC_ERROR();
+        }
         res_APDU_size = 16;
     }
     else if (algo == ALGO_AES_DERIVE) {
-        int r = mbedtls_hkdf(mbedtls_md_info_from_type(MBEDTLS_MD_SHA256), NULL, 0, file_get_data(ef), key_size, apdu.data, apdu.nc, res_APDU, apdu.nc);
+        int r = mbedtls_hkdf(mbedtls_md_info_from_type(MBEDTLS_MD_SHA256),
+                             NULL,
+                             0,
+                             kdata,
+                             key_size,
+                             apdu.data,
+                             apdu.nc,
+                             res_APDU,
+                             apdu.nc);
         mbedtls_platform_zeroize(kdata, sizeof(kdata));
-        if (r != 0)
+        if (r != 0) {
             return SW_EXEC_ERROR();
-        res_APDU_size = apdu.nc;
+        }
+        res_APDU_size = (uint16_t)apdu.nc;
+    }
+    else if (algo == ALGO_EXT_CIPHER_ENCRYPT || algo == ALGO_EXT_CIPHER_DECRYPT) {
+        asn1_ctx_t ctxi, oid = {0}, enc = {0}, iv = {0}, aad = {0};
+        asn1_ctx_init(apdu.data, (uint16_t)apdu.nc, &ctxi);
+        if (!asn1_find_tag(&ctxi, 0x6, &oid) || asn1_len(&oid) == 0) {
+            mbedtls_platform_zeroize(kdata, sizeof(kdata));
+            return SW_WRONG_DATA();
+        }
+        asn1_find_tag(&ctxi, 0x81, &enc);
+        asn1_find_tag(&ctxi, 0x82, &iv);
+        asn1_find_tag(&ctxi, 0x83, &aad);
+        uint8_t tmp_iv[16];
+        memset(tmp_iv, 0, sizeof(tmp_iv));
+        if (memcmp(oid.data, OID_CHACHA20_POLY1305, oid.len) == 0) {
+            if (algo == ALGO_EXT_CIPHER_DECRYPT && enc.len < 16) {
+                mbedtls_platform_zeroize(kdata, sizeof(kdata));
+                return SW_WRONG_DATA();
+            }
+            int r = 0;
+            mbedtls_chachapoly_context ctx;
+            mbedtls_chachapoly_init(&ctx);
+            mbedtls_chachapoly_setkey(&ctx, kdata);
+            if (algo == ALGO_EXT_CIPHER_ENCRYPT) {
+                r = mbedtls_chachapoly_encrypt_and_tag(&ctx,
+                                                       enc.len,
+                                                       asn1_len(&iv) > 0 ? iv.data : tmp_iv,
+                                                       aad.data,
+                                                       aad.len,
+                                                       enc.data,
+                                                       res_APDU,
+                                                       res_APDU + enc.len);
+            }
+            else if (algo == ALGO_EXT_CIPHER_DECRYPT) {
+                r = mbedtls_chachapoly_auth_decrypt(&ctx,
+                                                    enc.len - 16,
+                                                    asn1_len(&iv) > 0 ? iv.data : tmp_iv,
+                                                    aad.data,
+                                                    aad.len,
+                                                    enc.data + enc.len - 16,
+                                                    enc.data,
+                                                    res_APDU);
+            }
+            mbedtls_platform_zeroize(kdata, sizeof(kdata));
+            mbedtls_chachapoly_free(&ctx);
+            if (r != 0) {
+                if (r == MBEDTLS_ERR_CHACHAPOLY_AUTH_FAILED) {
+                    return SW_WRONG_DATA();
+                }
+                return SW_EXEC_ERROR();
+            }
+            if (algo == ALGO_EXT_CIPHER_ENCRYPT) {
+                res_APDU_size = enc.len + 16;
+            }
+            else if (algo == ALGO_EXT_CIPHER_DECRYPT) {
+                res_APDU_size = enc.len - 16;
+            }
+        }
+        else if (memcmp(oid.data, OID_DIGEST, 7) == 0) {
+            const mbedtls_md_info_t *md_info = NULL;
+            if (memcmp(oid.data, OID_HMAC_SHA1, oid.len) == 0) {
+                md_info = mbedtls_md_info_from_type(MBEDTLS_MD_SHA1);
+            }
+            else if (memcmp(oid.data, OID_HMAC_SHA224, oid.len) == 0) {
+                md_info = mbedtls_md_info_from_type(MBEDTLS_MD_SHA224);
+            }
+            else if (memcmp(oid.data, OID_HMAC_SHA256, oid.len) == 0) {
+                md_info = mbedtls_md_info_from_type(MBEDTLS_MD_SHA256);
+            }
+            else if (memcmp(oid.data, OID_HMAC_SHA384, oid.len) == 0) {
+                md_info = mbedtls_md_info_from_type(MBEDTLS_MD_SHA384);
+            }
+            else if (memcmp(oid.data, OID_HMAC_SHA512, oid.len) == 0) {
+                md_info = mbedtls_md_info_from_type(MBEDTLS_MD_SHA512);
+            }
+            if (md_info == NULL) {
+                return SW_WRONG_DATA();
+            }
+            int r = mbedtls_md_hmac(md_info, kdata, key_size, enc.data, enc.len, res_APDU);
+            mbedtls_platform_zeroize(kdata, sizeof(kdata));
+            if (r != 0) {
+                return SW_EXEC_ERROR();
+            }
+            res_APDU_size = mbedtls_md_get_size(md_info);
+        }
+        else if (memcmp(oid.data, OID_HKDF_SHA256,
+                        oid.len) == 0 ||
+                 memcmp(oid.data, OID_HKDF_SHA384,
+                        oid.len) == 0 || memcmp(oid.data, OID_HKDF_SHA512, oid.len) == 0) {
+            const mbedtls_md_info_t *md_info = NULL;
+            if (memcmp(oid.data, OID_HKDF_SHA256, oid.len) == 0) {
+                md_info = mbedtls_md_info_from_type(MBEDTLS_MD_SHA256);
+            }
+            else if (memcmp(oid.data, OID_HKDF_SHA384, oid.len) == 0) {
+                md_info = mbedtls_md_info_from_type(MBEDTLS_MD_SHA384);
+            }
+            else if (memcmp(oid.data, OID_HKDF_SHA512, oid.len) == 0) {
+                md_info = mbedtls_md_info_from_type(MBEDTLS_MD_SHA512);
+            }
+            int r = mbedtls_hkdf(md_info,
+                                 iv.data,
+                                 iv.len,
+                                 kdata,
+                                 key_size,
+                                 enc.data,
+                                 enc.len,
+                                 res_APDU,
+                                 apdu.ne > 0 &&
+                                 apdu.ne < 65536 ? apdu.ne : mbedtls_md_get_size(md_info));
+            mbedtls_platform_zeroize(kdata, sizeof(kdata));
+            if (r != 0) {
+                return SW_EXEC_ERROR();
+            }
+            res_APDU_size = apdu.ne > 0 && apdu.ne < 65536 ? (uint16_t)apdu.ne : (uint16_t)mbedtls_md_get_size(md_info);
+        }
+        else if (memcmp(oid.data, OID_PKCS5_PBKDF2, oid.len) == 0) {
+            int iterations = 0;
+            uint16_t keylen = 0;
+            mbedtls_asn1_buf salt,
+                             params =
+            { .p = enc.data, .len = enc.len, .tag = (MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE) };
+            mbedtls_md_type_t md_type = MBEDTLS_MD_SHA1;
+
+            int r = pkcs5_parse_pbkdf2_params(&params, &salt, &iterations, &keylen, &md_type);
+            if (r != 0) {
+                mbedtls_platform_zeroize(kdata, sizeof(kdata));
+                return SW_WRONG_DATA();
+            }
+
+            r = mbedtls_pkcs5_pbkdf2_hmac_ext(md_type,
+                                              kdata,
+                                              key_size,
+                                              salt.p,
+                                              salt.len,
+                                              iterations,
+                                              keylen ? keylen : (apdu.ne > 0 &&
+                                                                 apdu.ne < 65536 ? apdu.ne : 32),
+                                              res_APDU);
+            mbedtls_platform_zeroize(kdata, sizeof(kdata));
+            if (r != 0) {
+                return SW_EXEC_ERROR();
+            }
+            res_APDU_size = keylen ? keylen : (apdu.ne > 0 && apdu.ne < 65536 ? (uint16_t)apdu.ne : 32);
+        }
+        else if (memcmp(oid.data, OID_PKCS5_PBES2, oid.len) == 0) {
+            size_t olen = 0;
+            mbedtls_asn1_buf params =
+                {.p = aad.data, .len = aad.len, .tag = (MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE)};
+            int r = mbedtls_pkcs5_pbes2_ext(&params,
+                                        algo == ALGO_EXT_CIPHER_ENCRYPT ? MBEDTLS_PKCS5_ENCRYPT : MBEDTLS_PKCS5_DECRYPT,
+                                        kdata,
+                                        key_size,
+                                        enc.data,
+                                        enc.len,
+                                        res_APDU, 4096, &olen);
+            mbedtls_platform_zeroize(kdata, sizeof(kdata));
+            if (r != 0) {
+                return SW_WRONG_DATA();
+            }
+            res_APDU_size = (uint16_t)olen;
+        }
+        else if (memcmp(oid.data, OID_KDF_X963, oid.len) == 0) {
+            mbedtls_md_type_t md_type = MBEDTLS_MD_SHA1;
+            if (memcmp(enc.data, OID_HMAC_SHA1, enc.len) == 0) {
+                md_type = MBEDTLS_MD_SHA1;
+            }
+            else if (memcmp(enc.data, OID_HMAC_SHA224, enc.len) == 0) {
+                md_type = MBEDTLS_MD_SHA224;
+            }
+            else if (memcmp(enc.data, OID_HMAC_SHA256, enc.len) == 0) {
+                md_type = MBEDTLS_MD_SHA256;
+            }
+            else if (memcmp(enc.data, OID_HMAC_SHA384, enc.len) == 0) {
+                md_type = MBEDTLS_MD_SHA384;
+            }
+            else if (memcmp(enc.data, OID_HMAC_SHA512, enc.len) == 0) {
+                md_type = MBEDTLS_MD_SHA512;
+            }
+            int r = mbedtls_ansi_x963_kdf(md_type,
+                                          key_size,
+                                          kdata,
+                                          aad.len,
+                                          aad.data,
+                                          apdu.ne > 0 && apdu.ne < 65536 ? (uint16_t)apdu.ne : 32,
+                                          res_APDU);
+            mbedtls_platform_zeroize(kdata, sizeof(kdata));
+            if (r != 0) {
+                return SW_WRONG_DATA();
+            }
+            res_APDU_size = apdu.ne > 0 && apdu.ne < 65536 ? (uint16_t)apdu.ne : 32;
+        }
+        else if (memcmp(oid.data, OID_NIST_AES, 8) == 0) {
+            if (oid.len != 9) {
+                return SW_WRONG_DATA();
+            }
+            uint8_t aes_algo = oid.data[8],
+                    mode =
+                (algo == ALGO_EXT_CIPHER_ENCRYPT ? MBEDTLS_AES_ENCRYPT : MBEDTLS_AES_DECRYPT);
+            if ((aes_algo >= 0x01 && aes_algo <= 0x09 && key_size != 16) ||
+                (aes_algo >= 0x15 && aes_algo <= 0x1D && key_size != 24) ||
+                (aes_algo >= 0x29 && aes_algo <= 0x31 && key_size != 32)) {
+                return SW_WRONG_DATA();
+            }
+            mbedtls_aes_context ctx;
+            int r = 0;
+            mbedtls_aes_init(&ctx);
+            if (asn1_len(&iv) == 0) {
+                iv.data = tmp_iv;
+                iv.len = sizeof(tmp_iv);
+            }
+            if (aes_algo == 0x01 || aes_algo == 0x15 || aes_algo == 0x29) { /* ECB */
+                if (algo == ALGO_EXT_CIPHER_ENCRYPT) {
+                    r = mbedtls_aes_setkey_enc(&ctx, kdata, key_size * 8);
+                }
+                else if (algo == ALGO_EXT_CIPHER_DECRYPT) {
+                    r = mbedtls_aes_setkey_dec(&ctx, kdata, key_size * 8);
+                }
+                mbedtls_platform_zeroize(kdata, sizeof(kdata));
+                r = mbedtls_aes_crypt_ecb(&ctx, mode, enc.data, res_APDU);
+                mbedtls_aes_free(&ctx);
+                if (r != 0) {
+                    return SW_EXEC_ERROR();
+                }
+                res_APDU_size = MIN(enc.len, 16); // ECB operates with 16-byte blocks
+            }
+            else if (aes_algo == 0x02 || aes_algo == 0x16 || aes_algo == 0x2A) { /* CBC */
+                if (algo == ALGO_EXT_CIPHER_ENCRYPT) {
+                    r = mbedtls_aes_setkey_enc(&ctx, kdata, key_size * 8);
+                }
+                else if (algo == ALGO_EXT_CIPHER_DECRYPT) {
+                    r = mbedtls_aes_setkey_dec(&ctx, kdata, key_size * 8);
+                }
+                if (r != 0) {
+                    return SW_EXEC_ERROR();
+                }
+                mbedtls_platform_zeroize(kdata, sizeof(kdata));
+                r = mbedtls_aes_crypt_cbc(&ctx, mode, enc.len, iv.data, enc.data, res_APDU);
+                mbedtls_aes_free(&ctx);
+                if (r != 0) {
+                    return SW_EXEC_ERROR();
+                }
+                res_APDU_size = enc.len;
+            }
+            else if (aes_algo == 0x03 || aes_algo == 0x17 || aes_algo == 0x2B) { /* OFB */
+                size_t iv_off = 0;
+                r = mbedtls_aes_setkey_enc(&ctx, kdata, key_size * 8);
+                mbedtls_platform_zeroize(kdata, sizeof(kdata));
+                r = mbedtls_aes_crypt_ofb(&ctx, enc.len, &iv_off, iv.data, enc.data, res_APDU);
+                mbedtls_aes_free(&ctx);
+                if (r != 0) {
+                    return SW_EXEC_ERROR();
+                }
+                res_APDU_size = enc.len;
+            }
+            else if (aes_algo == 0x04 || aes_algo == 0x18 || aes_algo == 0x2C) { /* CFB */
+                size_t iv_off = 0;
+                r = mbedtls_aes_setkey_enc(&ctx, kdata, key_size * 8);
+                mbedtls_platform_zeroize(kdata, sizeof(kdata));
+                r = mbedtls_aes_crypt_cfb128(&ctx, mode, enc.len, &iv_off, iv.data, enc.data, res_APDU);
+                mbedtls_aes_free(&ctx);
+                if (r != 0) {
+                    return SW_EXEC_ERROR();
+                }
+                res_APDU_size = enc.len;
+            }
+            else if (aes_algo == 0x06 || aes_algo == 0x1A || aes_algo == 0x2E) { /* GCM */
+                mbedtls_aes_free(&ctx); // No AES ctx used
+                mbedtls_gcm_context gctx;
+                mbedtls_gcm_init(&gctx);
+                r = mbedtls_gcm_setkey(&gctx, MBEDTLS_CIPHER_ID_AES, kdata, key_size * 8);
+                mbedtls_platform_zeroize(kdata, sizeof(kdata));
+                if (algo == ALGO_EXT_CIPHER_ENCRYPT) {
+                    r = mbedtls_gcm_crypt_and_tag(&gctx,
+                                                  MBEDTLS_GCM_ENCRYPT,
+                                                  enc.len,
+                                                  iv.data,
+                                                  iv.len,
+                                                  aad.data,
+                                                  aad.len,
+                                                  enc.data,
+                                                  res_APDU,
+                                                  16,
+                                                  res_APDU + enc.len);
+                    res_APDU_size = enc.len + 16;
+                }
+                else if (algo == ALGO_EXT_CIPHER_DECRYPT) {
+                    r = mbedtls_gcm_auth_decrypt(&gctx,
+                                                 enc.len - 16,
+                                                 iv.data,
+                                                 iv.len,
+                                                 aad.data,
+                                                 aad.len,
+                                                 enc.data + enc.len - 16,
+                                                 16,
+                                                 enc.data,
+                                                 res_APDU);
+                    res_APDU_size = enc.len - 16;
+                }
+                mbedtls_gcm_free(&gctx);
+                if (r != 0) {
+                    return SW_EXEC_ERROR();
+                }
+            }
+            else if (aes_algo == 0x09 || aes_algo == 0x1D || aes_algo == 0x31) { /* CTR */
+                size_t iv_off = 0;
+                uint8_t stream_block[16];
+                r = mbedtls_aes_setkey_enc(&ctx, kdata, key_size * 8);
+                mbedtls_platform_zeroize(kdata, sizeof(kdata));
+                r = mbedtls_aes_crypt_ctr(&ctx, enc.len, &iv_off, iv.data, stream_block, enc.data, res_APDU);
+                mbedtls_aes_free(&ctx);
+                if (r != 0) {
+                    return SW_EXEC_ERROR();
+                }
+                res_APDU_size = enc.len;
+            }
+            else if (aes_algo == 0x07 || aes_algo == 0x1B || aes_algo == 0x2F) { /* CCM */
+                mbedtls_aes_free(&ctx); // No AES ctx used
+                mbedtls_ccm_context gctx;
+                mbedtls_ccm_init(&gctx);
+                r = mbedtls_ccm_setkey(&gctx, MBEDTLS_CIPHER_ID_AES, kdata, key_size * 8);
+                if (r != 0) {
+                    return SW_EXEC_ERROR();
+                }
+                if (iv.len == 16) {
+                    iv.len = 12;
+                }
+                mbedtls_platform_zeroize(kdata, sizeof(kdata));
+                if (algo == ALGO_EXT_CIPHER_ENCRYPT) {
+                    r = mbedtls_ccm_encrypt_and_tag(&gctx,
+                                                    enc.len,
+                                                    iv.data,
+                                                    iv.len,
+                                                    aad.data,
+                                                    aad.len,
+                                                    enc.data,
+                                                    res_APDU,
+                                                    res_APDU + enc.len,
+                                                    16);
+                    res_APDU_size = enc.len + 16;
+                }
+                else if (algo == ALGO_EXT_CIPHER_DECRYPT) {
+                    r = mbedtls_ccm_auth_decrypt(&gctx,
+                                                 enc.len - 16,
+                                                 iv.data,
+                                                 iv.len,
+                                                 aad.data,
+                                                 aad.len,
+                                                 enc.data,
+                                                 res_APDU,
+                                                 enc.data + enc.len - 16,
+                                                 16);
+                    res_APDU_size = enc.len - 16;
+                }
+                mbedtls_ccm_free(&gctx);
+                if (r != 0) {
+                    return SW_EXEC_ERROR();
+                }
+            }
+        }
+        else if (memcmp(oid.data, OID_IEEE_ALG, 8) == 0) {
+            if (oid.len != 9) {
+                return SW_WRONG_DATA();
+            }
+            uint8_t aes_algo = oid.data[8],
+                    mode =
+                (algo == ALGO_EXT_CIPHER_ENCRYPT ? MBEDTLS_AES_ENCRYPT : MBEDTLS_AES_DECRYPT);
+            int r = 0;
+            memset(tmp_iv, 0, sizeof(tmp_iv));
+            if (asn1_len(&iv) == 0) {
+                iv.data = tmp_iv;
+                iv.len = sizeof(tmp_iv);
+            }
+            if ((aes_algo == 0x01 && key_size != 32) || (aes_algo == 0x02 && key_size != 64)) {
+                return SW_WRONG_DATA();
+            }
+            mbedtls_aes_xts_context ctx;
+            mbedtls_aes_xts_init(&ctx);
+            if (algo == ALGO_EXT_CIPHER_ENCRYPT) {
+                r = mbedtls_aes_xts_setkey_enc(&ctx, kdata, key_size * 8);
+            }
+            else if (algo == ALGO_EXT_CIPHER_DECRYPT) {
+                r = mbedtls_aes_xts_setkey_dec(&ctx, kdata, key_size * 8);
+            }
+            mbedtls_platform_zeroize(kdata, sizeof(kdata));
+            r = mbedtls_aes_crypt_xts(&ctx, mode, enc.len, iv.data, enc.data, res_APDU);
+            mbedtls_aes_xts_free(&ctx);
+            if (r != 0) {
+                return SW_EXEC_ERROR();
+            }
+            res_APDU_size = enc.len;
+        }
+        else if (memcmp(oid.data, OID_HD, 11) == 0) {
+            mbedtls_aes_context ctx;
+            int r = 0;
+            uint8_t mode =
+                (algo == ALGO_EXT_CIPHER_ENCRYPT ? MBEDTLS_AES_ENCRYPT : MBEDTLS_AES_DECRYPT),
+                    secret[64] = { 0 };
+            mbedtls_aes_init(&ctx);
+            if (hd_keytype != 0x3) {
+                return SW_INCORRECT_PARAMS();
+            }
+            key_size = 32;
+            mbedtls_mpi_write_binary(&hd_context.d, kdata, key_size);
+            r = mbedtls_md_hmac(mbedtls_md_info_from_type(MBEDTLS_MD_SHA512),
+                                kdata,
+                                key_size,
+                                aad.data,
+                                aad.len,
+                                secret);
+            mbedtls_platform_zeroize(kdata, sizeof(kdata));
+            if (r != 0) {
+                return SW_EXEC_ERROR();
+            }
+            if (iv.data == tmp_iv || iv.len == 0) {
+                iv.data = secret + 32;
+                iv.len = 16;
+            }
+            if (algo == ALGO_EXT_CIPHER_ENCRYPT) {
+                r = mbedtls_aes_setkey_enc(&ctx, secret, key_size * 8);
+            }
+            else if (algo == ALGO_EXT_CIPHER_DECRYPT) {
+                r = mbedtls_aes_setkey_dec(&ctx, secret, key_size * 8);
+            }
+            if (r != 0) {
+                return SW_EXEC_ERROR();
+            }
+            r = mbedtls_aes_crypt_cbc(&ctx, mode, enc.len, iv.data, enc.data, res_APDU);
+            mbedtls_aes_free(&ctx);
+            if (r != 0) {
+                return SW_EXEC_ERROR();
+            }
+            res_APDU_size = enc.len;
+            mbedtls_ecdsa_free(&hd_context);
+            hd_keytype = 0;
+        }
+        else {
+            return SW_WRONG_DATA();
+        }
     }
     else {
         mbedtls_platform_zeroize(kdata, sizeof(kdata));

src/hsm/cmd_decrypt_asym.c

@@ -15,10 +15,9 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "common.h"
+#include "sc_hsm.h"
 #include "mbedtls/ecdh.h"
 #include "crypto_utils.h"
-#include "sc_hsm.h"
 #include "kek.h"
 #include "files.h"
 #include "asn1.h"
@@ -27,42 +26,51 @@
 #include "oid.h"
 
 int cmd_decrypt_asym() {
-    int key_id = P1(apdu);
+    uint8_t key_id = P1(apdu);
     uint8_t p2 = P2(apdu);
-    if (!isUserAuthenticated)
+    if (!isUserAuthenticated) {
         return SW_SECURITY_STATUS_NOT_SATISFIED();
-    file_t *ef = search_dynamic_file((KEY_PREFIX << 8) | key_id);
-    if (!ef)
+    }
+    file_t *ef = search_file((KEY_PREFIX << 8) | key_id);
+    if (!ef) {
         return SW_FILE_NOT_FOUND();
-    if (get_key_counter(ef) == 0)
+    }
+    if (get_key_counter(ef) == 0) {
         return SW_FILE_FULL();
-    if (key_has_purpose(ef, p2) == false)
+    }
+    if (key_has_purpose(ef, p2) == false) {
         return SW_CONDITIONS_NOT_SATISFIED();
+    }
     if (p2 >= ALGO_RSA_DECRYPT && p2 <= ALGO_RSA_DECRYPT_OEP) {
         mbedtls_rsa_context ctx;
         mbedtls_rsa_init(&ctx);
-        if (p2 == ALGO_RSA_DECRYPT_OEP)
-            mbedtls_rsa_set_padding(&ctx, MBEDTLS_RSA_PKCS_V21, MBEDTLS_MD_NONE);
+        if (p2 == ALGO_RSA_DECRYPT_OEP) {
+            mbedtls_rsa_set_padding(&ctx, MBEDTLS_RSA_PKCS_V21, MBEDTLS_MD_SHA256);
+        }
         int r = load_private_key_rsa(&ctx, ef);
         if (r != CCID_OK) {
             mbedtls_rsa_free(&ctx);
-            if (r == CCID_VERIFICATION_FAILED)
+            if (r == CCID_VERIFICATION_FAILED) {
                 return SW_SECURE_MESSAGE_EXEC_ERROR();
+            }
             return SW_EXEC_ERROR();
         }
-        int key_size = file_get_size(ef);
-        if (apdu.nc < key_size) //needs padding
-            memset(apdu.data+apdu.nc, 0, key_size-apdu.nc);
+        uint16_t key_size = file_get_size(ef);
+        if (apdu.nc < key_size) { //needs padding
+            memset(apdu.data + apdu.nc, 0, key_size - apdu.nc);
+        }
         if (p2 == ALGO_RSA_DECRYPT_PKCS1 || p2 == ALGO_RSA_DECRYPT_OEP) {
             size_t olen = apdu.nc;
             r = mbedtls_rsa_pkcs1_decrypt(&ctx, random_gen, NULL, &olen, apdu.data, res_APDU, 512);
-            if (r == 0)
-                res_APDU_size = olen;
+            if (r == 0) {
+                res_APDU_size = (uint16_t)olen;
+            }
         }
         else {
             r = mbedtls_rsa_private(&ctx, random_gen, NULL, apdu.data, res_APDU);
-            if (r == 0)
+            if (r == 0) {
                 res_APDU_size = key_size;
+            }
         }
         if (r != 0) {
             mbedtls_rsa_free(&ctx);
@@ -72,10 +80,11 @@ int cmd_decrypt_asym() {
     }
     else if (p2 == ALGO_EC_DH || p2 == ALGO_EC_DH_XKEK) {
         mbedtls_ecdh_context ctx;
-        if (wait_button_pressed() == true) //timeout
+        if (wait_button_pressed() == true) { //timeout
             return SW_SECURE_MESSAGE_EXEC_ERROR();
-        int key_size = file_get_size(ef);
-        uint8_t *kdata = (uint8_t *)calloc(1,key_size);
+        }
+        uint16_t key_size = file_get_size(ef);
+        uint8_t *kdata = (uint8_t *) calloc(1, key_size);
         memcpy(kdata, file_get_data(ef), key_size);
         if (mkek_decrypt(kdata, key_size) != 0) {
             mbedtls_platform_zeroize(kdata, key_size);
@@ -92,7 +101,7 @@ int cmd_decrypt_asym() {
             free(kdata);
             return SW_DATA_INVALID();
         }
-        r = mbedtls_mpi_read_binary(&ctx.ctx.mbed_ecdh.d, kdata+1, key_size-1);
+        r = mbedtls_ecp_read_key(gid, (mbedtls_ecdsa_context *)&ctx.ctx.mbed_ecdh, kdata + 1, key_size - 1);
         mbedtls_platform_zeroize(kdata, key_size);
         free(kdata);
         if (r != 0) {
@@ -100,16 +109,20 @@ int cmd_decrypt_asym() {
             return SW_DATA_INVALID();
         }
         r = -1;
-        if (p2 == ALGO_EC_DH)
-            r = mbedtls_ecdh_read_public(&ctx, apdu.data-1, apdu.nc+1);
+        if (p2 == ALGO_EC_DH) {
+            *(apdu.data - 1) = (uint8_t)apdu.nc;
+            r = mbedtls_ecdh_read_public(&ctx, apdu.data - 1, apdu.nc + 1);
+        }
         else if (p2 == ALGO_EC_DH_XKEK) {
-            size_t pub_len = 0;
-            const uint8_t *pub = cvc_get_pub(apdu.data, apdu.nc, &pub_len);
+            uint16_t pub_len = 0;
+            const uint8_t *pub = cvc_get_pub(apdu.data, (uint16_t)apdu.nc, &pub_len);
             if (pub) {
-                size_t t86_len = 0;
+                uint16_t t86_len = 0;
                 const uint8_t *t86 = cvc_get_field(pub, pub_len, &t86_len, 0x86);
+                uint8_t *t86w = (uint8_t *)t86;
                 if (t86) {
-                    r = mbedtls_ecdh_read_public(&ctx, t86-1, t86_len+1);
+                    *(t86w - 1) = (uint8_t)t86_len;
+                    r = mbedtls_ecdh_read_public(&ctx, t86 - 1, t86_len + 1);
                 }
             }
         }
@@ -118,53 +131,67 @@ int cmd_decrypt_asym() {
             return SW_DATA_INVALID();
         }
         size_t olen = 0;
+        // The SmartCard-HSM returns the point result of the DH operation
+        // with a leading '04'
         res_APDU[0] = 0x04;
-        r = mbedtls_ecdh_calc_secret(&ctx, &olen, res_APDU+1, MBEDTLS_ECP_MAX_BYTES, random_gen, NULL);
+        r =
+            mbedtls_ecdh_calc_secret(&ctx, &olen, res_APDU + 1, MBEDTLS_ECP_MAX_BYTES, random_gen,
+                                     NULL);
+        mbedtls_ecdh_free(&ctx);
         if (r != 0) {
-            mbedtls_ecdh_free(&ctx);
             return SW_EXEC_ERROR();
         }
-        if (p2 == ALGO_EC_DH)
-            res_APDU_size = olen+1;
+        if (p2 == ALGO_EC_DH) {
+            res_APDU_size = (uint16_t)(olen + 1);
+        }
         else {
             res_APDU_size = 0;
-            size_t ext_len = 0;
+            uint16_t ext_len = 0;
             const uint8_t *ext = NULL;
-            if ((ext = cvc_get_ext(apdu.data, apdu.nc, &ext_len)) == NULL)
+            if ((ext = cvc_get_ext(apdu.data, (uint16_t)apdu.nc, &ext_len)) == NULL) {
                 return SW_WRONG_DATA();
-            uint8_t *p = NULL, *tag_data = NULL, *kdom_uid = NULL;
+            }
+            uint8_t *p = NULL;
             uint16_t tag = 0;
-            size_t tag_len = 0, kdom_uid_len = 0;
-            while (walk_tlv(ext, ext_len, &p, &tag, &tag_len, &tag_data)) {
+            asn1_ctx_t ctxi, ctxo = { 0 }, kdom_uid = { 0 };
+            asn1_ctx_init((uint8_t *)ext, ext_len, &ctxi);
+            while (walk_tlv(&ctxi, &p, &tag, &ctxo.len, &ctxo.data)) {
                 if (tag == 0x73) {
-                    size_t oid_len = 0;
-                    uint8_t *oid_data = NULL;
-                    if (asn1_find_tag(tag_data, tag_len, 0x6, &oid_len, &oid_data) == true && oid_len == strlen(OID_ID_KEY_DOMAIN_UID) && memcmp(oid_data, OID_ID_KEY_DOMAIN_UID, strlen(OID_ID_KEY_DOMAIN_UID)) == 0) {
-                        if (asn1_find_tag(tag_data, tag_len, 0x80, &kdom_uid_len, &kdom_uid) == false)
+                    asn1_ctx_t oid = {0};
+                    if (asn1_find_tag(&ctxo, 0x6, &oid) == true &&
+                        oid.len == strlen(OID_ID_KEY_DOMAIN_UID) &&
+                        memcmp(oid.data, OID_ID_KEY_DOMAIN_UID,
+                               strlen(OID_ID_KEY_DOMAIN_UID)) == 0) {
+                        if (asn1_find_tag(&ctxo, 0x80, &kdom_uid) == false) {
                             return SW_WRONG_DATA();
+                        }
                         break;
                     }
                 }
             }
-            if (kdom_uid_len == 0 || kdom_uid == NULL)
+            if (asn1_len(&kdom_uid) == 0) {
                 return SW_WRONG_DATA();
-            for (int n = 0; n < MAX_KEY_DOMAINS; n++) {
-                file_t *tf = search_dynamic_file(EF_XKEK+n);
+            }
+            for (uint8_t n = 0; n < MAX_KEY_DOMAINS; n++) {
+                file_t *tf = search_file(EF_XKEK + n);
                 if (tf) {
-                    if (file_get_size(tf) == kdom_uid_len && memcmp(file_get_data(tf), kdom_uid, kdom_uid_len) == 0) {
-                        file_new(EF_DKEK+n);
-                        if (store_dkek_key(n, res_APDU+1) != CCID_OK)
+                    if (file_get_size(tf) == kdom_uid.len &&
+                        memcmp(file_get_data(tf), kdom_uid.data, kdom_uid.len) == 0) {
+                        file_new(EF_DKEK + n);
+                        if (store_dkek_key(n, res_APDU + 1) != CCID_OK) {
                             return SW_EXEC_ERROR();
+                        }
+                        mbedtls_platform_zeroize(res_APDU, 32);
                         return SW_OK();
                     }
                 }
             }
             return SW_REFERENCE_NOT_FOUND();
         }
-        mbedtls_ecdh_free(&ctx);
     }
-    else
+    else {
         return SW_WRONG_P1P2();
+    }
     decrement_key_counter(ef);
     return SW_OK();
 }

src/hsm/cmd_delete_file.c

@@ -19,22 +19,27 @@
 
 int cmd_delete_file() {
     file_t *ef = NULL;
-    if (!isUserAuthenticated)
+    if (!isUserAuthenticated) {
         return SW_SECURITY_STATUS_NOT_SATISFIED();
+    }
 
     if (apdu.nc == 0) {
         ef = currentEF;
-        if (!(ef = search_dynamic_file(ef->fid)))
+        if (!(ef = search_file(ef->fid))) {
             return SW_FILE_NOT_FOUND();
+        }
     }
     else {
         uint16_t fid = (apdu.data[0] << 8) | apdu.data[1];
-        if (!(ef = search_dynamic_file(fid)))
+        if (!(ef = search_file(fid))) {
             return SW_FILE_NOT_FOUND();
+        }
     }
-    if (!authenticate_action(ef, ACL_OP_DELETE_SELF))
+    if (!authenticate_action(ef, ACL_OP_DELETE_SELF)) {
         return SW_SECURITY_STATUS_NOT_SATISFIED();
-    if (delete_file(ef) != CCID_OK)
+    }
+    if (delete_file(ef) != CCID_OK) {
         return SW_EXEC_ERROR();
+    }
     return SW_OK();
 }

src/hsm/cmd_derive_asym.c

@@ -15,88 +15,87 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "common.h"
+#include "sc_hsm.h"
 #include "mbedtls/ecdsa.h"
 #include "crypto_utils.h"
-#include "sc_hsm.h"
-
+#include "cvc.h"
 
 #define MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED -0x006E
-#define MOD_ADD( N )                                                    \
-    while( mbedtls_mpi_cmp_mpi( &(N), &grp->P ) >= 0 )                  \
-        MBEDTLS_MPI_CHK( mbedtls_mpi_sub_abs( &(N), &(N), &grp->P ) )
-static inline int mbedtls_mpi_add_mod( const mbedtls_ecp_group *grp,
-                                       mbedtls_mpi *X,
-                                       const mbedtls_mpi *A,
-                                       const mbedtls_mpi *B )
-{
+#define MOD_ADD(N)                                                    \
+    while (mbedtls_mpi_cmp_mpi(&(N), &grp->P) >= 0)                  \
+    MBEDTLS_MPI_CHK(mbedtls_mpi_sub_abs(&(N), &(N), &grp->P))
+static inline int mbedtls_mpi_add_mod(const mbedtls_ecp_group *grp,
+                                      mbedtls_mpi *X,
+                                      const mbedtls_mpi *A,
+                                      const mbedtls_mpi *B) {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( X, A, B ) );
-    MOD_ADD( *X );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_add_mpi(X, A, B));
+    MOD_ADD(*X);
 cleanup:
-    return( ret );
+    return ret;
 }
 
 int cmd_derive_asym() {
     uint8_t key_id = P1(apdu);
     uint8_t dest_id = P2(apdu);
     file_t *fkey;
-    if (!isUserAuthenticated)
+    if (!isUserAuthenticated) {
         return SW_SECURITY_STATUS_NOT_SATISFIED();
-    if (!(fkey = search_dynamic_file((KEY_PREFIX << 8) | key_id)) || !fkey->data || file_get_size(fkey) == 0)
+    }
+    if (!(fkey = search_file((KEY_PREFIX << 8) | key_id)) || !file_has_data(fkey)) {
         return SW_FILE_NOT_FOUND();
-    if (key_has_purpose(fkey, ALGO_EC_DERIVE) == false)
+    }
+    if (key_has_purpose(fkey, ALGO_EC_DERIVE) == false) {
         return SW_CONDITIONS_NOT_SATISFIED();
-    if (apdu.nc == 0)
+    }
+    if (apdu.nc == 0) {
         return SW_WRONG_LENGTH();
+    }
     if (apdu.data[0] == ALGO_EC_DERIVE) {
-        mbedtls_ecdsa_context ctx;
-        mbedtls_ecdsa_init(&ctx);
+        mbedtls_ecp_keypair ctx;
+        mbedtls_ecp_keypair_init(&ctx);
 
         int r;
-        r = load_private_key_ecdsa(&ctx, fkey);
+        r = load_private_key_ec(&ctx, fkey);
         if (r != CCID_OK) {
-            mbedtls_ecdsa_free(&ctx);
-            if (r == CCID_VERIFICATION_FAILED)
+            mbedtls_ecp_keypair_free(&ctx);
+            if (r == CCID_VERIFICATION_FAILED) {
                 return SW_SECURE_MESSAGE_EXEC_ERROR();
+            }
             return SW_EXEC_ERROR();
         }
         mbedtls_mpi a, nd;
         mbedtls_mpi_init(&a);
         mbedtls_mpi_init(&nd);
-        r = mbedtls_mpi_read_binary(&a, apdu.data+1, apdu.nc-1);
+        r = mbedtls_mpi_read_binary(&a, apdu.data + 1, apdu.nc - 1);
         if (r != 0) {
-            mbedtls_ecdsa_free(&ctx);
+            mbedtls_ecp_keypair_free(&ctx);
             mbedtls_mpi_free(&a);
             mbedtls_mpi_free(&nd);
             return SW_DATA_INVALID();
         }
         r = mbedtls_mpi_add_mod(&ctx.grp, &nd, &ctx.d, &a);
+        mbedtls_mpi_free(&a);
         if (r != 0) {
-            mbedtls_ecdsa_free(&ctx);
-            mbedtls_mpi_free(&a);
+            mbedtls_ecp_keypair_free(&ctx);
             mbedtls_mpi_free(&nd);
             return SW_EXEC_ERROR();
         }
         r = mbedtls_mpi_copy(&ctx.d, &nd);
-        if (r != 0) {
-            mbedtls_ecdsa_free(&ctx);
-            mbedtls_mpi_free(&a);
-            mbedtls_mpi_free(&nd);
-            return SW_EXEC_ERROR();
-        }
-        r = store_keys(&ctx, HSM_KEY_EC, dest_id);
-        if (r != CCID_OK) {
-            mbedtls_ecdsa_free(&ctx);
-            mbedtls_mpi_free(&a);
-            mbedtls_mpi_free(&nd);
-            return SW_EXEC_ERROR();
-        }
-        mbedtls_ecdsa_free(&ctx);
-        mbedtls_mpi_free(&a);
         mbedtls_mpi_free(&nd);
+        if (r != 0) {
+            mbedtls_ecp_keypair_free(&ctx);
+            return SW_EXEC_ERROR();
+        }
+        r = store_keys(&ctx, PICO_KEYS_KEY_EC, dest_id);
+        if (r != CCID_OK) {
+            mbedtls_ecp_keypair_free(&ctx);
+            return SW_EXEC_ERROR();
+        }
+        mbedtls_ecp_keypair_free(&ctx);
     }
-    else
+    else {
         return SW_WRONG_DATA();
+    }
     return SW_OK();
 }

src/hsm/cmd_external_authenticate.c

@@ -25,28 +25,41 @@ extern uint8_t challenge[256];
 extern uint8_t challenge_len;
 
 int cmd_external_authenticate() {
-    if (P1(apdu) != 0x0 || P2(apdu) != 0x0)
+    if (P1(apdu) != 0x0 || P2(apdu) != 0x0) {
         return SW_INCORRECT_P1P2();
-    if (ef_puk_aut == NULL)
+    }
+    if (ef_puk_aut == NULL) {
         return SW_REFERENCE_NOT_FOUND();
-    if (apdu.nc == 0)
+    }
+    if (apdu.nc == 0) {
         return SW_WRONG_LENGTH();
-    file_t *ef_puk = search_by_fid(EF_PUKAUT, NULL, SPECIFY_EF);
-    if (!ef_puk || !ef_puk->data || file_get_size(ef_puk) == 0)
+    }
+    file_t *ef_puk = search_file(EF_PUKAUT);
+    if (!file_has_data(ef_puk)) {
         return SW_FILE_NOT_FOUND();
+    }
+    puk_status[ef_puk_aut->fid & (MAX_PUK - 1)] = 0;
     uint8_t *puk_data = file_get_data(ef_puk);
-    uint8_t *input = (uint8_t *)calloc(dev_name_len+challenge_len, sizeof(uint8_t)), hash[32];
+    uint8_t *input = (uint8_t *) calloc(dev_name_len + challenge_len, sizeof(uint8_t)), hash[32];
     memcpy(input, dev_name, dev_name_len);
-    memcpy(input+dev_name_len, challenge, challenge_len);
-    hash256(input, dev_name_len+challenge_len, hash);
-    int r = puk_verify(apdu.data, apdu.nc, hash, 32, file_get_data(ef_puk_aut), file_get_size(ef_puk_aut));
+    memcpy(input + dev_name_len, challenge, challenge_len);
+    hash256(input, dev_name_len + challenge_len, hash);
+    int r =
+        puk_verify(apdu.data,
+                   (uint16_t)apdu.nc,
+                   hash,
+                   32,
+                   file_get_data(ef_puk_aut),
+                   file_get_size(ef_puk_aut));
     free(input);
-    if (r != 0)
+    if (r != 0) {
         return SW_CONDITIONS_NOT_SATISFIED();
-    puk_status[ef_puk_aut->fid & (MAX_PUK-1)] = 1;
+    }
+    puk_status[ef_puk_aut->fid & (MAX_PUK - 1)] = 1;
     uint8_t auts = 0;
-    for (int i = 0; i < puk_data[0]; i++)
+    for (int i = 0; i < puk_data[0]; i++) {
         auts += puk_status[i];
+    }
     if (auts >= puk_data[2]) {
         isUserAuthenticated = true;
     }

src/hsm/cmd_extras.c

@@ -16,17 +16,40 @@
  */
 
 #include "sc_hsm.h"
+#include "mbedtls/ecdh.h"
+#if !defined(ENABLE_EMULATION) && !defined(ESP_PLATFORM)
 #include "hardware/rtc.h"
+#else
+#include <sys/time.h>
+#include <time.h>
+#endif
 #include "files.h"
+#include "random.h"
+#include "kek.h"
+#include "mbedtls/hkdf.h"
+#include "mbedtls/chachapoly.h"
 
 int cmd_extras() {
-    if (P2(apdu) != 0x0)
-        return SW_INCORRECT_P1P2();
+#ifndef ENABLE_EMULATION
+    // Only allow change PHY without PIN
+    if (!isUserAuthenticated && P1(apdu) != 0x1B) {
+        return SW_SECURITY_STATUS_NOT_SATISFIED();
+    }
+#endif
+    //check button (if enabled)
+    if (wait_button_pressed() == true) {
+        return SW_SECURE_MESSAGE_EXEC_ERROR();
+    }
     if (P1(apdu) == 0xA) { //datetime operations
+        if (P2(apdu) != 0x0) {
+            return SW_INCORRECT_P1P2();
+        }
         if (apdu.nc == 0) {
+#if !defined(ENABLE_EMULATION) && !defined(ESP_PLATFORM)
             datetime_t dt;
-            if (!rtc_get_datetime(&dt))
+            if (!rtc_get_datetime(&dt)) {
                 return SW_EXEC_ERROR();
+            }
             res_APDU[res_APDU_size++] = dt.year >> 8;
             res_APDU[res_APDU_size++] = dt.year & 0xff;
             res_APDU[res_APDU_size++] = dt.month;
@@ -35,10 +58,26 @@ int cmd_extras() {
             res_APDU[res_APDU_size++] = dt.hour;
             res_APDU[res_APDU_size++] = dt.min;
             res_APDU[res_APDU_size++] = dt.sec;
+#else
+            struct timeval tv;
+            struct tm *tm;
+            gettimeofday(&tv, NULL);
+            tm = localtime(&tv.tv_sec);
+            res_APDU[res_APDU_size++] = (tm->tm_year + 1900) >> 8;
+            res_APDU[res_APDU_size++] = (tm->tm_year + 1900) & 0xff;
+            res_APDU[res_APDU_size++] = tm->tm_mon;
+            res_APDU[res_APDU_size++] = tm->tm_mday;
+            res_APDU[res_APDU_size++] = tm->tm_wday;
+            res_APDU[res_APDU_size++] = tm->tm_hour;
+            res_APDU[res_APDU_size++] = tm->tm_min;
+            res_APDU[res_APDU_size++] = tm->tm_sec;
+#endif
         }
         else {
-            if (apdu.nc != 8)
+            if (apdu.nc != 8) {
                 return SW_WRONG_LENGTH();
+            }
+#if !defined(ENABLE_EMULATION) && !defined(ESP_PLATFORM)
             datetime_t dt;
             dt.year = (apdu.data[0] << 8) | (apdu.data[1]);
             dt.month = apdu.data[2];
@@ -47,13 +86,31 @@ int cmd_extras() {
             dt.hour = apdu.data[5];
             dt.min = apdu.data[6];
             dt.sec = apdu.data[7];
-            if (!rtc_set_datetime(&dt))
+            if (!rtc_set_datetime(&dt)) {
                 return SW_WRONG_DATA();
+            }
+#else
+            struct tm tm;
+            struct timeval tv;
+            tm.tm_year = ((apdu.data[0] << 8) | (apdu.data[1])) - 1900;
+            tm.tm_mon = apdu.data[2];
+            tm.tm_mday = apdu.data[3];
+            tm.tm_wday = apdu.data[4];
+            tm.tm_hour = apdu.data[5];
+            tm.tm_min = apdu.data[6];
+            tm.tm_sec = apdu.data[7];
+            tv.tv_sec = mktime(&tm);
+            settimeofday(&tv, NULL);
+#endif
         }
     }
-    else if (P1(apdu) == 0x6) { //dynamic options
-        if (apdu.nc > sizeof(uint8_t))
+    else if (P1(apdu) == 0x6) {   //dynamic options
+        if (P2(apdu) != 0x0) {
+            return SW_INCORRECT_P1P2();
+        }
+        if (apdu.nc > sizeof(uint8_t)) {
             return SW_WRONG_LENGTH();
+        }
         uint16_t opts = get_device_options();
         if (apdu.nc == 0) {
             res_APDU[res_APDU_size++] = opts >> 8;
@@ -61,12 +118,176 @@ int cmd_extras() {
         }
         else {
             uint8_t newopts[] = { apdu.data[0], (opts & 0xff) };
-            file_t *tf = search_by_fid(EF_DEVOPS, NULL, SPECIFY_EF);
-            flash_write_data_to_file(tf, newopts, sizeof(newopts));
+            file_t *tf = search_file(EF_DEVOPS);
+            file_put_data(tf, newopts, sizeof(newopts));
             low_flash_available();
         }
     }
-    else
+    else if (P1(apdu) == 0x3A) {   // secure lock
+        if (apdu.nc == 0) {
+            return SW_WRONG_LENGTH();
+        }
+        if (P2(apdu) == 0x01) { // Key Agreement
+            mbedtls_ecdh_context hkey;
+            mbedtls_ecdh_init(&hkey);
+            mbedtls_ecdh_setup(&hkey, MBEDTLS_ECP_DP_SECP256R1);
+            int ret = mbedtls_ecdh_gen_public(&hkey.ctx.mbed_ecdh.grp,
+                                              &hkey.ctx.mbed_ecdh.d,
+                                              &hkey.ctx.mbed_ecdh.Q,
+                                              random_gen,
+                                              NULL);
+            mbedtls_mpi_lset(&hkey.ctx.mbed_ecdh.Qp.Z, 1);
+            ret = mbedtls_ecp_point_read_binary(&hkey.ctx.mbed_ecdh.grp,
+                                                &hkey.ctx.mbed_ecdh.Qp,
+                                                apdu.data,
+                                                apdu.nc);
+            if (ret != 0) {
+                mbedtls_ecdh_free(&hkey);
+                return SW_WRONG_DATA();
+            }
+            memcpy(mse.Qpt, apdu.data, sizeof(mse.Qpt));
+
+            uint8_t buf[MBEDTLS_ECP_MAX_BYTES];
+            size_t olen = 0;
+            ret = mbedtls_ecdh_calc_secret(&hkey,
+                                           &olen,
+                                           buf,
+                                           MBEDTLS_ECP_MAX_BYTES,
+                                           random_gen,
+                                           NULL);
+            if (ret != 0) {
+                mbedtls_ecdh_free(&hkey);
+                mbedtls_platform_zeroize(buf, sizeof(buf));
+                return SW_WRONG_DATA();
+            }
+            ret = mbedtls_hkdf(mbedtls_md_info_from_type(MBEDTLS_MD_SHA256),
+                               NULL,
+                               0,
+                               buf,
+                               olen,
+                               mse.Qpt,
+                               sizeof(mse.Qpt),
+                               mse.key_enc,
+                               sizeof(mse.key_enc));
+            mbedtls_platform_zeroize(buf, sizeof(buf));
+            if (ret != 0) {
+                mbedtls_ecdh_free(&hkey);
+                return SW_EXEC_ERROR();
+            }
+
+            ret = mbedtls_ecp_point_write_binary(&hkey.ctx.mbed_ecdh.grp,
+                                                 &hkey.ctx.mbed_ecdh.Q,
+                                                 MBEDTLS_ECP_PF_UNCOMPRESSED,
+                                                 &olen,
+                                                 res_APDU,
+                                                 4096);
+            mbedtls_ecdh_free(&hkey);
+            if (ret != 0) {
+                return SW_EXEC_ERROR();
+            }
+            mse.init = true;
+            res_APDU_size = (uint16_t)olen;
+        }
+        else if (P2(apdu) == 0x02 || P2(apdu) == 0x03 || P2(apdu) == 0x04) {
+            if (mse.init == false) {
+                return SW_COMMAND_NOT_ALLOWED();
+            }
+
+            int ret = mse_decrypt_ct(apdu.data, apdu.nc);
+            if (ret != 0) {
+                return SW_WRONG_DATA();
+            }
+            if (P2(apdu) == 0x02 || P2(apdu) == 0x04) { // Enable
+                uint16_t opts = get_device_options();
+                uint8_t newopts[] = { opts >> 8, (opts & 0xff) };
+                if ((P2(apdu) == 0x02 && !(opts & HSM_OPT_SECURE_LOCK)) ||
+                    (P2(apdu) == 0x04 && (opts & HSM_OPT_SECURE_LOCK))) {
+                    uint16_t tfids[] = { EF_MKEK, EF_MKEK_SO };
+                    for (int t = 0; t < sizeof(tfids) / sizeof(uint16_t); t++) {
+                        file_t *tf = search_file(tfids[t]);
+                        if (tf) {
+                            uint8_t *tmp = (uint8_t *) calloc(1, file_get_size(tf));
+                            memcpy(tmp, file_get_data(tf), file_get_size(tf));
+                            for (int i = 0; i < MKEK_KEY_SIZE; i++) {
+                                MKEK_KEY(tmp)[i] ^= apdu.data[i];
+                            }
+                            file_put_data(tf, tmp, file_get_size(tf));
+                            free(tmp);
+                        }
+                    }
+                }
+                if (P2(apdu) == 0x02) {
+                    newopts[0] |= HSM_OPT_SECURE_LOCK >> 8;
+                }
+                else if (P2(apdu) == 0x04) {
+                    newopts[0] &= ~HSM_OPT_SECURE_LOCK >> 8;
+                }
+                file_t *tf = search_file(EF_DEVOPS);
+                file_put_data(tf, newopts, sizeof(newopts));
+                low_flash_available();
+            }
+            else if (P2(apdu) == 0x03) {
+                memcpy(mkek_mask, apdu.data, apdu.nc);
+                has_mkek_mask = true;
+            }
+        }
+    }
+#ifndef ENABLE_EMULATION
+    else if (P1(apdu) == 0x1B) { // Set PHY
+        if (apdu.nc == 0) {
+            if (file_has_data(ef_phy)) {
+                res_APDU_size = file_get_size(ef_phy);
+                memcpy(res_APDU, file_get_data(ef_phy), res_APDU_size);
+            }
+        }
+        else {
+            uint8_t tmp[PHY_MAX_SIZE];
+            memset(tmp, 0, sizeof(tmp));
+            uint16_t opts = 0;
+            if (file_has_data(ef_phy)) {
+                memcpy(tmp, file_get_data(ef_phy), MIN(sizeof(tmp), file_get_size(ef_phy)));
+                if (file_get_size(ef_phy) >= 8) {
+                    opts = (tmp[PHY_OPTS] << 8) | tmp[PHY_OPTS + 1];
+                }
+            }
+            if (P2(apdu) == PHY_VID) { // VIDPID
+                if (apdu.nc != 4) {
+                    return SW_WRONG_LENGTH();
+                }
+                memcpy(tmp + PHY_VID, apdu.data, 4);
+                opts |= PHY_OPT_VPID;
+            }
+            else if (P2(apdu) == PHY_LED_GPIO || P2(apdu) == PHY_LED_MODE) {
+                if (apdu.nc != 1) {
+                    return SW_WRONG_LENGTH();
+                }
+                tmp[P2(apdu)] = apdu.data[0];
+                if (P2(apdu) == PHY_LED_GPIO) {
+                    opts |= PHY_OPT_GPIO;
+                }
+                else if (P2(apdu) == PHY_LED_MODE) {
+                    opts |= PHY_OPT_LED;
+                }
+            }
+            else if (P2(apdu) == PHY_OPTS) {
+                if (apdu.nc != 2) {
+                    return SW_WRONG_LENGTH();
+                }
+                uint16_t opt = (apdu.data[0] << 8) | apdu.data[1];
+                opts = (opts & ~PHY_OPT_MASK) | (opt & PHY_OPT_MASK);
+            }
+            else {
+                return SW_INCORRECT_P1P2();
+            }
+            tmp[PHY_OPTS] = opts >> 8;
+            tmp[PHY_OPTS + 1] = opts & 0xff;
+            file_put_data(ef_phy, tmp, sizeof(tmp));
+            low_flash_available();
+        }
+    }
+#endif
+    else {
         return SW_INCORRECT_P1P2();
+    }
     return SW_OK();
 }

src/hsm/cmd_general_authenticate.c

@@ -15,10 +15,9 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "common.h"
+#include "sc_hsm.h"
 #include "mbedtls/ecdh.h"
 #include "asn1.h"
-#include "sc_hsm.h"
 #include "random.h"
 #include "oid.h"
 #include "eac.h"
@@ -28,25 +27,28 @@ int cmd_general_authenticate() {
     if (P1(apdu) == 0x0 && P2(apdu) == 0x0) {
         if (apdu.data[0] == 0x7C) {
             int r = 0;
-            size_t pubkey_len = 0;
+            uint16_t pubkey_len = 0;
             const uint8_t *pubkey = NULL;
             uint16_t tag = 0x0;
             uint8_t *tag_data = NULL, *p = NULL;
-            size_t tag_len = 0;
-            while (walk_tlv(apdu.data+2, apdu.nc-2, &p, &tag, &tag_len, &tag_data)) {
+            uint16_t tag_len = 0;
+            asn1_ctx_t ctxi;
+            asn1_ctx_init(apdu.data + 2, (uint16_t)(apdu.nc - 2), &ctxi);
+            while (walk_tlv(&ctxi, &p, &tag, &tag_len, &tag_data)) {
                 if (tag == 0x80) {
-                    pubkey = tag_data-1; //mbedtls ecdh starts reading one pos before
-                    pubkey_len = tag_len+1;
+                    pubkey = tag_data - 1; //mbedtls ecdh starts reading one pos before
+                    pubkey_len = tag_len + 1;
                 }
             }
-            file_t *fkey = search_by_fid(EF_KEY_DEV, NULL, SPECIFY_EF);
-            if (!fkey)
+            file_t *fkey = search_file(EF_KEY_DEV);
+            if (!fkey) {
                 return SW_EXEC_ERROR();
-            mbedtls_ecdsa_context ectx;
-            mbedtls_ecdsa_init(&ectx);
-            r = load_private_key_ecdsa(&ectx, fkey);
+            }
+            mbedtls_ecp_keypair ectx;
+            mbedtls_ecp_keypair_init(&ectx);
+            r = load_private_key_ecdh(&ectx, fkey);
             if (r != CCID_OK) {
-                mbedtls_ecdsa_free(&ectx);
+                mbedtls_ecp_keypair_free(&ectx);
                 return SW_EXEC_ERROR();
             }
             mbedtls_ecdh_context ctx;
@@ -54,12 +56,12 @@ int cmd_general_authenticate() {
             mbedtls_ecp_group_id gid = MBEDTLS_ECP_DP_SECP256R1;
             r = mbedtls_ecdh_setup(&ctx, gid);
             if (r != 0) {
-                mbedtls_ecdsa_free(&ectx);
+                mbedtls_ecp_keypair_free(&ectx);
                 mbedtls_ecdh_free(&ctx);
                 return SW_DATA_INVALID();
             }
             r = mbedtls_mpi_copy(&ctx.ctx.mbed_ecdh.d, &ectx.d);
-            mbedtls_ecdsa_free(&ectx);
+            mbedtls_ecp_keypair_free(&ectx);
             if (r != 0) {
                 mbedtls_ecdh_free(&ctx);
                 return SW_DATA_INVALID();
@@ -71,7 +73,12 @@ int cmd_general_authenticate() {
             }
             size_t olen = 0;
             uint8_t derived[MBEDTLS_ECP_MAX_BYTES];
-            r = mbedtls_ecdh_calc_secret(&ctx, &olen, derived, MBEDTLS_ECP_MAX_BYTES, random_gen, NULL);
+            r = mbedtls_ecdh_calc_secret(&ctx,
+                                         &olen,
+                                         derived,
+                                         MBEDTLS_ECP_MAX_BYTES,
+                                         random_gen,
+                                         NULL);
             mbedtls_ecdh_free(&ctx);
             if (r != 0) {
                 return SW_EXEC_ERROR();
@@ -79,27 +86,29 @@ int cmd_general_authenticate() {
 
             sm_derive_all_keys(derived, olen);
 
-            uint8_t *t = (uint8_t *)calloc(1, pubkey_len+16);
-            memcpy(t, "\x7F\x49\x3F\x06\x0A", 5);
-            if (sm_get_protocol() == MSE_AES)
-                memcpy(t+5, OID_ID_CA_ECDH_AES_CBC_CMAC_128, 10);
+            uint8_t *t = (uint8_t *) calloc(1, pubkey_len + 16);
+            memcpy(t, "\x7F\x49\x4F\x06\x0A", 5);
+            if (sm_get_protocol() == MSE_AES) {
+                memcpy(t + 5, OID_ID_CA_ECDH_AES_CBC_CMAC_128, 10);
+            }
             t[15] = 0x86;
-            memcpy(t+16, pubkey, pubkey_len);
+            memcpy(t + 16, pubkey, pubkey_len);
 
             res_APDU[res_APDU_size++] = 0x7C;
             res_APDU[res_APDU_size++] = 20;
             res_APDU[res_APDU_size++] = 0x81;
             res_APDU[res_APDU_size++] = 8;
-            memcpy(res_APDU+res_APDU_size, sm_get_nonce(), 8);
+            memcpy(res_APDU + res_APDU_size, sm_get_nonce(), 8);
             res_APDU_size += 8;
             res_APDU[res_APDU_size++] = 0x82;
             res_APDU[res_APDU_size++] = 8;
 
-            r = sm_sign(t, pubkey_len+16, res_APDU+res_APDU_size);
+            r = sm_sign(t, pubkey_len + 16, res_APDU + res_APDU_size);
 
             free(t);
-            if (r != CCID_OK)
+            if (r != CCID_OK) {
                 return SW_EXEC_ERROR();
+            }
             res_APDU_size += 8;
         }
     }

src/hsm/cmd_initialize.c

@@ -28,12 +28,17 @@ extern void scan_all();
 
 extern char __StackLimit;
 int heapLeft() {
+#if !defined(ENABLE_EMULATION) && !defined(ESP_PLATFORM)
     char *p = malloc(256);   // try to avoid undue fragmentation
     int left = &__StackLimit - p;
     free(p);
+#else
+    int left = 1024 * 1024;
+#endif
     return left;
 }
 
+extern void reset_puk_store();
 int cmd_initialize() {
     if (apdu.nc > 0) {
         uint8_t mkek[MKEK_SIZE];
@@ -43,39 +48,41 @@ int cmd_initialize() {
         has_session_pin = has_session_sopin = false;
         uint16_t tag = 0x0;
         uint8_t *tag_data = NULL, *p = NULL, *kds = NULL, *dkeks = NULL;
-        size_t tag_len = 0;
-        while (walk_tlv(apdu.data, apdu.nc, &p, &tag, &tag_len, &tag_data)) {
+        uint16_t tag_len = 0;
+        asn1_ctx_t ctxi;
+        asn1_ctx_init(apdu.data, (uint16_t)apdu.nc, &ctxi);
+        while (walk_tlv(&ctxi, &p, &tag, &tag_len, &tag_data)) {
             if (tag == 0x80) { //options
-                file_t *tf = search_by_fid(EF_DEVOPS, NULL, SPECIFY_EF);
-                flash_write_data_to_file(tf, tag_data, tag_len);
+                file_t *tf = search_file(EF_DEVOPS);
+                file_put_data(tf, tag_data, tag_len);
             }
-            else if (tag == 0x81) { //user pin
+            else if (tag == 0x81) {   //user pin
                 if (file_pin1 && file_pin1->data) {
                     uint8_t dhash[33];
-                    dhash[0] = tag_len;
-                    double_hash_pin(tag_data, tag_len, dhash+1);
-                    flash_write_data_to_file(file_pin1, dhash, sizeof(dhash));
+                    dhash[0] = (uint8_t)tag_len;
+                    double_hash_pin(tag_data, tag_len, dhash + 1);
+                    file_put_data(file_pin1, dhash, sizeof(dhash));
                     hash_multi(tag_data, tag_len, session_pin);
                     has_session_pin = true;
                 }
             }
-            else if (tag == 0x82) { //sopin pin
+            else if (tag == 0x82) {   //sopin pin
                 if (file_sopin && file_sopin->data) {
                     uint8_t dhash[33];
-                    dhash[0] = tag_len;
-                    double_hash_pin(tag_data, tag_len, dhash+1);
-                    flash_write_data_to_file(file_sopin, dhash, sizeof(dhash));
+                    dhash[0] = (uint8_t)tag_len;
+                    double_hash_pin(tag_data, tag_len, dhash + 1);
+                    file_put_data(file_sopin, dhash, sizeof(dhash));
                     hash_multi(tag_data, tag_len, session_sopin);
                     has_session_sopin = true;
                 }
             }
-            else if (tag == 0x91) { //retries user pin
-                file_t *tf = search_by_fid(0x1082, NULL, SPECIFY_EF);
+            else if (tag == 0x91) {   //retries user pin
+                file_t *tf = search_file(EF_PIN1_MAX_RETRIES);
                 if (tf && tf->data) {
-                    flash_write_data_to_file(tf, tag_data, tag_len);
+                    file_put_data(tf, tag_data, tag_len);
                 }
                 if (file_retries_pin1 && file_retries_pin1->data) {
-                    flash_write_data_to_file(file_retries_pin1, tag_data, tag_len);
+                    file_put_data(file_retries_pin1, tag_data, tag_len);
                 }
             }
             else if (tag == 0x92) {
@@ -85,48 +92,49 @@ int cmd_initialize() {
                     release_mkek(mkek);
                     return SW_MEMORY_FAILURE();
                 }
-                flash_write_data_to_file(tf, NULL, 0);
+                file_put_data(tf, NULL, 0);
             }
             else if (tag == 0x93) {
-                file_t *ef_puk = search_by_fid(EF_PUKAUT, NULL, SPECIFY_EF);
+                file_t *ef_puk = search_file(EF_PUKAUT);
                 if (!ef_puk) {
                     release_mkek(mkek);
                     return SW_MEMORY_FAILURE();
                 }
-                uint8_t pk_status[4], puks = MIN(tag_data[0],MAX_PUK);
+                uint8_t pk_status[4], puks = MIN(tag_data[0], MAX_PUK);
                 memset(pk_status, 0, sizeof(pk_status));
                 pk_status[0] = puks;
                 pk_status[1] = puks;
                 pk_status[2] = tag_data[1];
-                flash_write_data_to_file(ef_puk, pk_status, sizeof(pk_status));
-                for (int i = 0; i < puks; i++) {
-                    file_t *tf = file_new(EF_PUK+i);
+                file_put_data(ef_puk, pk_status, sizeof(pk_status));
+                for (uint8_t i = 0; i < puks; i++) {
+                    file_t *tf = file_new(EF_PUK + i);
                     if (!tf) {
                         release_mkek(mkek);
                         return SW_MEMORY_FAILURE();
                     }
-                    flash_write_data_to_file(tf, NULL, 0);
+                    file_put_data(tf, NULL, 0);
                 }
             }
             else if (tag == 0x97) {
                 kds = tag_data;
                 /*
-                for (int i = 0; i < MIN(*kds,MAX_KEY_DOMAINS); i++) {
+                   for (int i = 0; i < MIN(*kds,MAX_KEY_DOMAINS); i++) {
                     file_t *tf = file_new(EF_DKEK+i);
                     if (!tf)
                         return SW_MEMORY_FAILURE();
-                    flash_write_data_to_file(tf, NULL, 0);
-                }
-                */
+                    file_put_data(tf, NULL, 0);
+                   }
+                 */
             }
         }
-        file_t *tf_kd = search_by_fid(EF_KEY_DOMAIN, NULL, SPECIFY_EF);
+        file_t *tf_kd = search_file(EF_KEY_DOMAIN);
         if (!tf_kd) {
             release_mkek(mkek);
             return SW_EXEC_ERROR();
         }
-        if (ret_mkek != CCID_OK)
+        if (ret_mkek != CCID_OK) {
             ret_mkek = load_mkek(mkek); //Try again with new PIN/SO-PIN just in case some is the same
+        }
         if (store_mkek(ret_mkek == CCID_OK ? mkek : NULL) != CCID_OK) {
             release_mkek(mkek);
             return SW_EXEC_ERROR();
@@ -135,37 +143,43 @@ int cmd_initialize() {
         if (dkeks) {
             if (*dkeks > 0) {
                 uint16_t d = *dkeks;
-                if (flash_write_data_to_file(tf_kd, (const uint8_t *)&d, sizeof(d)) != CCID_OK)
+                if (file_put_data(tf_kd, (const uint8_t *) &d, sizeof(d)) != CCID_OK) {
                     return SW_EXEC_ERROR();
+                }
             }
             else {
                 int r = save_dkek_key(0, random_bytes_get(32));
-                if (r != CCID_OK)
+                if (r != CCID_OK) {
                     return SW_EXEC_ERROR();
+                }
                 uint16_t d = 0x0101;
-                if (flash_write_data_to_file(tf_kd, (const uint8_t *)&d, sizeof(d)) != CCID_OK)
+                if (file_put_data(tf_kd, (const uint8_t *) &d, sizeof(d)) != CCID_OK) {
                     return SW_EXEC_ERROR();
+                }
             }
         }
         else {
             uint16_t d = 0x0000;
-            if (flash_write_data_to_file(tf_kd, (const uint8_t *)&d, sizeof(d)) != CCID_OK)
+            if (file_put_data(tf_kd, (const uint8_t *) &d, sizeof(d)) != CCID_OK) {
                 return SW_EXEC_ERROR();
+            }
         }
         if (kds) {
-            uint8_t t[MAX_KEY_DOMAINS*2], k = MIN(*kds,MAX_KEY_DOMAINS);
-            memset(t, 0xff, 2*k);
-            if (flash_write_data_to_file(tf_kd, t, 2*k) != CCID_OK)
+            uint8_t t[MAX_KEY_DOMAINS * 2], k = MIN(*kds, MAX_KEY_DOMAINS);
+            memset(t, 0xff, 2 * k);
+            if (file_put_data(tf_kd, t, 2 * k) != CCID_OK) {
                 return SW_EXEC_ERROR();
+            }
         }
         /* When initialized, it has all credentials */
         isUserAuthenticated = true;
         /* Create terminal private key */
-        file_t *fdkey = search_by_fid(EF_KEY_DEV, NULL, SPECIFY_EF);
-        if (!fdkey)
+        file_t *fdkey = search_file(EF_KEY_DEV);
+        if (!fdkey) {
             return SW_EXEC_ERROR();
+        }
         int ret = 0;
-        if (ret_mkek != CCID_OK || file_get_size(fdkey) == 0 || file_get_data(fdkey) == NULL) {
+        if (ret_mkek != CCID_OK || !file_has_data(fdkey)) {
             mbedtls_ecdsa_context ecdsa;
             mbedtls_ecdsa_init(&ecdsa);
             mbedtls_ecp_group_id ec_id = MBEDTLS_ECP_DP_SECP256R1;
@@ -175,33 +189,57 @@ int cmd_initialize() {
                 mbedtls_ecdsa_free(&ecdsa);
                 return SW_EXEC_ERROR();
             }
-            ret = store_keys(&ecdsa, HSM_KEY_EC, key_id);
+            ret = store_keys(&ecdsa, PICO_KEYS_KEY_EC, key_id);
             if (ret != CCID_OK) {
                 mbedtls_ecdsa_free(&ecdsa);
                 return SW_EXEC_ERROR();
             }
             size_t cvc_len = 0;
-            if ((cvc_len = asn1_cvc_aut(&ecdsa, HSM_KEY_EC, res_APDU, 4096, NULL, 0)) == 0) {
+            if ((cvc_len = asn1_cvc_aut(&ecdsa, PICO_KEYS_KEY_EC, res_APDU, 4096, NULL, 0)) == 0) {
                 mbedtls_ecdsa_free(&ecdsa);
                 return SW_EXEC_ERROR();
             }
-            mbedtls_ecdsa_free(&ecdsa);
 
-            file_t *fpk = search_by_fid(EF_EE_DEV, NULL, SPECIFY_EF);
-            ret = flash_write_data_to_file(fpk, res_APDU, cvc_len);
-            if (ret != 0)
+            file_t *fpk = search_file(EF_EE_DEV);
+            ret = file_put_data(fpk, res_APDU, (uint16_t)cvc_len);
+            if (ret != 0) {
+                mbedtls_ecdsa_free(&ecdsa);
                 return SW_EXEC_ERROR();
+            }
+
+            if ((cvc_len = asn1_cvc_cert(&ecdsa, PICO_KEYS_KEY_EC, res_APDU, 4096, NULL, 0, true)) == 0) {
+                mbedtls_ecdsa_free(&ecdsa);
+                return SW_EXEC_ERROR();
+            }
+            memcpy(res_APDU + cvc_len, res_APDU, cvc_len);
+            mbedtls_ecdsa_free(&ecdsa);
+            fpk = search_file(EF_TERMCA);
+            ret = file_put_data(fpk, res_APDU, (uint16_t)(2 * cvc_len));
+            if (ret != 0) {
+                return SW_EXEC_ERROR();
+            }
+
+            const uint8_t *keyid =
+                (const uint8_t *) "\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0",
+                          *label = (const uint8_t *) "ESPICOHSMTR";
+            uint16_t prkd_len = asn1_build_prkd_ecc(label,
+                                                  (uint16_t)strlen((const char *) label),
+                                                  keyid,
+                                                  20,
+                                                  256,
+                                                  res_APDU,
+                                                  4096);
+            fpk = search_file(EF_PRKD_DEV);
+            ret = file_put_data(fpk, res_APDU, prkd_len);
 
-            const uint8_t *keyid = (const uint8_t *)"\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0", *label = (const uint8_t *)"ESTERMHSM";
-            size_t prkd_len = asn1_build_prkd_ecc(label, strlen((const char *)label), keyid, 20, 192, res_APDU, 4096);
-            fpk = search_by_fid(EF_PRKD_DEV, NULL, SPECIFY_EF);
-            ret = flash_write_data_to_file(fpk, res_APDU, prkd_len);
         }
-        if (ret != 0)
+        if (ret != 0) {
             return SW_EXEC_ERROR();
+        }
         low_flash_available();
+        reset_puk_store();
     }
-    else { //free memory bytes request
+    else {   //free memory bytes request
         int heap_left = heapLeft();
         res_APDU[0] = ((heap_left >> 24) & 0xff);
         res_APDU[1] = ((heap_left >> 16) & 0xff);

src/hsm/cmd_key_domain.c

@@ -22,141 +22,190 @@
 #include "files.h"
 
 uint8_t get_key_domain(file_t *fkey) {
-    size_t tag_len = 0;
+    uint16_t tag_len = 0;
+    if (!file_has_data(fkey)) {
+        return 0xff;
+    }
     const uint8_t *meta_tag = get_meta_tag(fkey, 0x92, &tag_len);
-    if (meta_tag)
+    if (meta_tag) {
         return *meta_tag;
-    return 0xff;
+    }
+    return 0x0;
 }
 
 int cmd_key_domain() {
     //if (dkeks == 0)
     //    return SW_COMMAND_NOT_ALLOWED();
     uint8_t p1 = P1(apdu), p2 = P2(apdu);
-    if ((has_session_pin == false || isUserAuthenticated == false) && apdu.nc > 0)
+    if ((has_session_pin == false || isUserAuthenticated == false) && apdu.nc > 0 &&
+        !(p1 == 0x0 && p2 == 0x0)) {
         return SW_CONDITIONS_NOT_SATISFIED();
-    if (p2 >= MAX_KEY_DOMAINS)
+    }
+    if (p2 >= MAX_KEY_DOMAINS) {
         return SW_WRONG_P1P2();
-    file_t *tf_kd = search_by_fid(EF_KEY_DOMAIN, NULL, SPECIFY_EF);
-    if (!tf_kd)
+    }
+    file_t *tf_kd = search_file(EF_KEY_DOMAIN);
+    if (!tf_kd) {
         return SW_EXEC_ERROR();
+    }
     uint16_t tf_kd_size = file_get_size(tf_kd);
-    if (tf_kd_size == 0)
+    if (tf_kd_size == 0) {
         return SW_WRONG_P1P2();
-    uint8_t *kdata = file_get_data(tf_kd), dkeks = kdata ? kdata[2*p2] : 0, current_dkeks = kdata ? kdata[2*p2+1] : 0;
+    }
+    uint8_t *kdata = file_get_data(tf_kd), dkeks = kdata ? kdata[2 * p2] : 0,
+            current_dkeks = kdata ? kdata[2 * p2 + 1] : 0;
     if (p1 == 0x0) { //dkek import
         if (apdu.nc > 0) {
-            file_t *tf = file_new(EF_DKEK+p2);
-            if (!tf)
+            file_t *tf = file_new(EF_DKEK + p2);
+            if (!tf) {
                 return SW_MEMORY_FAILURE();
-            if (apdu.nc < 32)
+            }
+            if (apdu.nc < 32) {
                 return SW_WRONG_LENGTH();
+            }
+            if (current_dkeks == dkeks) {
+                return SW_COMMAND_NOT_ALLOWED();
+            }
             import_dkek_share(p2, apdu.data);
             if (++current_dkeks >= dkeks) {
-                if (save_dkek_key(p2, NULL) != CCID_OK)
-                    return SW_FILE_NOT_FOUND();
+                int r = save_dkek_key(p2, NULL);
+                if (r != CCID_OK) {
+                    if (r == CCID_NO_LOGIN) {
+                        pending_save_dkek = p2;
+                    }
+                    else {
+                        /* On fail, it will return to previous dkek state. */
+                        import_dkek_share(p2, apdu.data);
+                        return SW_FILE_NOT_FOUND();
+                    }
+                }
             }
-            uint8_t t[MAX_KEY_DOMAINS*2];
+            uint8_t t[MAX_KEY_DOMAINS * 2];
             memcpy(t, kdata, tf_kd_size);
-            t[2*p2+1] = current_dkeks;
-            if (flash_write_data_to_file(tf_kd, t, tf_kd_size) != CCID_OK)
+            t[2 * p2 + 1] = current_dkeks;
+            if (file_put_data(tf_kd, t, tf_kd_size) != CCID_OK) {
                 return SW_EXEC_ERROR();
+            }
             low_flash_available();
         }
         else {
-            file_t *tf = search_dynamic_file(EF_XKEK+p2);
-            if (2*p2 >= tf_kd_size || current_dkeks == 0)
+            file_t *tf = search_file(EF_XKEK + p2);
+            if (2 * p2 >= tf_kd_size) {
                 return SW_INCORRECT_P1P2();
-            if (current_dkeks == 0xff && !tf) //XKEK have always 0xff
+            }
+            if (current_dkeks == 0xff && !file_has_data(tf)) { //XKEK have always 0xff
                 return SW_REFERENCE_NOT_FOUND();
-        }
-    }
-    else if (p1 == 0x1 || p1 == 0x3 || p1 == 0x4) { //key domain setup
-        if (p1 == 0x1 && apdu.nc != 1)
-            return SW_WRONG_LENGTH();
-        if (p1 == 0x3) { //if key domain is not empty, command is denied
-            for (int i = 0; i < dynamic_files; i++) {
-                if (get_key_domain(&dynamic_file[i]) == p2)
-                    return SW_FILE_EXISTS();
             }
         }
-        uint8_t t[MAX_KEY_DOMAINS*2];
+    }
+    else if (p1 == 0x1 || p1 == 0x3 || p1 == 0x4) {   //key domain setup
+        if (p1 == 0x1 && apdu.nc != 1) {
+            return SW_WRONG_LENGTH();
+        }
+        if (p1 == 0x3) { //if key domain is not empty, command is denied
+            for (uint16_t i = 1; i < 256; i++) {
+                file_t *fkey = search_file(KEY_PREFIX << 8 | (uint8_t)i);
+                if (get_key_domain(fkey) == p2) {
+                    return SW_FILE_EXISTS();
+                }
+            }
+        }
+        uint8_t t[MAX_KEY_DOMAINS * 2];
         memcpy(t, kdata, tf_kd_size);
         if (p1 == 0x1) {
-            t[2*p2] = dkeks = apdu.data[0];
-            t[2*p2+1] = current_dkeks = 0;
+            if (t[2 * p2] != 0xff || t[2 * p2 + 1] != 0xff) {
+                return SW_INCORRECT_P1P2();
+            }
+            t[2 * p2] = dkeks = apdu.data[0];
+            t[2 * p2 + 1] = current_dkeks = 0;
         }
         else if (p1 == 0x3) {
-            t[2*p2] = dkeks = 0xff;
-            t[2*p2+1] = 0xff;
+            if (t[2 * p2] == 0xff && t[2 * p2 + 1] == 0xff) {
+                return SW_INCORRECT_P1P2();
+            }
+            t[2 * p2] = dkeks = 0xff;
+            t[2 * p2 + 1] = 0xff;
         }
         else if (p1 == 0x4) {
-            t[2*p2+1] = current_dkeks = 0;
+            t[2 * p2 + 1] = current_dkeks = 0;
         }
-        if (flash_write_data_to_file(tf_kd, t, tf_kd_size) != CCID_OK)
+        if (file_put_data(tf_kd, t, tf_kd_size) != CCID_OK) {
             return SW_EXEC_ERROR();
-        file_t *tf = NULL;
-        if ((tf = search_dynamic_file(EF_DKEK+p2))) {
-            if (delete_file(tf) != CCID_OK)
-                return SW_EXEC_ERROR();
         }
-        if (p1 == 0x3 && (tf = search_dynamic_file(EF_XKEK+p2))) {
-            if (delete_file(tf) != CCID_OK)
+        file_t *tf = NULL;
+        if ((tf = search_file(EF_DKEK + p2))) {
+            if (delete_file(tf) != CCID_OK) {
                 return SW_EXEC_ERROR();
+            }
+        }
+        if (p1 == 0x3 && (tf = search_file(EF_XKEK + p2))) {
+            if (delete_file(tf) != CCID_OK) {
+                return SW_EXEC_ERROR();
+            }
         }
         low_flash_available();
+        if (p1 == 0x3) {
+            return SW_REFERENCE_NOT_FOUND();
+        }
     }
-    else if (p1 == 0x2) { //XKEK Key Domain creation
+    else if (p1 == 0x2) {   //XKEK Key Domain creation
         if (apdu.nc > 0) {
-            size_t pub_len = 0;
-            file_t *fterm = search_by_fid(EF_TERMCA, NULL, SPECIFY_EF);
-            if (!fterm)
+            uint16_t pub_len = 0;
+            file_t *fterm = search_file(EF_TERMCA);
+            if (!fterm) {
                 return SW_EXEC_ERROR();
+            }
             const uint8_t *pub = cvc_get_pub(file_get_data(fterm), file_get_size(fterm), &pub_len);
-            if (!pub)
+            if (!pub) {
                 return SW_EXEC_ERROR();
-            size_t t86_len = 0;
+            }
+            uint16_t t86_len = 0;
             const uint8_t *t86 = cvc_get_field(pub, pub_len, &t86_len, 0x86);
-            if (!t86 || t86[0] != 0x4)
+            if (!t86 || t86[0] != 0x4) {
                 return SW_EXEC_ERROR();
-            size_t t54_len = 0;
-            const uint8_t *t54 = cvc_get_field(apdu.data, apdu.nc, &t54_len, 0x54);
-            if (!t54)
+            }
+            uint16_t t54_len = 0;
+            const uint8_t *t54 = cvc_get_field(apdu.data, (uint16_t)apdu.nc, &t54_len, 0x54);
+            if (!t54) {
                 return SW_WRONG_DATA();
-            uint8_t hash[32], *input = (uint8_t *)calloc(1, (t86_len-1)/2+1);
+            }
+            uint8_t hash[32], *input = (uint8_t *) calloc(1, (t86_len - 1) / 2 + 1);
             input[0] = 0x54;
-            memcpy(input+1, t86+1, (t86_len-1)/2);
-            hash256(input, (t86_len-1)/2+1, hash);
+            memcpy(input + 1, t86 + 1, (t86_len - 1) / 2);
+            hash256(input, (t86_len - 1) / 2 + 1, hash);
             free(input);
-            int r = puk_verify(t54, t54_len, hash, 32, apdu.data, apdu.nc);
-            if (r != 0)
+            int r = puk_verify(t54, t54_len, hash, 32, apdu.data, (uint16_t)apdu.nc);
+            if (r != 0) {
                 return SW_CONDITIONS_NOT_SATISFIED();
-            file_t *tf = file_new(EF_XKEK+p2);
-            if (!tf)
+            }
+            file_t *tf = file_new(EF_XKEK + p2);
+            if (!tf) {
                 return SW_MEMORY_FAILURE();
+            }
 
             //All checks done. Get Key Domain UID
-            pub = cvc_get_pub(apdu.data, apdu.nc, &pub_len);
+            pub = cvc_get_pub(apdu.data, (uint16_t)apdu.nc, &pub_len);
             if (pub) {
-                size_t t86_len = 0;
-                const uint8_t *t86 = cvc_get_field(pub, pub_len, &t86_len, 0x86);
+                t86_len = 0;
+                t86 = cvc_get_field(pub, pub_len, &t86_len, 0x86);
                 if (t86) {
-                    flash_write_data_to_file(tf, t86+1, t86_len-1);
+                    file_put_data(tf, t86 + 1, (uint16_t)t86_len - 1);
                     low_flash_available();
                 }
             }
         }
     }
-    else
+    else {
         return SW_INCORRECT_P1P2();
-    memset(res_APDU,0,10);
+    }
+    memset(res_APDU, 0, 10);
     res_APDU[0] = dkeks;
-    res_APDU[1] = dkeks > current_dkeks ? dkeks-current_dkeks : 0;
-    dkek_kcv(p2, res_APDU+2);
-    res_APDU_size = 2+8;
-    file_t *tf = search_dynamic_file(EF_XKEK+p2);
-    if (tf) {
-        memcpy(res_APDU+10, file_get_data(tf), file_get_size(tf));
+    res_APDU[1] = dkeks > current_dkeks ? dkeks - current_dkeks : 0;
+    dkek_kcv(p2, res_APDU + 2);
+    res_APDU_size = 2 + 8;
+    file_t *tf = search_file(EF_XKEK + p2);
+    if (file_has_data(tf)) {
+        memcpy(res_APDU + 10, file_get_data(tf), file_get_size(tf));
         res_APDU_size += file_get_size(tf);
     }
     return SW_OK();

src/hsm/cmd_key_gen.c

@@ -24,29 +24,44 @@ int cmd_key_gen() {
     uint8_t p2 = P2(apdu);
     uint8_t key_size = 32;
     int r;
-    if (!isUserAuthenticated)
+    if (!isUserAuthenticated) {
         return SW_SECURITY_STATUS_NOT_SATISFIED();
-    if (p2 == 0xB2)
+    }
+    if (p2 == 0xB3) {
+        key_size = 64;
+    }
+    else if (p2 == 0xB2) {
         key_size = 32;
-    else if (p2 == 0xB1)
+    }
+    else if (p2 == 0xB1) {
         key_size = 24;
-    else if (p2 == 0xB0)
+    }
+    else if (p2 == 0xB0) {
         key_size = 16;
+    }
     //at this moment, we do not use the template, as only CBC is supported by the driver (encrypt, decrypt and CMAC)
-    uint8_t aes_key[32]; //maximum AES key size
+    uint8_t aes_key[64]; //maximum AES key size
     memcpy(aes_key, random_bytes_get(key_size), key_size);
     int aes_type = 0x0;
-    if (key_size == 16)
-        aes_type = HSM_KEY_AES_128;
-    else if (key_size == 24)
-        aes_type = HSM_KEY_AES_192;
-    else if (key_size == 32)
-        aes_type = HSM_KEY_AES_256;
+    if (key_size == 16) {
+        aes_type = PICO_KEYS_KEY_AES_128;
+    }
+    else if (key_size == 24) {
+        aes_type = PICO_KEYS_KEY_AES_192;
+    }
+    else if (key_size == 32) {
+        aes_type = PICO_KEYS_KEY_AES_256;
+    }
+    else if (key_size == 64) {
+        aes_type = PICO_KEYS_KEY_AES_512;
+    }
     r = store_keys(aes_key, aes_type, key_id);
-    if (r != CCID_OK)
+    if (r != CCID_OK) {
         return SW_MEMORY_FAILURE();
-    if (find_and_store_meta_key(key_id) != CCID_OK)
+    }
+    if (find_and_store_meta_key(key_id) != CCID_OK) {
         return SW_EXEC_ERROR();
+    }
     low_flash_available();
     return SW_OK();
 }

src/hsm/cmd_key_unwrap.c

@@ -15,92 +15,139 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "crypto_utils.h"
 #include "sc_hsm.h"
+#include "crypto_utils.h"
 #include "kek.h"
+#include "cvc.h"
 
 int cmd_key_unwrap() {
-    int key_id = P1(apdu), r = 0;
-    if (P2(apdu) != 0x93)
+    uint8_t key_id = P1(apdu);
+    int r = 0;
+    if (P2(apdu) != 0x93) {
         return SW_WRONG_P1P2();
-    if (!isUserAuthenticated)
+    }
+    if (!isUserAuthenticated) {
         return SW_SECURITY_STATUS_NOT_SATISFIED();
-    int key_type = dkek_type_key(apdu.data);
-    uint8_t kdom = -1, *allowed = NULL;
-    size_t allowed_len = 0;
-    if (key_type == 0x0)
+    }
+    uint8_t *data = apdu.data;
+    uint16_t data_len = apdu.nc;
+    if (data_len == 0) { // New style
+        file_t *tef = search_file(0x2F10);
+        if (!file_has_data(tef)) {
+            return SW_FILE_NOT_FOUND();
+        }
+        data = file_get_data(tef);
+        data_len = file_get_size(tef);
+    }
+    int key_type = dkek_type_key(data);
+    uint8_t *allowed = NULL;
+    int16_t kdom = -1;
+    uint16_t allowed_len = 0;
+    if (key_type == 0x0) {
         return SW_DATA_INVALID();
-    if (key_type == HSM_KEY_RSA) {
+    }
+    if (key_type & PICO_KEYS_KEY_RSA) {
         mbedtls_rsa_context ctx;
         mbedtls_rsa_init(&ctx);
         do {
-            r = dkek_decode_key(++kdom, &ctx, apdu.data, apdu.nc, NULL, &allowed, &allowed_len);
-        } while((r == CCID_ERR_FILE_NOT_FOUND || r == CCID_WRONG_DKEK) && kdom < MAX_KEY_DOMAINS);
+            r = dkek_decode_key((uint8_t)++kdom, &ctx, data, data_len, NULL, &allowed, &allowed_len);
+        } while ((r == CCID_ERR_FILE_NOT_FOUND || r == CCID_WRONG_DKEK) && kdom < MAX_KEY_DOMAINS);
         if (r != CCID_OK) {
             mbedtls_rsa_free(&ctx);
             return SW_EXEC_ERROR();
         }
-        r = store_keys(&ctx, HSM_KEY_RSA, key_id);
+        r = store_keys(&ctx, PICO_KEYS_KEY_RSA, key_id);
+        if ((res_APDU_size = (uint16_t)asn1_cvc_aut(&ctx, PICO_KEYS_KEY_RSA, res_APDU, 4096, NULL, 0)) == 0) {
+            mbedtls_rsa_free(&ctx);
+            return SW_EXEC_ERROR();
+        }
         mbedtls_rsa_free(&ctx);
         if (r != CCID_OK) {
             return SW_EXEC_ERROR();
         }
     }
-    else if (key_type == HSM_KEY_EC) {
-        mbedtls_ecdsa_context ctx;
-        mbedtls_ecdsa_init(&ctx);
+    else if (key_type & PICO_KEYS_KEY_EC) {
+        mbedtls_ecp_keypair ctx;
+        mbedtls_ecp_keypair_init(&ctx);
         do {
-            r = dkek_decode_key(++kdom, &ctx, apdu.data, apdu.nc, NULL, &allowed, &allowed_len);
-        } while((r == CCID_ERR_FILE_NOT_FOUND || r == CCID_WRONG_DKEK) && kdom < MAX_KEY_DOMAINS);
+            r = dkek_decode_key((uint8_t)++kdom, &ctx, data, data_len, NULL, &allowed, &allowed_len);
+        } while ((r == CCID_ERR_FILE_NOT_FOUND || r == CCID_WRONG_DKEK) && kdom < MAX_KEY_DOMAINS);
         if (r != CCID_OK) {
-            mbedtls_ecdsa_free(&ctx);
+            mbedtls_ecp_keypair_free(&ctx);
             return SW_EXEC_ERROR();
         }
-        r = store_keys(&ctx, HSM_KEY_EC, key_id);
-        mbedtls_ecdsa_free(&ctx);
+        r = store_keys(&ctx, PICO_KEYS_KEY_EC, key_id);
+        if ((res_APDU_size = (uint16_t)asn1_cvc_aut(&ctx, PICO_KEYS_KEY_EC, res_APDU, 4096, NULL, 0)) == 0) {
+            mbedtls_ecp_keypair_free(&ctx);
+            return SW_EXEC_ERROR();
+        }
+        mbedtls_ecp_keypair_free(&ctx);
         if (r != CCID_OK) {
             return SW_EXEC_ERROR();
         }
     }
-    else if (key_type == HSM_KEY_AES) {
-        uint8_t aes_key[32];
+    else if (key_type & PICO_KEYS_KEY_AES) {
+        uint8_t aes_key[64];
         int key_size = 0, aes_type = 0;
         do {
-            r = dkek_decode_key(++kdom, aes_key, apdu.data, apdu.nc, &key_size, &allowed, &allowed_len);
-        } while((r == CCID_ERR_FILE_NOT_FOUND || r == CCID_WRONG_DKEK) && kdom < MAX_KEY_DOMAINS);
+            r = dkek_decode_key((uint8_t)++kdom,
+                                aes_key,
+                                data,
+                                data_len,
+                                &key_size,
+                                &allowed,
+                                &allowed_len);
+        } while ((r == CCID_ERR_FILE_NOT_FOUND || r == CCID_WRONG_DKEK) && kdom < MAX_KEY_DOMAINS);
         if (r != CCID_OK) {
             return SW_EXEC_ERROR();
         }
-        if (key_size == 32)
-            aes_type = HSM_KEY_AES_256;
-        else if (key_size == 24)
-            aes_type = HSM_KEY_AES_192;
-        else if (key_size == 16)
-            aes_type = HSM_KEY_AES_128;
-        else
+        if (key_size == 64) {
+            aes_type = PICO_KEYS_KEY_AES_512;
+        }
+        else if (key_size == 32) {
+            aes_type = PICO_KEYS_KEY_AES_256;
+        }
+        else if (key_size == 24) {
+            aes_type = PICO_KEYS_KEY_AES_192;
+        }
+        else if (key_size == 16) {
+            aes_type = PICO_KEYS_KEY_AES_128;
+        }
+        else {
             return SW_EXEC_ERROR();
+        }
         r = store_keys(aes_key, aes_type, key_id);
         if (r != CCID_OK) {
             return SW_EXEC_ERROR();
         }
     }
     if ((allowed != NULL && allowed_len > 0) || kdom >= 0) {
-        size_t meta_len = (allowed_len > 0 ? 2+allowed_len : 0) + (kdom >= 0 ? 3 : 0);
-        uint8_t *meta = (uint8_t *)calloc(1,meta_len), *m = meta;
+        uint16_t meta_len = (allowed_len > 0 ? 2 + allowed_len : 0) + (kdom >= 0 ? 3 : 0);
+        uint8_t *meta = (uint8_t *) calloc(1, meta_len), *m = meta;
         if (allowed_len > 0) {
             *m++ = 0x91;
-            *m++ = allowed_len;
+            *m++ = (uint8_t)allowed_len;
             memcpy(m, allowed, allowed_len); m += allowed_len;
         }
         if (kdom >= 0) {
             *m++ = 0x92;
             *m++ = 1;
-            *m++ = kdom;
+            *m++ = (uint8_t)kdom;
         }
         r = meta_add((KEY_PREFIX << 8) | key_id, meta, meta_len);
         free(meta);
-        if (r != CCID_OK)
+        if (r != CCID_OK) {
             return r;
+        }
     }
+    if (res_APDU_size > 0) {
+        file_t *fpk = file_new((EE_CERTIFICATE_PREFIX << 8) | key_id);
+        r = file_put_data(fpk, res_APDU, res_APDU_size);
+        if (r != 0) {
+            return SW_EXEC_ERROR();
+        }
+        res_APDU_size = 0;
+    }
+    low_flash_available();
     return SW_OK();
 }

src/hsm/cmd_key_wrap.c

@@ -19,27 +19,42 @@
 #include "sc_hsm.h"
 #include "asn1.h"
 #include "kek.h"
+#include "files.h"
 
 extern uint8_t get_key_domain(file_t *fkey);
 
 int cmd_key_wrap() {
-    int key_id = P1(apdu), r = 0;
-    if (P2(apdu) != 0x92)
+    int r = 0;
+    uint8_t key_id = P1(apdu);
+    if (P2(apdu) != 0x92) {
         return SW_WRONG_P1P2();
-    if (!isUserAuthenticated)
+    }
+    if (!isUserAuthenticated) {
         return SW_SECURITY_STATUS_NOT_SATISFIED();
-    file_t *ef = search_dynamic_file((KEY_PREFIX << 8) | key_id);
+    }
+    file_t *ef = search_file((KEY_PREFIX << 8) | key_id);
+    if (!ef) {
+        return SW_FILE_NOT_FOUND();
+    }
     uint8_t kdom = get_key_domain(ef);
-    if (!ef)
-        return SW_FILE_NOT_FOUND();
-    if (key_has_purpose(ef, ALGO_WRAP) == false)
+    if (kdom == 0xff) {
+        return SW_REFERENCE_NOT_FOUND();
+    }
+    file_t *tf_kd = search_file(EF_KEY_DOMAIN);
+    uint8_t *kdata = file_get_data(tf_kd), dkeks = kdata ? kdata[2 * kdom] : 0,
+            current_dkeks = kdata ? kdata[2 * kdom + 1] : 0;
+    if (dkeks != current_dkeks || dkeks == 0 || dkeks == 0xff) {
+        return SW_REFERENCE_NOT_FOUND();
+    }
+    if (key_has_purpose(ef, ALGO_WRAP) == false) {
         return SW_CONDITIONS_NOT_SATISFIED();
-    file_t *prkd = search_dynamic_file((PRKD_PREFIX << 8) | key_id);
-    if (!prkd)
+    }
+    file_t *prkd = search_file((PRKD_PREFIX << 8) | key_id);
+    if (!prkd) {
         return SW_FILE_NOT_FOUND();
+    }
     const uint8_t *dprkd = file_get_data(prkd);
-    size_t wrap_len = MAX_DKEK_ENCODE_KEY_BUFFER;
-    size_t tag_len = 0;
+    uint16_t wrap_len = MAX_DKEK_ENCODE_KEY_BUFFER, tag_len = 0;
     const uint8_t *meta_tag = get_meta_tag(ef, 0x91, &tag_len);
     if (*dprkd == P15_KEYTYPE_RSA) {
         mbedtls_rsa_context ctx;
@@ -47,47 +62,57 @@ int cmd_key_wrap() {
         r = load_private_key_rsa(&ctx, ef);
         if (r != CCID_OK) {
             mbedtls_rsa_free(&ctx);
-            if (r == CCID_VERIFICATION_FAILED)
+            if (r == CCID_VERIFICATION_FAILED) {
                 return SW_SECURE_MESSAGE_EXEC_ERROR();
+            }
             return SW_EXEC_ERROR();
         }
-        r = dkek_encode_key(kdom, &ctx, HSM_KEY_RSA, res_APDU, &wrap_len, meta_tag, tag_len);
+        r = dkek_encode_key(kdom, &ctx, PICO_KEYS_KEY_RSA, res_APDU, &wrap_len, meta_tag, tag_len);
         mbedtls_rsa_free(&ctx);
     }
     else if (*dprkd == P15_KEYTYPE_ECC) {
-        mbedtls_ecdsa_context ctx;
-        mbedtls_ecdsa_init(&ctx);
-        r = load_private_key_ecdsa(&ctx, ef);
+        mbedtls_ecp_keypair ctx;
+        mbedtls_ecp_keypair_init(&ctx);
+        r = load_private_key_ec(&ctx, ef);
         if (r != CCID_OK) {
-            mbedtls_ecdsa_free(&ctx);
-            if (r == CCID_VERIFICATION_FAILED)
+            mbedtls_ecp_keypair_free(&ctx);
+            if (r == CCID_VERIFICATION_FAILED) {
                 return SW_SECURE_MESSAGE_EXEC_ERROR();
+            }
             return SW_EXEC_ERROR();
         }
-        r = dkek_encode_key(kdom, &ctx, HSM_KEY_EC, res_APDU, &wrap_len, meta_tag, tag_len);
-        mbedtls_ecdsa_free(&ctx);
+        r = dkek_encode_key(kdom, &ctx, PICO_KEYS_KEY_EC, res_APDU, &wrap_len, meta_tag, tag_len);
+        mbedtls_ecp_keypair_free(&ctx);
     }
     else if (*dprkd == P15_KEYTYPE_AES) {
-        uint8_t kdata[32]; //maximum AES key size
-        if (wait_button_pressed() == true) //timeout
+        uint8_t kdata_aes[64]; //maximum AES key size
+        if (wait_button_pressed() == true) { //timeout
             return SW_SECURE_MESSAGE_EXEC_ERROR();
+        }
 
-        int key_size = file_get_size(ef), aes_type = HSM_KEY_AES;
-        memcpy(kdata, file_get_data(ef), key_size);
-        if (mkek_decrypt(kdata, key_size) != 0) {
+        uint16_t key_size = file_get_size(ef), aes_type = PICO_KEYS_KEY_AES;
+        memcpy(kdata_aes, file_get_data(ef), key_size);
+        if (mkek_decrypt(kdata_aes, key_size) != 0) {
             return SW_EXEC_ERROR();
         }
-        if (key_size == 32)
-            aes_type = HSM_KEY_AES_256;
-        else if (key_size == 24)
-            aes_type = HSM_KEY_AES_192;
-        else if (key_size == 16)
-            aes_type = HSM_KEY_AES_128;
-        r = dkek_encode_key(kdom, kdata, aes_type, res_APDU, &wrap_len, meta_tag, tag_len);
-        mbedtls_platform_zeroize(kdata, sizeof(kdata));
+        if (key_size == 64) {
+            aes_type = PICO_KEYS_KEY_AES_512;
+        }
+        else if (key_size == 32) {
+            aes_type = PICO_KEYS_KEY_AES_256;
+        }
+        else if (key_size == 24) {
+            aes_type = PICO_KEYS_KEY_AES_192;
+        }
+        else if (key_size == 16) {
+            aes_type = PICO_KEYS_KEY_AES_128;
+        }
+        r = dkek_encode_key(kdom, kdata_aes, aes_type, res_APDU, &wrap_len, meta_tag, tag_len);
+        mbedtls_platform_zeroize(kdata_aes, sizeof(kdata_aes));
     }
-    if (r != CCID_OK)
+    if (r != CCID_OK) {
         return SW_EXEC_ERROR();
+    }
     res_APDU_size = wrap_len;
     return SW_OK();
 }

src/hsm/cmd_keypair_gen.c

@@ -26,64 +26,72 @@
 
 int cmd_keypair_gen() {
     uint8_t key_id = P1(apdu);
-    if (!isUserAuthenticated)
+    if (!isUserAuthenticated) {
         return SW_SECURITY_STATUS_NOT_SATISFIED();
+    }
     int ret = 0;
 
-    size_t tout = 0;
     //sc_asn1_print_tags(apdu.data, apdu.nc);
-    uint8_t *p = NULL;
-    if (asn1_find_tag(apdu.data, apdu.nc, 0x7f49, &tout, &p) && tout > 0 && p != NULL) {
-        size_t oid_len = 0;
-        uint8_t *oid = NULL;
-        if (asn1_find_tag(p, tout, 0x6, &oid_len, &oid) && oid_len > 0 && oid != NULL) {
-            if (memcmp(oid, OID_ID_TA_RSA_V1_5_SHA_256, oid_len) == 0) { //RSA
-                size_t ex_len = 3, ks_len = 2;
-                uint8_t *ex = NULL, *ks = NULL;
+    //DEBUG_DATA(apdu.data,apdu.nc);
+    asn1_ctx_t ctxi, ctxo = { 0 };
+    asn1_ctx_init(apdu.data, (uint16_t)apdu.nc, &ctxi);
+    if (asn1_find_tag(&ctxi, 0x7f49, &ctxo) && asn1_len(&ctxo) > 0) {
+        asn1_ctx_t oid = { 0 };
+        if (asn1_find_tag(&ctxo, 0x6, &oid) && asn1_len(&oid) > 0) {
+            if (memcmp(oid.data, OID_ID_TA_RSA_V1_5_SHA_256, oid.len) == 0) { //RSA
+                asn1_ctx_t ex = { 0 }, ks = { 0 };
                 uint32_t exponent = 65537, key_size = 2048;
-                if (asn1_find_tag(p, tout, 0x82, &ex_len, &ex) && ex_len > 0 && ex != NULL) {
-                    uint8_t *dt = ex;
-                    exponent = 0;
-                    for (int i = 0; i < ex_len; i++) {
-                        exponent = (exponent << 8) | *dt++;
-                    }
+                if (asn1_find_tag(&ctxo, 0x82, &ex) && asn1_len(&ex) > 0) {
+                    exponent = asn1_get_uint(&ex);
                 }
-                if (asn1_find_tag(p, tout, 0x2, &ks_len, &ks) && ks_len > 0 && ks != NULL) {
-                    uint8_t *dt = ks;
-                    key_size = 0;
-                    for (int i = 0; i < ks_len; i++) {
-                        key_size = (key_size << 8) | *dt++;
-                    }
+                if (asn1_find_tag(&ctxo, 0x2, &ks) && asn1_len(&ks) > 0) {
+                    key_size = asn1_get_uint(&ks);
                 }
-                printf("KEYPAIR RSA %ld (%lx)\r\n",key_size,exponent);
+                printf("KEYPAIR RSA %lu (%lx)\n",
+                       (unsigned long) key_size,
+                       (unsigned long) exponent);
                 mbedtls_rsa_context rsa;
                 mbedtls_rsa_init(&rsa);
                 uint8_t index = 0;
                 ret = mbedtls_rsa_gen_key(&rsa, random_gen, &index, key_size, exponent);
                 if (ret != 0) {
-                        mbedtls_rsa_free(&rsa);
+                    mbedtls_rsa_free(&rsa);
                     return SW_EXEC_ERROR();
                 }
-                if ((res_APDU_size = asn1_cvc_aut(&rsa, HSM_KEY_RSA, res_APDU, 4096, NULL, 0)) == 0) {
+                if ((res_APDU_size =
+                         (uint16_t)asn1_cvc_aut(&rsa, PICO_KEYS_KEY_RSA, res_APDU, 4096, NULL, 0)) == 0) {
                     return SW_EXEC_ERROR();
                 }
-	            ret = store_keys(&rsa, HSM_KEY_RSA, key_id);
-	            if (ret != CCID_OK) {
+                ret = store_keys(&rsa, PICO_KEYS_KEY_RSA, key_id);
+                if (ret != CCID_OK) {
                     mbedtls_rsa_free(&rsa);
                     return SW_EXEC_ERROR();
                 }
                 mbedtls_rsa_free(&rsa);
             }
-            else if (memcmp(oid, OID_ID_TA_ECDSA_SHA_256,MIN(oid_len,10)) == 0) { //ECC
-                size_t prime_len;
-                uint8_t *prime = NULL;
-                if (asn1_find_tag(p, tout, 0x81, &prime_len, &prime) != true)
+            else if (memcmp(oid.data, OID_ID_TA_ECDSA_SHA_256, MIN(oid.len, 10)) == 0) {   //ECC
+                asn1_ctx_t prime = { 0 };
+                if (asn1_find_tag(&ctxo, 0x81, &prime) != true) {
                     return SW_WRONG_DATA();
-                mbedtls_ecp_group_id ec_id = ec_get_curve_from_prime(prime, prime_len);
-                printf("KEYPAIR ECC %d\r\n",ec_id);
+                }
+                mbedtls_ecp_group_id ec_id = ec_get_curve_from_prime(prime.data, prime.len);
+                printf("KEYPAIR ECC %d\n", ec_id);
                 if (ec_id == MBEDTLS_ECP_DP_NONE) {
                     return SW_FUNC_NOT_SUPPORTED();
                 }
+                if (ec_id == MBEDTLS_ECP_DP_CURVE25519 || ec_id == MBEDTLS_ECP_DP_CURVE448) {
+                    asn1_ctx_t g = { 0 };
+                    if (asn1_find_tag(&ctxo, 0x83, &g) != true) {
+                        return SW_WRONG_DATA();
+                    }
+                    if (ec_id == MBEDTLS_ECP_DP_CURVE25519 && (g.data[0] != 9)) {
+                        ec_id = MBEDTLS_ECP_DP_ED25519;
+                    }
+                    else if (ec_id == MBEDTLS_ECP_DP_CURVE448 && (g.len != 56 || g.data[0] != 5)) {
+                        ec_id = MBEDTLS_ECP_DP_ED448;
+                    }
+                }
+                printf("KEYPAIR ECC %d\r\n", ec_id);
                 mbedtls_ecdsa_context ecdsa;
                 mbedtls_ecdsa_init(&ecdsa);
                 uint8_t index = 0;
@@ -92,58 +100,71 @@ int cmd_keypair_gen() {
                     mbedtls_ecdsa_free(&ecdsa);
                     return SW_EXEC_ERROR();
                 }
-                size_t l91 = 0, ext_len = 0;
-                uint8_t *p91 = NULL, *ext = NULL;
-                if (asn1_find_tag(apdu.data, apdu.nc, 0x91, &l91, &p91) && p91 != NULL && l91 > 0) {
-                    for (int n = 0; n < l91; n++) {
-                        if (p91[n] == ALGO_EC_DH_XKEK) {
-                            size_t l92 = 0;
-                            uint8_t *p92 = NULL;
-                            if (!asn1_find_tag(apdu.data, apdu.nc, 0x92, &l92, &p92) || p92 == NULL || l92 == 0)
+                asn1_ctx_t a91 = { 0 }, ext = { 0 };
+                if (asn1_find_tag(&ctxi, 0x91, &a91) && asn1_len(&a91) > 0) {
+                    for (size_t n = 0; n < a91.len; n++) {
+                        if (a91.data[n] == ALGO_EC_DH_XKEK) {
+                            asn1_ctx_t a92 = {0};
+                            if (!asn1_find_tag(&ctxi, 0x92, &a92) || asn1_len(&a92) == 0) {
                                 return SW_WRONG_DATA();
-                            if (p92[0] > MAX_KEY_DOMAINS)
+                            }
+                            if (a92.data[0] > MAX_KEY_DOMAINS) {
                                 return SW_WRONG_DATA();
-                            file_t *tf_xkek = search_dynamic_file(EF_XKEK+p92[0]);
-                            if (!tf_xkek)
+                            }
+                            file_t *tf_xkek = search_file(EF_XKEK + a92.data[0]);
+                            if (!tf_xkek) {
                                 return SW_WRONG_DATA();
-                            ext_len = 2+2+strlen(OID_ID_KEY_DOMAIN_UID)+2+file_get_size(tf_xkek);
-                            ext = (uint8_t *)calloc(1, ext_len);
-                            uint8_t *pe = ext;
+                            }
+                            ext.len = 2 + 2 + (uint16_t)strlen(OID_ID_KEY_DOMAIN_UID) + 2 + file_get_size(
+                                tf_xkek);
+                            ext.data = (uint8_t *) calloc(1, ext.len);
+                            uint8_t *pe = ext.data;
                             *pe++ = 0x73;
-                            *pe++ = ext_len-2;
+                            *pe++ = (uint8_t)ext.len - 2;
                             *pe++ = 0x6;
-                            *pe++ = strlen(OID_ID_KEY_DOMAIN_UID);
+                            *pe++ = (uint8_t)strlen(OID_ID_KEY_DOMAIN_UID);
                             memcpy(pe, OID_ID_KEY_DOMAIN_UID, strlen(OID_ID_KEY_DOMAIN_UID));
                             pe += strlen(OID_ID_KEY_DOMAIN_UID);
                             *pe++ = 0x80;
-                            *pe++ = file_get_size(tf_xkek);
+                            *pe++ = (uint8_t)file_get_size(tf_xkek);
                             memcpy(pe, file_get_data(tf_xkek), file_get_size(tf_xkek));
                         }
                     }
                 }
-                if ((res_APDU_size = asn1_cvc_aut(&ecdsa, HSM_KEY_EC, res_APDU, 4096, ext, ext_len)) == 0) {
-                    return SW_EXEC_ERROR();
-                }
-	            ret = store_keys(&ecdsa, HSM_KEY_EC, key_id);
-	            if (ret != CCID_OK) {
+                if ((res_APDU_size =
+                         (uint16_t)asn1_cvc_aut(&ecdsa, PICO_KEYS_KEY_EC, res_APDU, 4096, ext.data, ext.len)) == 0) {
+                    if (ext.data) {
+                        free(ext.data);
+                    }
                     mbedtls_ecdsa_free(&ecdsa);
                     return SW_EXEC_ERROR();
                 }
+                if (ext.data) {
+                    free(ext.data);
+                }
+                ret = store_keys(&ecdsa, PICO_KEYS_KEY_EC, key_id);
                 mbedtls_ecdsa_free(&ecdsa);
+                if (ret != CCID_OK) {
+                    return SW_EXEC_ERROR();
+                }
             }
 
         }
     }
-    else
+    else {
         return SW_WRONG_DATA();
-    if (find_and_store_meta_key(key_id) != CCID_OK)
+    }
+    if (find_and_store_meta_key(key_id) != CCID_OK) {
         return SW_EXEC_ERROR();
+    }
     file_t *fpk = file_new((EE_CERTIFICATE_PREFIX << 8) | key_id);
-    ret = flash_write_data_to_file(fpk, res_APDU, res_APDU_size);
-    if (ret != 0)
+    ret = file_put_data(fpk, res_APDU, res_APDU_size);
+    if (ret != 0) {
         return SW_EXEC_ERROR();
-    if (apdu.ne == 0)
+    }
+    if (apdu.ne == 0) {
         apdu.ne = res_APDU_size;
+    }
     low_flash_available();
     return SW_OK();
 }

src/hsm/cmd_list_keys.c

@@ -18,26 +18,30 @@
 #include "sc_hsm.h"
 #include "files.h"
 
-int cmd_list_keys()
-{
+int cmd_list_keys() {
     /* First we send DEV private key */
     /* Both below conditions should be always TRUE */
-    if (search_by_fid(EF_PRKD_DEV, NULL, SPECIFY_EF)) {
+    if (search_file(EF_PRKD_DEV)) {
         res_APDU[res_APDU_size++] = EF_PRKD_DEV >> 8;
         res_APDU[res_APDU_size++] = EF_PRKD_DEV & 0xff;
     }
-    if (search_by_fid(EF_KEY_DEV, NULL, SPECIFY_EF)) {
+    if (search_file(EF_KEY_DEV)) {
         res_APDU[res_APDU_size++] = EF_KEY_DEV >> 8;
         res_APDU[res_APDU_size++] = EF_KEY_DEV & 0xff;
     }
     //first CC
+    for (int i = 0; i < dynamic_files; i++) {
+        file_t *f = &dynamic_file[i];
+        if ((f->fid & 0xff00) == (KEY_PREFIX << 8)) {
+            res_APDU[res_APDU_size++] = KEY_PREFIX;
+            res_APDU[res_APDU_size++] = f->fid & 0xff;
+        }
+    }
     for (int i = 0; i < dynamic_files; i++) {
         file_t *f = &dynamic_file[i];
         if ((f->fid & 0xff00) == (PRKD_PREFIX << 8)) {
             res_APDU[res_APDU_size++] = PRKD_PREFIX;
             res_APDU[res_APDU_size++] = f->fid & 0xff;
-            res_APDU[res_APDU_size++] = KEY_PREFIX;
-            res_APDU[res_APDU_size++] = f->fid & 0xff;
         }
     }
     //second CD
@@ -56,5 +60,11 @@ int cmd_list_keys()
             res_APDU[res_APDU_size++] = f->fid & 0xff;
         }
     }
+#if !defined(ENABLE_EMULATION) && !defined(ESP_PLATFORM)
+    if ((apdu.rlen + 2 + 10) % 64 == 0) { // FIX for strange behaviour with PSCS and multiple of 64
+        res_APDU[res_APDU_size++] = 0;
+        res_APDU[res_APDU_size++] = 0;
+    }
+#endif
     return SW_OK();
 }

src/hsm/cmd_mse.c

@@ -27,17 +27,22 @@ file_t *ef_puk_aut = NULL;
 int cmd_mse() {
     int p1 = P1(apdu);
     int p2 = P2(apdu);
-    if (p2 != 0xA4 && p2 != 0xA6 && p2 != 0xAA && p2 != 0xB4 && p2 != 0xB6 && p2 != 0xB8)
+    if (p2 != 0xA4 && p2 != 0xA6 && p2 != 0xAA && p2 != 0xB4 && p2 != 0xB6 && p2 != 0xB8) {
         return SW_INCORRECT_P1P2();
+    }
     if (p1 & 0x1) { //SET
         uint16_t tag = 0x0;
         uint8_t *tag_data = NULL, *p = NULL;
-        size_t tag_len = 0;
-        while (walk_tlv(apdu.data, apdu.nc, &p, &tag, &tag_len, &tag_data)) {
+        uint16_t tag_len = 0;
+        asn1_ctx_t ctxi;
+        asn1_ctx_init(apdu.data, (uint16_t)apdu.nc, &ctxi);
+        while (walk_tlv(&ctxi, &p, &tag, &tag_len, &tag_data)) {
             if (tag == 0x80) {
                 if (p2 == 0xA4) {
-                    if (tag_len == 10 && memcmp(tag_data, OID_ID_CA_ECDH_AES_CBC_CMAC_128, tag_len) == 0)
+                    if (tag_len == 10 &&
+                        memcmp(tag_data, OID_ID_CA_ECDH_AES_CBC_CMAC_128, tag_len) == 0) {
                         sm_set_protocol(MSE_AES);
+                    }
                 }
             }
             else if (tag == 0x83) {
@@ -46,20 +51,28 @@ int cmd_mse() {
                 }
                 else {
                     if (p2 == 0xB6) {
-                        if (puk_store_select_chr(tag_data) == CCID_OK)
+                        if (puk_store_select_chr(tag_data) == CCID_OK) {
                             return SW_OK();
+                        }
                     }
-                    else if (p2 == 0xA4) { /* Aut */
-                        for (int i = 0; i < MAX_PUK; i++) {
-                            file_t *ef = search_dynamic_file(EF_PUK+i);
-                            if (!ef)
+                    else if (p2 == 0xA4) {   /* Aut */
+                        for (uint8_t i = 0; i < MAX_PUK; i++) {
+                            file_t *ef = search_file(EF_PUK + i);
+                            if (!ef) {
                                 break;
-                            if (ef->data == NULL || file_get_size(ef) == 0)
+                            }
+                            if (!file_has_data(ef)) {
                                 break;
-                            size_t chr_len = 0;
-                            const uint8_t *chr = cvc_get_chr(file_get_data(ef), file_get_size(ef), &chr_len);
+                            }
+                            uint16_t chr_len = 0;
+                            const uint8_t *chr = cvc_get_chr(file_get_data(ef),
+                                                             file_get_size(ef),
+                                                             &chr_len);
                             if (memcmp(chr, tag_data, chr_len) == 0) {
                                 ef_puk_aut = ef;
+                                if (puk_status[i] == 1) {
+                                    return SW_CONDITIONS_NOT_SATISFIED(); // It is correct
+                                }
                                 return SW_OK();
                             }
                         }
@@ -69,7 +82,8 @@ int cmd_mse() {
             }
         }
     }
-    else
+    else {
         return SW_INCORRECT_P1P2();
+    }
     return SW_OK();
 }

src/hsm/cmd_pso.c

@@ -20,67 +20,77 @@
 #include "asn1.h"
 #include "cvc.h"
 
-extern int add_cert_puk_store(const uint8_t *data, size_t data_len, bool copy);
+extern int add_cert_puk_store(const uint8_t *data, uint16_t data_len, bool copy);
 extern PUK *current_puk;
 
 int cmd_pso() {
     uint8_t p1 = P1(apdu), p2 = P2(apdu);
     if (p1 == 0x0 && (p2 == 0x92 || p2 == 0xAE || p2 == 0xBE)) { /* Verify certificate */
-        if (apdu.nc == 0)
+        if (apdu.nc == 0) {
             return SW_WRONG_LENGTH();
-        if (current_puk == NULL)
+        }
+        if (current_puk == NULL) {
             return SW_REFERENCE_NOT_FOUND();
+        }
         if (apdu.data[0] != 0x7F || apdu.data[1] != 0x21) {
-            uint8_t tlv_len = 2+format_tlv_len(apdu.nc, NULL);
-            memmove(apdu.data+tlv_len, apdu.data, apdu.nc);
+            uint8_t tlv_len = 2 + format_tlv_len((uint16_t)apdu.nc, NULL);
+            memmove(apdu.data + tlv_len, apdu.data, apdu.nc);
             memcpy(apdu.data, "\x7F\x21", 2);
-            format_tlv_len(apdu.nc, apdu.data+2);
+            format_tlv_len((uint16_t)apdu.nc, apdu.data + 2);
             apdu.nc += tlv_len;
         }
-        int r = cvc_verify(apdu.data, apdu.nc, current_puk->cvcert, current_puk->cvcert_len);
+        int r = cvc_verify(apdu.data, (uint16_t)apdu.nc, current_puk->cvcert, current_puk->cvcert_len);
         if (r != CCID_OK) {
-            if (r == CCID_WRONG_DATA)
+            if (r == CCID_WRONG_DATA) {
                 return SW_DATA_INVALID();
-            else if (r == CCID_WRONG_SIGNATURE)
+            }
+            else if (r == CCID_WRONG_SIGNATURE) {
                 return SW_CONDITIONS_NOT_SATISFIED();
+            }
             return SW_EXEC_ERROR();
         }
-        for (int i = 0; i < 0xfe; i++) {
+        for (uint8_t i = 0; i < 0xfe; i++) {
             uint16_t fid = (CA_CERTIFICATE_PREFIX << 8) | i;
-            file_t *ca_ef = search_dynamic_file(fid);
+            file_t *ca_ef = search_file(fid);
             if (!ca_ef) {
                 ca_ef = file_new(fid);
-                flash_write_data_to_file(ca_ef, apdu.data, apdu.nc);
-                if (add_cert_puk_store(file_get_data(ca_ef), file_get_size(ca_ef), false) != CCID_OK)
+                file_put_data(ca_ef, apdu.data, (uint16_t)apdu.nc);
+                if (add_cert_puk_store(file_get_data(ca_ef), file_get_size(ca_ef),
+                                       false) != CCID_OK) {
                     return SW_FILE_FULL();
+                }
 
-                size_t chr_len = 0;
-                const uint8_t *chr = cvc_get_chr(apdu.data, apdu.nc, &chr_len);
-                if (chr == NULL)
+                uint16_t chr_len = 0;
+                const uint8_t *chr = cvc_get_chr(apdu.data, (uint16_t)apdu.nc, &chr_len);
+                if (chr == NULL) {
                     return SW_WRONG_DATA();
-                size_t puk_len = 0, puk_bin_len = 0;
-                const uint8_t *puk = cvc_get_pub(apdu.data, apdu.nc, &puk_len), *puk_bin = NULL;
-                if (puk == NULL)
+                }
+                uint16_t puk_len = 0, puk_bin_len = 0;
+                const uint8_t *puk = cvc_get_pub(apdu.data, (uint16_t)apdu.nc, &puk_len), *puk_bin = NULL;
+                if (puk == NULL) {
                     return SW_WRONG_DATA();
-                size_t oid_len = 0;
+                }
+                uint16_t oid_len = 0;
                 const uint8_t *oid = cvc_get_field(puk, puk_len, &oid_len, 0x6);
-                if (oid == NULL)
+                if (oid == NULL) {
                     return SW_WRONG_DATA();
+                }
                 if (memcmp(oid, OID_ID_TA_RSA, 9) == 0) { //RSA
                     puk_bin = cvc_get_field(puk, puk_len, &puk_bin_len, 0x81);
-                    if (!puk_bin)
+                    if (!puk_bin) {
                         return SW_WRONG_DATA();
+                    }
                 }
-                else if (memcmp(oid, OID_ID_TA_ECDSA, 9) == 0) { //ECC
-                    mbedtls_ecp_group_id ec_id = cvc_inherite_ec_group(apdu.data, apdu.nc);
+                else if (memcmp(oid, OID_ID_TA_ECDSA, 9) == 0) {   //ECC
+                    mbedtls_ecp_group_id ec_id = cvc_inherite_ec_group(apdu.data, (uint16_t)apdu.nc);
                     mbedtls_ecp_group grp;
                     mbedtls_ecp_group_init(&grp);
                     if (mbedtls_ecp_group_load(&grp, ec_id) != 0) {
                         mbedtls_ecp_group_free(&grp);
                         return SW_WRONG_DATA();
                     }
-                    size_t plen = mbedtls_mpi_size(&grp.P);
-                    size_t t86_len = 0;
+                    uint16_t plen = (uint16_t)mbedtls_mpi_size(&grp.P);
+                    uint16_t t86_len = 0;
                     const uint8_t *t86 = cvc_get_field(puk, puk_len, &t86_len, 0x86);
                     if (mbedtls_ecp_get_type(&grp) == MBEDTLS_ECP_TYPE_MONTGOMERY) {
                         if (plen != t86_len) {
@@ -92,13 +102,13 @@ int cmd_pso() {
                     }
                     else if (mbedtls_ecp_get_type(&grp) == MBEDTLS_ECP_TYPE_SHORT_WEIERSTRASS) {
                         if (t86[0] == 0x2 || t86[0] == 0x3) {
-                            if (t86_len != plen+1) {
+                            if (t86_len != plen + 1) {
                                 mbedtls_ecp_group_free(&grp);
                                 return SW_WRONG_DATA();
                             }
                         }
                         else if (t86[0] == 0x4) {
-                            if (t86_len != 2*plen+1) {
+                            if (t86_len != 2 * plen + 1) {
                                 mbedtls_ecp_group_free(&grp);
                                 return SW_WRONG_DATA();
                             }
@@ -107,30 +117,45 @@ int cmd_pso() {
                             mbedtls_ecp_group_free(&grp);
                             return SW_WRONG_DATA();
                         }
-                        puk_bin = t86+1;
+                        puk_bin = t86 + 1;
                         puk_bin_len = plen;
                     }
                     mbedtls_ecp_group_free(&grp);
-                    if (!puk_bin)
+                    if (!puk_bin) {
                         return SW_WRONG_DATA();
+                    }
                 }
                 file_t *cd_ef = file_new((CD_PREFIX << 8) | i);
-                size_t cd_len = asn1_build_cert_description(chr, chr_len, puk_bin, puk_bin_len, fid, NULL, 0);
-                if (cd_len == 0)
+                uint16_t cd_len = (uint16_t)asn1_build_cert_description(chr,
+                                                            chr_len,
+                                                            puk_bin,
+                                                            puk_bin_len,
+                                                            fid,
+                                                            NULL,
+                                                            0);
+                if (cd_len == 0) {
                     return SW_EXEC_ERROR();
-                uint8_t *buf = (uint8_t *)calloc(cd_len, sizeof(uint8_t));
-                int r = asn1_build_cert_description(chr, chr_len, puk_bin, puk_bin_len, fid, buf, cd_len);
-                flash_write_data_to_file(cd_ef, buf, cd_len);
+                }
+                uint8_t *buf = (uint8_t *) calloc(cd_len, sizeof(uint8_t));
+                r = (int)asn1_build_cert_description(chr,
+                                                    chr_len,
+                                                    puk_bin,
+                                                    puk_bin_len,
+                                                    fid,
+                                                    buf,
+                                                    cd_len);
+                file_put_data(cd_ef, buf, cd_len);
                 free(buf);
-                if (r == 0)
+                if (r == 0) {
                     return SW_EXEC_ERROR();
+                }
                 low_flash_available();
                 break;
             }
         }
-        return SW_OK();
     }
-    else
+    else {
         return SW_INCORRECT_P1P2();
+    }
     return SW_OK();
 }

src/hsm/cmd_puk_auth.c

@@ -21,52 +21,65 @@
 
 int cmd_puk_auth() {
     uint8_t p1 = P1(apdu), p2 = P2(apdu);
-    file_t *ef_puk = search_by_fid(EF_PUKAUT, NULL, SPECIFY_EF);
-    if (!ef_puk || !ef_puk->data || file_get_size(ef_puk) == 0)
-        return SW_FILE_NOT_FOUND();
+    file_t *ef_puk = search_file(EF_PUKAUT);
+    if (!file_has_data(ef_puk)) {
+        if (apdu.nc > 0) {
+            return SW_FILE_NOT_FOUND();
+        }
+        return SW_INCORRECT_P1P2();
+    }
     uint8_t *puk_data = file_get_data(ef_puk);
     if (apdu.nc > 0) {
         if (p1 == 0x0 || p1 == 0x1) {
             file_t *ef = NULL;
             if (p1 == 0x0) { /* Add */
-                if (p2 != 0x0)
+                if (p2 != 0x0) {
                     return SW_INCORRECT_P1P2();
-                for (int i = 0; i < puk_data[0]; i++) {
-                    ef = search_dynamic_file(EF_PUK+i);
-                    if (!ef) /* Never should not happen */
-                        return SW_MEMORY_FAILURE();
-                    if (ef->data == NULL || file_get_size(ef) == 0) /* found first empty slot */
-                        break;
                 }
-                uint8_t *tmp = (uint8_t *)calloc(file_get_size(ef_puk), sizeof(uint8_t));
+                for (uint8_t i = 0; i < puk_data[0]; i++) {
+                    ef = search_file(EF_PUK + i);
+                    if (!ef) { /* Never should not happen */
+                        return SW_MEMORY_FAILURE();
+                    }
+                    if (!file_has_data(ef)) { /* found first empty slot */
+                        break;
+                    }
+                }
+                uint8_t *tmp = (uint8_t *) calloc(file_get_size(ef_puk), sizeof(uint8_t));
                 memcpy(tmp, puk_data, file_get_size(ef_puk));
-                tmp[1] = puk_data[1]-1;
-                flash_write_data_to_file(ef_puk, tmp, file_get_size(ef_puk));
+                tmp[1] = puk_data[1] - 1;
+                file_put_data(ef_puk, tmp, file_get_size(ef_puk));
                 puk_data = file_get_data(ef_puk);
                 free(tmp);
             }
-            else if (p1 == 0x1) { /* Replace */
-                if (p2 >= puk_data[0])
+            else if (p1 == 0x1) {   /* Replace */
+                if (p2 >= puk_data[0]) {
                     return SW_INCORRECT_P1P2();
-                ef = search_dynamic_file(EF_PUK+p2);
-                if (!ef) /* Never should not happen */
+                }
+                ef = search_file(EF_PUK + p2);
+                if (!ef) { /* Never should not happen */
                     return SW_MEMORY_FAILURE();
+                }
             }
-            flash_write_data_to_file(ef, apdu.data, apdu.nc);
+            file_put_data(ef, apdu.data, (uint16_t)apdu.nc);
             low_flash_available();
         }
-        else
+        else {
             return SW_INCORRECT_P1P2();
+        }
     }
     if (p1 == 0x2) {
-        if (p2 >= puk_data[0])
+        if (p2 >= puk_data[0]) {
             return SW_INCORRECT_P1P2();
-        file_t *ef = search_dynamic_file(EF_PUK+p2);
-        if (!ef)
+        }
+        file_t *ef = search_file(EF_PUK + p2);
+        if (!ef) {
             return SW_INCORRECT_P1P2();
-        if (ef->data == NULL || file_get_size(ef) == 0)
+        }
+        if (!file_has_data(ef)) {
             return SW_REFERENCE_NOT_FOUND();
-        size_t chr_len = 0;
+        }
+        uint16_t chr_len = 0;
         const uint8_t *chr = cvc_get_chr(file_get_data(ef), file_get_size(ef), &chr_len);
         if (chr) {
             memcpy(res_APDU, chr, chr_len);
@@ -77,8 +90,9 @@ int cmd_puk_auth() {
     else {
         memcpy(res_APDU, puk_data, 3);
         res_APDU[3] = 0;
-        for (int i = 0; i < puk_data[0]; i++)
+        for (int i = 0; i < puk_data[0]; i++) {
             res_APDU[3] += puk_status[i];
+        }
         res_APDU_size = 4;
     }
     return SW_OK();

src/hsm/cmd_read_binary.c

@@ -18,16 +18,15 @@
 #include "sc_hsm.h"
 
 int cmd_read_binary() {
-    uint16_t fid = 0x0;
-    uint32_t offset = 0;
+    uint16_t offset = 0;
     uint8_t ins = INS(apdu), p1 = P1(apdu), p2 = P2(apdu);
     const file_t *ef = NULL;
 
-    if ((ins & 0x1) == 0)
-    {
+    if ((ins & 0x1) == 0) {
         if ((p1 & 0x80) != 0) {
-            if (!(ef = search_by_fid(p1&0x1f, NULL, SPECIFY_EF)))
-                return SW_FILE_NOT_FOUND ();
+            if (!(ef = search_file(p1 & 0x1f))) {
+                return SW_FILE_NOT_FOUND();
+            }
             offset = p2;
         }
         else {
@@ -37,52 +36,61 @@ int cmd_read_binary() {
     }
     else {
         if (p1 == 0 && (p2 & 0xE0) == 0 && (p2 & 0x1f) != 0 && (p2 & 0x1f) != 0x1f) {
-            if (!(ef = search_by_fid(p2&0x1f, NULL, SPECIFY_EF)))
-                return SW_FILE_NOT_FOUND ();
+            if (!(ef = search_file(p2 & 0x1f))) {
+                return SW_FILE_NOT_FOUND();
+            }
         }
         else {
             uint16_t file_id = make_uint16_t(p1, p2); // & 0x7fff;
-            if (file_id == 0x0)
+            if (file_id == 0x0) {
                 ef = currentEF;
-            else if (!(ef = search_by_fid(file_id, NULL, SPECIFY_EF)) && !(ef = search_dynamic_file(file_id)))
-                return SW_FILE_NOT_FOUND ();
+            }
+            else if (!(ef = search_file(file_id))) {
+                return SW_FILE_NOT_FOUND();
+            }
 
-            if (apdu.data[0] != 0x54)
+            if (apdu.data[0] != 0x54) {
                 return SW_WRONG_DATA();
+            }
 
             offset = 0;
-            for (int d = 0; d < apdu.data[1]; d++)
-                offset |= apdu.data[2+d]<<(apdu.data[1]-1-d)*8;
+            for (int d = 0; d < apdu.data[1]; d++) {
+                offset |= apdu.data[2 + d] << (apdu.data[1] - 1 - d) * 8;
+            }
         }
     }
 
-    if ((fid >> 8) == KEY_PREFIX || !authenticate_action(ef, ACL_OP_READ_SEARCH)) {
+    if ((ef->fid >> 8) == KEY_PREFIX || !authenticate_action(ef, ACL_OP_READ_SEARCH)) {
         return SW_SECURITY_STATUS_NOT_SATISFIED();
     }
     if (ef->data) {
         if ((ef->type & FILE_DATA_FUNC) == FILE_DATA_FUNC) {
-            uint16_t data_len = ((int (*)(const file_t *, int))(ef->data))((const file_t *)ef, 1); //already copies content to res_APDU
-            if (offset > data_len)
+            uint16_t data_len = (uint16_t)((int (*)(const file_t *, int))(ef->data))((const file_t *) ef, 1); //already copies content to res_APDU
+            if (offset > data_len) {
                 return SW_WRONG_P1P2();
-            uint16_t maxle = data_len-offset;
-            if (apdu.ne > maxle)
+            }
+            uint16_t maxle = data_len - offset;
+            if (apdu.ne > maxle) {
                 apdu.ne = maxle;
+            }
             if (offset) {
-                memmove(res_APDU, res_APDU+offset, res_APDU_size-offset);
+                memmove(res_APDU, res_APDU + offset, res_APDU_size - offset);
                 //res_APDU += offset;
                 res_APDU_size -= offset;
             }
         }
         else {
             uint16_t data_len = file_get_size(ef);
-            if (offset > data_len)
-                return SW_WRONG_P1P2();
+            if (offset > data_len) {
+                return SW_WARNING_EOF();
+            }
 
-            uint16_t maxle = data_len-offset;
-            if (apdu.ne > maxle)
-                apdu.ne = maxle;
-            memcpy(res_APDU, file_get_data(ef)+offset, data_len-offset);
-            res_APDU_size = data_len-offset;
+            //uint16_t maxle = data_len - offset;
+            //if (apdu.ne > maxle) {
+            //    apdu.ne = maxle;
+            //}
+            memcpy(res_APDU, file_get_data(ef) + offset, data_len - offset);
+            res_APDU_size = data_len - offset;
         }
     }
 

src/hsm/cmd_reset_retry.c

@@ -20,75 +20,88 @@
 #include "kek.h"
 
 int cmd_reset_retry() {
-    if (P2(apdu) != 0x81)
+    if (P2(apdu) != 0x81) {
         return SW_REFERENCE_NOT_FOUND();
+    }
     if (!file_sopin || !file_pin1) {
         return SW_FILE_NOT_FOUND();
     }
-    if (!file_sopin->data) {
+    if (!file_has_data(file_sopin)) {
         return SW_REFERENCE_NOT_FOUND();
     }
     uint16_t opts = get_device_options();
-    if (!(opts & HSM_OPT_RRC))
+    if (!(opts & HSM_OPT_RRC)) {
         return SW_COMMAND_NOT_ALLOWED();
+    }
     if (P1(apdu) == 0x0 || P1(apdu) == 0x2) {
-        int newpin_len = 0;
+        uint8_t newpin_len = 0;
         if (P1(apdu) == 0x0) {
-            if (apdu.nc <= 8)
+            uint8_t so_pin_len = file_read_uint8(file_sopin);
+            if ((uint16_t)apdu.nc <= so_pin_len + 1) {
                 return SW_WRONG_LENGTH();
-            uint16_t r = check_pin(file_sopin, apdu.data, 8);
-            if (r != 0x9000)
+            }
+            uint16_t r = check_pin(file_sopin, apdu.data, so_pin_len);
+            if (r != 0x9000) {
                 return r;
-            newpin_len = apdu.nc-8;
-            has_session_sopin = true;
-            hash_multi(apdu.data, 8, session_sopin);
+            }
+            newpin_len = (uint8_t)apdu.nc - so_pin_len;
         }
         else if (P1(apdu) == 0x2) {
-            if (!has_session_sopin)
+            if (!has_session_sopin) {
                 return SW_CONDITIONS_NOT_SATISFIED();
-            if (apdu.nc > 16)
+            }
+            if (apdu.nc > 16) {
                 return SW_WRONG_LENGTH();
-            newpin_len = apdu.nc;
+            }
+            newpin_len = (uint8_t)apdu.nc;
         }
         uint8_t dhash[33];
         dhash[0] = newpin_len;
-        double_hash_pin(apdu.data+(apdu.nc-newpin_len), newpin_len, dhash+1);
-        flash_write_data_to_file(file_pin1, dhash, sizeof(dhash));
-        if (pin_reset_retries(file_pin1, true) != CCID_OK)
+        double_hash_pin(apdu.data + (apdu.nc - newpin_len), newpin_len, dhash + 1);
+        file_put_data(file_pin1, dhash, sizeof(dhash));
+        if (pin_reset_retries(file_pin1, true) != CCID_OK) {
             return SW_MEMORY_FAILURE();
+        }
         uint8_t mkek[MKEK_SIZE];
         int r = load_mkek(mkek); //loads the MKEK with SO pin
-        if (r != CCID_OK)
+        if (r != CCID_OK) {
             return SW_EXEC_ERROR();
-        hash_multi(apdu.data+(apdu.nc-newpin_len), newpin_len, session_pin);
+        }
+        hash_multi(apdu.data + (apdu.nc - newpin_len), newpin_len, session_pin);
         has_session_pin = true;
         r = store_mkek(mkek);
         release_mkek(mkek);
-        if (r != CCID_OK)
+        if (r != CCID_OK) {
             return SW_EXEC_ERROR();
+        }
         low_flash_available();
         return SW_OK();
     }
     else if (P1(apdu) == 0x1 || P1(apdu) == 0x3) {
-        if (!(opts & HSM_OPT_RRC_RESET_ONLY))
+        if (!(opts & HSM_OPT_RRC_RESET_ONLY)) {
             return SW_COMMAND_NOT_ALLOWED();
+        }
         if (P1(apdu) == 0x1) {
-            if (apdu.nc != 8)
+            uint8_t so_pin_len = file_read_uint8(file_sopin);
+            if (apdu.nc != so_pin_len) {
                 return SW_WRONG_LENGTH();
-            uint16_t r = check_pin(file_sopin, apdu.data, 8);
-            if (r != 0x9000)
+            }
+            uint16_t r = check_pin(file_sopin, apdu.data, so_pin_len);
+            if (r != 0x9000) {
                 return r;
-            has_session_sopin = true;
-            hash_multi(apdu.data, 8, session_sopin);
+            }
         }
         else if (P1(apdu) == 0x3) {
-            if (!has_session_sopin)
+            if (!has_session_sopin) {
                 return SW_CONDITIONS_NOT_SATISFIED();
-            if (apdu.nc != 0)
+            }
+            if (apdu.nc != 0) {
                 return SW_WRONG_LENGTH();
+            }
         }
-        if (pin_reset_retries(file_pin1, true) != CCID_OK)
+        if (pin_reset_retries(file_pin1, true) != CCID_OK) {
             return SW_MEMORY_FAILURE();
+        }
         return SW_OK();
     }
     return SW_INCORRECT_P1P2();

src/hsm/cmd_select.c

@@ -19,12 +19,11 @@
 #include "version.h"
 
 void select_file(file_t *pe) {
-    if (!pe)
-    {
-        currentDF = (file_t *)MF;
+    if (!pe) {
+        currentDF = (file_t *) MF;
         currentEF = NULL;
     }
-    else if (pe->type & FILE_TYPE_INTERNAL_EF) {
+    else if (pe->type & (FILE_TYPE_INTERNAL_EF|FILE_TYPE_WORKING_EF)) {
         currentEF = pe;
         currentDF = &file_entries[pe->parent];
     }
@@ -48,29 +47,31 @@ int cmd_select() {
     //    return SW_INCORRECT_P1P2();
     //}
 
-    if (apdu.nc >= 2)
+    if (apdu.nc == 2) {
         fid = get_uint16_t(apdu.data, 0);
+    }
 
     //if ((fid & 0xff00) == (KEY_PREFIX << 8))
     //    fid = (PRKD_PREFIX << 8) | (fid & 0xff);
 
-    uint8_t pfx = fid >> 8;
-    if (pfx == PRKD_PREFIX ||
+    /*uint8_t pfx = fid >> 8;*/
+    /*if (pfx == PRKD_PREFIX ||
         pfx == CD_PREFIX ||
         pfx == CA_CERTIFICATE_PREFIX ||
         pfx == KEY_PREFIX ||
         pfx == EE_CERTIFICATE_PREFIX ||
         pfx == DCOD_PREFIX ||
         pfx == DATA_PREFIX ||
-        pfx == PROT_DATA_PREFIX) {
-        if (!(pe = search_dynamic_file(fid)) && !(pe = search_by_fid(fid, NULL, SPECIFY_EF)))
-            return SW_FILE_NOT_FOUND();
+        pfx == PROT_DATA_PREFIX) {*/
+    if (fid != 0x0 && !(pe = search_file(fid))) {
+        return SW_FILE_NOT_FOUND();
     }
+    /*}*/
     if (!pe) {
         if (p1 == 0x0) { //Select MF, DF or EF - File identifier or absent
             if (apdu.nc == 0) {
-            	pe = (file_t *)MF;
-            	//ac_fini();
+                pe = (file_t *) MF;
+                //ac_fini();
             }
             else if (apdu.nc == 2) {
                 if (!(pe = search_by_fid(fid, NULL, SPECIFY_ANY))) {
@@ -78,41 +79,42 @@ int cmd_select() {
                 }
             }
         }
-        else if (p1 == 0x01) { //Select child DF - DF identifier
+        else if (p1 == 0x01) {   //Select child DF - DF identifier
             if (!(pe = search_by_fid(fid, currentDF, SPECIFY_DF))) {
                 return SW_FILE_NOT_FOUND();
             }
         }
-        else if (p1 == 0x02) { //Select EF under the current DF - EF identifier
+        else if (p1 == 0x02) {   //Select EF under the current DF - EF identifier
             if (!(pe = search_by_fid(fid, currentDF, SPECIFY_EF))) {
                 return SW_FILE_NOT_FOUND();
             }
         }
-        else if (p1 == 0x03) { //Select parent DF of the current DF - Absent
-            if (apdu.nc != 0)
+        else if (p1 == 0x03) {   //Select parent DF of the current DF - Absent
+            if (apdu.nc != 0) {
                 return SW_FILE_NOT_FOUND();
+            }
         }
-        else if (p1 == 0x04) { //Select by DF name - e.g., [truncated] application identifier
-            if (!(pe = search_by_name(apdu.data, apdu.nc))) {
+        else if (p1 == 0x04) {   //Select by DF name - e.g., [truncated] application identifier
+            if (!(pe = search_by_name(apdu.data, (uint16_t)apdu.nc))) {
                 return SW_FILE_NOT_FOUND();
             }
             if (card_terminated) {
                 return set_res_sw(0x62, 0x85);
             }
         }
-        else if (p1 == 0x08) { //Select from the MF - Path without the MF identifier
-            if (!(pe = search_by_path(apdu.data, apdu.nc, MF))) {
+        else if (p1 == 0x08) {   //Select from the MF - Path without the MF identifier
+            if (!(pe = search_by_path(apdu.data, (uint8_t)apdu.nc, MF))) {
                 return SW_FILE_NOT_FOUND();
             }
         }
-        else if (p1 == 0x09) { //Select from the current DF - Path without the current DF identifier
-            if (!(pe = search_by_path(apdu.data, apdu.nc, currentDF))) {
+        else if (p1 == 0x09) {   //Select from the current DF - Path without the current DF identifier
+            if (!(pe = search_by_path(apdu.data, (uint8_t)apdu.nc, currentDF))) {
                 return SW_FILE_NOT_FOUND();
             }
         }
     }
     if ((p2 & 0xfc) == 0x00 || (p2 & 0xfc) == 0x04) {
-        process_fci(pe,0);
+        process_fci(pe, 0);
         if (pe == file_sc_hsm) {
             res_APDU[res_APDU_size++] = 0x85;
             res_APDU[res_APDU_size++] = 5;
@@ -122,11 +124,12 @@ int cmd_select() {
             res_APDU[res_APDU_size++] = 0xFF;
             res_APDU[res_APDU_size++] = HSM_VERSION_MAJOR;
             res_APDU[res_APDU_size++] = HSM_VERSION_MINOR;
-            res_APDU[1] = res_APDU_size-2;
+            res_APDU[1] = (uint8_t)res_APDU_size - 2;
         }
     }
-    else
+    else {
         return SW_INCORRECT_P1P2();
+    }
     select_file(pe);
-    return SW_OK ();
+    return SW_OK();
 }

src/hsm/cmd_session_pin.c

@@ -28,7 +28,8 @@ int cmd_session_pin() {
         res_APDU_size = sm_session_pin_len;
         apdu.ne = sm_session_pin_len;
     }
-    else
+    else {
         return SW_INCORRECT_P1P2();
+    }
     return SW_OK();
 }

src/hsm/cmd_signature.c

@@ -14,76 +14,86 @@
  * You should have received a copy of the GNU General Public License
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
-
+#include "sc_hsm.h"
 #include "crypto_utils.h"
 #include "sc_hsm.h"
 #include "asn1.h"
 #include "mbedtls/oid.h"
 #include "random.h"
+#include "mbedtls/eddsa.h"
+
+extern mbedtls_ecp_keypair hd_context;
+extern uint8_t hd_keytype;
 
 //-----
 /* From OpenSC */
 static const uint8_t hdr_md5[] = {
-	0x30, 0x20, 0x30, 0x0c, 0x06, 0x08, 0x2a, 0x86, 0x48, 0x86, 0xf7,
-	0x0d, 0x02, 0x05, 0x05, 0x00, 0x04, 0x10
+    0x30, 0x20, 0x30, 0x0c, 0x06, 0x08, 0x2a, 0x86, 0x48, 0x86, 0xf7,
+    0x0d, 0x02, 0x05, 0x05, 0x00, 0x04, 0x10
 };
 static const uint8_t hdr_sha1[] = {
-	0x30, 0x21, 0x30, 0x09, 0x06, 0x05, 0x2b, 0x0e, 0x03, 0x02, 0x1a,
-	0x05, 0x00, 0x04, 0x14
+    0x30, 0x21, 0x30, 0x09, 0x06, 0x05, 0x2b, 0x0e, 0x03, 0x02, 0x1a,
+    0x05, 0x00, 0x04, 0x14
 };
 static const uint8_t hdr_sha256[] = {
-	0x30, 0x31, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65,
-	0x03, 0x04, 0x02, 0x01, 0x05, 0x00, 0x04, 0x20
+    0x30, 0x31, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65,
+    0x03, 0x04, 0x02, 0x01, 0x05, 0x00, 0x04, 0x20
 };
 static const uint8_t hdr_sha384[] = {
-	0x30, 0x41, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65,
-	0x03, 0x04, 0x02, 0x02, 0x05, 0x00, 0x04, 0x30
+    0x30, 0x41, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65,
+    0x03, 0x04, 0x02, 0x02, 0x05, 0x00, 0x04, 0x30
 };
 static const uint8_t hdr_sha512[] = {
-	0x30, 0x51, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65,
-	0x03, 0x04, 0x02, 0x03, 0x05, 0x00, 0x04, 0x40
+    0x30, 0x51, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65,
+    0x03, 0x04, 0x02, 0x03, 0x05, 0x00, 0x04, 0x40
 };
 static const uint8_t hdr_sha224[] = {
-	0x30, 0x2d, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65,
-	0x03, 0x04, 0x02, 0x04, 0x05, 0x00, 0x04, 0x1c
+    0x30, 0x2d, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65,
+    0x03, 0x04, 0x02, 0x04, 0x05, 0x00, 0x04, 0x1c
 };
 static const uint8_t hdr_ripemd160[] = {
-	0x30, 0x21, 0x30, 0x09, 0x06, 0x05, 0x2b, 0x24, 0x03, 0x02, 0x01,
-	0x05, 0x00, 0x04, 0x14
+    0x30, 0x21, 0x30, 0x09, 0x06, 0x05, 0x2b, 0x24, 0x03, 0x02, 0x01,
+    0x05, 0x00, 0x04, 0x14
 };
 static const struct digest_info_prefix {
-	mbedtls_md_type_t algorithm;
-	const uint8_t *	hdr;
-	size_t hdr_len;
-	size_t hash_len;
+    mbedtls_md_type_t algorithm;
+    const uint8_t *hdr;
+    uint16_t hdr_len;
+    uint16_t hash_len;
 } digest_info_prefix[] = {
-      {	MBEDTLS_MD_MD5,	hdr_md5, sizeof(hdr_md5), 16 },
-      { MBEDTLS_MD_SHA1, hdr_sha1, sizeof(hdr_sha1), 20	},
-      { MBEDTLS_MD_SHA256, hdr_sha256, sizeof(hdr_sha256), 32 },
-      { MBEDTLS_MD_SHA384, hdr_sha384, sizeof(hdr_sha384), 48 },
-      { MBEDTLS_MD_SHA512, hdr_sha512, sizeof(hdr_sha512), 64 },
-      { MBEDTLS_MD_SHA224, hdr_sha224, sizeof(hdr_sha224), 28 },
-      { MBEDTLS_MD_RIPEMD160,hdr_ripemd160,	sizeof(hdr_ripemd160), 20 },
-      {	0, NULL, 0,	0 }
+    { MBEDTLS_MD_MD5, hdr_md5, sizeof(hdr_md5), 16 },
+    { MBEDTLS_MD_SHA1, hdr_sha1, sizeof(hdr_sha1), 20 },
+    { MBEDTLS_MD_SHA256, hdr_sha256, sizeof(hdr_sha256), 32 },
+    { MBEDTLS_MD_SHA384, hdr_sha384, sizeof(hdr_sha384), 48 },
+    { MBEDTLS_MD_SHA512, hdr_sha512, sizeof(hdr_sha512), 64 },
+    { MBEDTLS_MD_SHA224, hdr_sha224, sizeof(hdr_sha224), 28 },
+    { MBEDTLS_MD_RIPEMD160, hdr_ripemd160, sizeof(hdr_ripemd160), 20 },
+    { 0, NULL, 0, 0 }
 };
-int pkcs1_strip_digest_info_prefix(mbedtls_md_type_t *algorithm, const uint8_t *in_dat, size_t in_len, uint8_t *out_dat, size_t *out_len)
-{
-	for (int i = 0; digest_info_prefix[i].algorithm != 0; i++) {
-		size_t hdr_len = digest_info_prefix[i].hdr_len, hash_len = digest_info_prefix[i].hash_len;
-		const uint8_t *hdr = digest_info_prefix[i].hdr;
-		if (in_len == (hdr_len + hash_len) && !memcmp(in_dat, hdr, hdr_len)) {
-			if (algorithm)
-				*algorithm = digest_info_prefix[i].algorithm;
-			if (out_dat == NULL)
-				return CCID_OK;
-			if (*out_len < hash_len)
-				return CCID_WRONG_DATA;
-			memmove(out_dat, in_dat + hdr_len, hash_len);
-			*out_len = hash_len;
-			return CCID_OK;
-		}
-	}
-	return CCID_EXEC_ERROR;
+int pkcs1_strip_digest_info_prefix(mbedtls_md_type_t *algorithm,
+                                   const uint8_t *in_dat,
+                                   uint16_t in_len,
+                                   uint8_t *out_dat,
+                                   uint16_t *out_len) {
+    for (int i = 0; digest_info_prefix[i].algorithm != 0; i++) {
+        uint16_t hdr_len = digest_info_prefix[i].hdr_len, hash_len = digest_info_prefix[i].hash_len;
+        const uint8_t *hdr = digest_info_prefix[i].hdr;
+        if (in_len == (hdr_len + hash_len) && !memcmp(in_dat, hdr, hdr_len)) {
+            if (algorithm) {
+                *algorithm = digest_info_prefix[i].algorithm;
+            }
+            if (out_dat == NULL) {
+                return CCID_OK;
+            }
+            if (*out_len < hash_len) {
+                return CCID_WRONG_DATA;
+            }
+            memmove(out_dat, in_dat + hdr_len, hash_len);
+            *out_len = hash_len;
+            return CCID_OK;
+        }
+    }
+    return CCID_EXEC_ERROR;
 }
 //-----
 
@@ -92,22 +102,39 @@ int cmd_signature() {
     uint8_t p2 = P2(apdu);
     mbedtls_md_type_t md = MBEDTLS_MD_NONE;
     file_t *fkey;
-    if (!isUserAuthenticated)
+    if (!isUserAuthenticated) {
         return SW_SECURITY_STATUS_NOT_SATISFIED();
-    if (!(fkey = search_dynamic_file((KEY_PREFIX << 8) | key_id)) || !fkey->data || file_get_size(fkey) == 0)
+    }
+    if (!(fkey = search_file((KEY_PREFIX << 8) | key_id)) || !file_has_data(fkey)) {
         return SW_FILE_NOT_FOUND();
-    if (get_key_counter(fkey) == 0)
+    }
+    if (get_key_counter(fkey) == 0) {
         return SW_FILE_FULL();
-    if (key_has_purpose(fkey, p2) == false)
+    }
+    if (key_has_purpose(fkey, p2) == false) {
         return SW_CONDITIONS_NOT_SATISFIED();
-    int key_size = file_get_size(fkey);
-    if (p2 == ALGO_RSA_PKCS1_SHA1 || p2 == ALGO_RSA_PSS_SHA1 || p2 == ALGO_EC_SHA1)
+    }
+    uint16_t key_size = file_get_size(fkey);
+    if (p2 == ALGO_RSA_PKCS1_SHA1 || p2 == ALGO_RSA_PSS_SHA1 || p2 == ALGO_EC_SHA1) {
         md = MBEDTLS_MD_SHA1;
-    else if (p2 == ALGO_RSA_PKCS1_SHA256 || p2 == ALGO_RSA_PSS_SHA256 || p2 == ALGO_EC_SHA256)
+    }
+    else if (p2 == ALGO_RSA_PKCS1_SHA256 || p2 == ALGO_RSA_PSS_SHA256 || p2 == ALGO_EC_SHA256) {
         md = MBEDTLS_MD_SHA256;
-    else if (p2 == ALGO_EC_SHA224)
+    }
+    else if (p2 == ALGO_EC_SHA224 || p2 == ALGO_RSA_PKCS1_SHA224 || p2 == ALGO_RSA_PSS_SHA224) {
         md = MBEDTLS_MD_SHA224;
-    if (p2 == ALGO_RSA_PKCS1_SHA1 || p2 == ALGO_RSA_PSS_SHA1 || p2 == ALGO_EC_SHA1 || p2 == ALGO_RSA_PKCS1_SHA256 || p2 == ALGO_RSA_PSS_SHA256 || p2 == ALGO_EC_SHA256 || p2 == ALGO_EC_SHA224) {
+    }
+    else if (p2 == ALGO_EC_SHA384 || p2 == ALGO_RSA_PKCS1_SHA384 || p2 == ALGO_RSA_PSS_SHA384) {
+        md = MBEDTLS_MD_SHA384;
+    }
+    else if (p2 == ALGO_EC_SHA512 || p2 == ALGO_RSA_PKCS1_SHA512 || p2 == ALGO_RSA_PSS_SHA512) {
+        md = MBEDTLS_MD_SHA512;
+    }
+    if (p2 == ALGO_RSA_PKCS1_SHA1 || p2 == ALGO_RSA_PSS_SHA1 || p2 == ALGO_EC_SHA1 ||
+        p2 == ALGO_RSA_PKCS1_SHA256 || p2 == ALGO_RSA_PSS_SHA256 || p2 == ALGO_EC_SHA256 ||
+        p2 == ALGO_EC_SHA224 || p2 == ALGO_EC_SHA384 || p2 == ALGO_EC_SHA512 ||
+        p2 == ALGO_RSA_PKCS1_SHA224 || p2 == ALGO_RSA_PKCS1_SHA384 || p2 == ALGO_RSA_PKCS1_SHA512 ||
+        p2 == ALGO_RSA_PSS_SHA224 || p2 == ALGO_RSA_PSS_SHA384 || p2 == ALGO_RSA_PSS_SHA512) {
         generic_hash(md, apdu.data, apdu.nc, apdu.data);
         apdu.nc = mbedtls_md_get_size(mbedtls_md_info_from_type(md));
     }
@@ -115,70 +142,81 @@ int cmd_signature() {
         mbedtls_rsa_context ctx;
         mbedtls_rsa_init(&ctx);
 
-        int r;
-        r = load_private_key_rsa(&ctx, fkey);
+        int r = load_private_key_rsa(&ctx, fkey);
         if (r != CCID_OK) {
             mbedtls_rsa_free(&ctx);
-            if (r == CCID_VERIFICATION_FAILED)
+            if (r == CCID_VERIFICATION_FAILED) {
                 return SW_SECURE_MESSAGE_EXEC_ERROR();
+            }
             return SW_EXEC_ERROR();
         }
-        uint8_t *hash = apdu.data;
-        size_t hash_len = apdu.nc;
+        asn1_ctx_t hash = {.len = (uint16_t)apdu.nc, .data = apdu.data};
         if (p2 == ALGO_RSA_PKCS1) { //DigestInfo attached
-            size_t nc = apdu.nc;
-            if (pkcs1_strip_digest_info_prefix(&md, apdu.data, apdu.nc, apdu.data, &nc) != CCID_OK) //gets the MD algo id and strips it off
+            uint16_t nc = (uint16_t)apdu.nc;
+            if (pkcs1_strip_digest_info_prefix(&md, apdu.data, (uint16_t)apdu.nc, apdu.data,
+                                               &nc) != CCID_OK) {                                   //gets the MD algo id and strips it off
                 return SW_EXEC_ERROR();
+            }
             apdu.nc = nc;
         }
         else {
             //sc_asn1_print_tags(apdu.data, apdu.nc);
-            size_t tout = 0, oid_len = 0;
-            uint8_t *p = NULL, *oid = NULL;
-            if (asn1_find_tag(apdu.data, apdu.nc, 0x30, &tout, &p) && tout > 0 && p != NULL) {
-                size_t tout30 = 0;
-                uint8_t *c30 = NULL;
-                if (asn1_find_tag(p, tout, 0x30, &tout30, &c30) && tout30 > 0 && c30 != NULL) {
-                    asn1_find_tag(c30, tout30, 0x6, &oid_len, &oid);
+            asn1_ctx_t ctxi, ctxo = { 0 }, oid = { 0 };
+            asn1_ctx_init(apdu.data, (uint16_t)apdu.nc, &ctxi);
+            if (asn1_find_tag(&ctxi, 0x30, &ctxo) && asn1_len(&ctxo) > 0) {
+                asn1_ctx_t a30 = { 0 };
+                if (asn1_find_tag(&ctxo, 0x30, &a30) && asn1_len(&a30) > 0) {
+                    asn1_find_tag(&a30, 0x6, &oid);
                 }
-                asn1_find_tag(p, tout, 0x4, &hash_len, &hash);
+                asn1_find_tag(&ctxo, 0x4, &hash);
             }
-            if (oid && oid_len > 0) {
-                if (memcmp(oid, MBEDTLS_OID_DIGEST_ALG_SHA1, oid_len) == 0)
+            if (asn1_len(&oid)) {
+                if (memcmp(oid.data, MBEDTLS_OID_DIGEST_ALG_SHA1, oid.len) == 0) {
                     md = MBEDTLS_MD_SHA1;
-                else if (memcmp(oid, MBEDTLS_OID_DIGEST_ALG_SHA224, oid_len) == 0)
+                }
+                else if (memcmp(oid.data, MBEDTLS_OID_DIGEST_ALG_SHA224, oid.len) == 0) {
                     md = MBEDTLS_MD_SHA224;
-                else if (memcmp(oid, MBEDTLS_OID_DIGEST_ALG_SHA256, oid_len) == 0)
+                }
+                else if (memcmp(oid.data, MBEDTLS_OID_DIGEST_ALG_SHA256, oid.len) == 0) {
                     md = MBEDTLS_MD_SHA256;
-                else if (memcmp(oid, MBEDTLS_OID_DIGEST_ALG_SHA384, oid_len) == 0)
+                }
+                else if (memcmp(oid.data, MBEDTLS_OID_DIGEST_ALG_SHA384, oid.len) == 0) {
                     md = MBEDTLS_MD_SHA384;
-                else if (memcmp(oid, MBEDTLS_OID_DIGEST_ALG_SHA512, oid_len) == 0)
+                }
+                else if (memcmp(oid.data, MBEDTLS_OID_DIGEST_ALG_SHA512, oid.len) == 0) {
                     md = MBEDTLS_MD_SHA512;
+                }
             }
             if (p2 >= ALGO_RSA_PSS && p2 <= ALGO_RSA_PSS_SHA512) {
-                if (p2 == ALGO_RSA_PSS && !oid) {
-                    if (apdu.nc == 20) //default is sha1
+                if (p2 == ALGO_RSA_PSS && asn1_len(&oid) == 0) {
+                    if (apdu.nc == 20) { //default is sha1
                         md = MBEDTLS_MD_SHA1;
-                    else if (apdu.nc == 28)
+                    }
+                    else if (apdu.nc == 28) {
                         md = MBEDTLS_MD_SHA224;
-                    else if (apdu.nc == 32)
+                    }
+                    else if (apdu.nc == 32) {
                         md = MBEDTLS_MD_SHA256;
-                    else if (apdu.nc == 48)
+                    }
+                    else if (apdu.nc == 48) {
                         md = MBEDTLS_MD_SHA384;
-                    else if (apdu.nc == 64)
+                    }
+                    else if (apdu.nc == 64) {
                         md = MBEDTLS_MD_SHA512;
+                    }
                 }
                 mbedtls_rsa_set_padding(&ctx, MBEDTLS_RSA_PKCS_V21, md);
             }
         }
         if (md == MBEDTLS_MD_NONE) {
-            if (apdu.nc < key_size) //needs padding
-                memset(apdu.data+apdu.nc, 0, key_size-apdu.nc);
+            if (apdu.nc < key_size) { //needs padding
+                memset(apdu.data + apdu.nc, 0, key_size - apdu.nc);
+            }
             r = mbedtls_rsa_private(&ctx, random_gen, NULL, apdu.data, res_APDU);
         }
         else {
-            uint8_t *signature = (uint8_t *)calloc(key_size, sizeof(uint8_t));
-            r = mbedtls_rsa_pkcs1_sign(&ctx, random_gen, NULL, md, hash_len, hash, signature);
+            uint8_t *signature = (uint8_t *) calloc(key_size, sizeof(uint8_t));
+            r = mbedtls_rsa_pkcs1_sign(&ctx, random_gen, NULL, md, hash.len, hash.data, signature);
             memcpy(res_APDU, signature, key_size);
             free(signature);
         }
@@ -191,51 +229,90 @@ int cmd_signature() {
         mbedtls_rsa_free(&ctx);
     }
     else if (p2 >= ALGO_EC_RAW && p2 <= ALGO_EC_SHA512) {
-        mbedtls_ecdsa_context ctx;
-        mbedtls_ecdsa_init(&ctx);
+        mbedtls_ecp_keypair ctx;
+        mbedtls_ecp_keypair_init(&ctx);
         md = MBEDTLS_MD_SHA256;
         if (p2 == ALGO_EC_RAW) {
-            if (apdu.nc == 32)
+            if (apdu.nc == 32) {
                 md = MBEDTLS_MD_SHA256;
-            else if (apdu.nc == 20)
+            }
+            else if (apdu.nc == 20) {
                 md = MBEDTLS_MD_SHA1;
-            else if (apdu.nc == 28)
+            }
+            else if (apdu.nc == 28) {
                 md = MBEDTLS_MD_SHA224;
-            else if (apdu.nc == 48)
+            }
+            else if (apdu.nc == 48) {
                 md = MBEDTLS_MD_SHA384;
-            else if (apdu.nc == 64)
+            }
+            else if (apdu.nc == 64) {
                 md = MBEDTLS_MD_SHA512;
+            }
         }
-        if (p2 == ALGO_EC_SHA1)
+        if (p2 == ALGO_EC_SHA1) {
             md = MBEDTLS_MD_SHA1;
-        else if (p2 == ALGO_EC_SHA224)
+        }
+        else if (p2 == ALGO_EC_SHA224) {
             md = MBEDTLS_MD_SHA224;
-        else if (p2 == ALGO_EC_SHA256)
+        }
+        else if (p2 == ALGO_EC_SHA256) {
             md = MBEDTLS_MD_SHA256;
-        else if (p2 == ALGO_EC_SHA384)
+        }
+        else if (p2 == ALGO_EC_SHA384) {
             md = MBEDTLS_MD_SHA384;
-        else if (p2 == ALGO_EC_SHA512)
+        }
+        else if (p2 == ALGO_EC_SHA512) {
             md = MBEDTLS_MD_SHA512;
-        int r;
-        r = load_private_key_ecdsa(&ctx, fkey);
+        }
+        int r = load_private_key_ec(&ctx, fkey);
         if (r != CCID_OK) {
-            mbedtls_ecdsa_free(&ctx);
-            if (r == CCID_VERIFICATION_FAILED)
+            mbedtls_ecp_keypair_free(&ctx);
+            if (r == CCID_VERIFICATION_FAILED) {
                 return SW_SECURE_MESSAGE_EXEC_ERROR();
+            }
             return SW_EXEC_ERROR();
         }
         size_t olen = 0;
         uint8_t buf[MBEDTLS_ECDSA_MAX_LEN];
-        if (mbedtls_ecdsa_write_signature(&ctx, md, apdu.data, apdu.nc, buf, MBEDTLS_ECDSA_MAX_LEN, &olen, random_gen, NULL) != 0) {
-            mbedtls_ecdsa_free(&ctx);
+        if (ctx.grp.id == MBEDTLS_ECP_DP_ED25519 || ctx.grp.id == MBEDTLS_ECP_DP_ED448) {
+            r = mbedtls_eddsa_write_signature(&ctx, apdu.data, apdu.nc, buf, sizeof(buf), &olen, MBEDTLS_EDDSA_PURE, NULL, 0, random_gen, NULL);
+        }
+        else {
+            r = mbedtls_ecdsa_write_signature(&ctx, md, apdu.data, apdu.nc, buf, MBEDTLS_ECDSA_MAX_LEN,
+                                              &olen, random_gen, NULL);
+        }
+        if (r != 0) {
+            mbedtls_ecp_keypair_free(&ctx);
             return SW_EXEC_ERROR();
         }
         memcpy(res_APDU, buf, olen);
-        res_APDU_size = olen;
-        mbedtls_ecdsa_free(&ctx);
+        res_APDU_size = (uint16_t)olen;
+        mbedtls_ecp_keypair_free(&ctx);
     }
-    else
+    else if (p2 == ALGO_HD) {
+        size_t olen = 0;
+        uint8_t buf[MBEDTLS_ECDSA_MAX_LEN];
+        if (hd_context.grp.id == MBEDTLS_ECP_DP_NONE) {
+            return SW_CONDITIONS_NOT_SATISFIED();
+        }
+        if (hd_keytype != 0x1 && hd_keytype != 0x2) {
+            return SW_INCORRECT_PARAMS();
+        }
+        md = MBEDTLS_MD_SHA256;
+        if (mbedtls_ecdsa_write_signature(&hd_context, md, apdu.data, apdu.nc, buf,
+                                          MBEDTLS_ECDSA_MAX_LEN,
+                                          &olen, random_gen, NULL) != 0) {
+            mbedtls_ecdsa_free(&hd_context);
+            return SW_EXEC_ERROR();
+        }
+        memcpy(res_APDU, buf, olen);
+        res_APDU_size = (uint16_t)olen;
+        mbedtls_ecdsa_free(&hd_context);
+        hd_keytype = 0;
+    }
+    else {
         return SW_INCORRECT_P1P2();
+    }
     decrement_key_counter(fkey);
     return SW_OK();
 }

src/hsm/cmd_update_ef.c

@@ -27,26 +27,38 @@ int cmd_update_ef() {
     uint16_t offset = 0;
     uint16_t data_len = 0;
     file_t *ef = NULL;
-    if (!isUserAuthenticated)
+    if (!isUserAuthenticated) {
         return SW_SECURITY_STATUS_NOT_SATISFIED();
-    if (fid == 0x0)
+    }
+    if (fid == 0x0) {
         ef = currentEF;
-    else if (p1 != EE_CERTIFICATE_PREFIX && p1 != PRKD_PREFIX && p1 != CA_CERTIFICATE_PREFIX && p1 != CD_PREFIX && p1 != DATA_PREFIX && p1 != DCOD_PREFIX && p1 != PROT_DATA_PREFIX)
+    }
+    /*
+       // This should not happen
+       else if (p1 != EE_CERTIFICATE_PREFIX && p1 != PRKD_PREFIX && p1 != CA_CERTIFICATE_PREFIX &&
+             p1 != CD_PREFIX && p1 != DATA_PREFIX && p1 != DCOD_PREFIX &&
+             p1 != PROT_DATA_PREFIX) {
         return SW_INCORRECT_P1P2();
+       }
+     */
 
-    if (ef && !authenticate_action(ef, ACL_OP_UPDATE_ERASE))
+    if (ef && !authenticate_action(ef, ACL_OP_UPDATE_ERASE)) {
         return SW_SECURITY_STATUS_NOT_SATISFIED();
+    }
 
     uint16_t tag = 0x0;
     uint8_t *tag_data = NULL, *p = NULL;
-    size_t tag_len = 0;
-    while (walk_tlv(apdu.data, apdu.nc, &p, &tag, &tag_len, &tag_data)) {
+    uint16_t tag_len = 0;
+    asn1_ctx_t ctxi;
+    asn1_ctx_init(apdu.data, (uint16_t)apdu.nc, &ctxi);
+    while (walk_tlv(&ctxi, &p, &tag, &tag_len, &tag_data)) {
         if (tag == 0x54) { //ofset tag
-            for (int i = 1; i <= tag_len; i++)
-                offset |= (*tag_data++ << (8*(tag_len-i)));
+            for (size_t i = 1; i <= tag_len; i++) {
+                offset |= (*tag_data++ << (8 * (tag_len - i)));
+            }
         }
-        else if (tag == 0x53) { //data
-            data_len = tag_len;
+        else if (tag == 0x53) {   //data
+            data_len = (uint16_t)tag_len;
             data = tag_data;
         }
     }
@@ -57,28 +69,32 @@ int cmd_update_ef() {
         select_file(ef);
     }
     else {
-        if (fid == 0x0 && !ef)
+        if (fid == 0x0 && !ef) {
             return SW_FILE_NOT_FOUND();
-        else if (fid != 0x0 && !(ef = search_by_fid(fid, NULL, SPECIFY_EF)) && !(ef = search_dynamic_file(fid))) { //if does not exist, create it
+        }
+        else if (fid != 0x0 && !(ef = search_file(fid))) {                           //if does not exist, create it
             //return SW_FILE_NOT_FOUND();
             ef = file_new(fid);
         }
         if (offset == 0) {
-            int r = flash_write_data_to_file(ef, data, data_len);
-            if (r != CCID_OK)
+            int r = file_put_data(ef, data, data_len);
+            if (r != CCID_OK) {
                 return SW_MEMORY_FAILURE();
+            }
         }
         else {
-            if (!ef->data)
+            if (!file_has_data(ef)) {
                 return SW_DATA_INVALID();
+            }
 
-            uint8_t *data_merge = (uint8_t *)calloc(1, offset+data_len);
+            uint8_t *data_merge = (uint8_t *) calloc(1, offset + data_len);
             memcpy(data_merge, file_get_data(ef), offset);
-            memcpy(data_merge+offset, data, data_len);
-            int r = flash_write_data_to_file(ef, data_merge, offset+data_len);
+            memcpy(data_merge + offset, data, data_len);
+            int r = file_put_data(ef, data_merge, offset + data_len);
             free(data_merge);
-            if (r != CCID_OK)
+            if (r != CCID_OK) {
                 return SW_MEMORY_FAILURE();
+            }
         }
         low_flash_available();
     }

src/hsm/cmd_verify.c

@@ -21,35 +21,43 @@ int cmd_verify() {
     uint8_t p1 = P1(apdu);
     uint8_t p2 = P2(apdu);
 
-    if (p1 != 0x0 || (p2 & 0x60) != 0x0)
+    if (p1 != 0x0 || (p2 & 0x60) != 0x0) {
         return SW_WRONG_P1P2();
+    }
 
     if (p2 == 0x81) { //UserPin
         uint16_t opts = get_device_options();
-        if (opts & HSM_OPT_TRANSPORT_PIN)
+        if (opts & HSM_OPT_TRANSPORT_PIN) {
             return SW_DATA_INVALID();
-        if (has_session_pin && apdu.nc == 0)
-            return SW_OK();
-        if (*file_get_data(file_pin1) == 0 && pka_enabled() == false) //not initialized
-            return SW_REFERENCE_NOT_FOUND();
-        if (apdu.nc > 0) {
-            return check_pin(file_pin1, apdu.data, apdu.nc);
         }
-        if (file_read_uint8(file_get_data(file_retries_pin1)) == 0)
+        if (has_session_pin && apdu.nc == 0) {
+            return SW_OK();
+        }
+        if (*file_get_data(file_pin1) == 0 && pka_enabled() == false) { //not initialized
+            return SW_REFERENCE_NOT_FOUND();
+        }
+        if (apdu.nc > 0) {
+            return check_pin(file_pin1, apdu.data, (uint16_t)apdu.nc);
+        }
+        if (file_read_uint8(file_retries_pin1) == 0) {
             return SW_PIN_BLOCKED();
-        return set_res_sw(0x63, 0xc0 | file_read_uint8(file_get_data(file_retries_pin1)));
+        }
+        return set_res_sw(0x63, 0xc0 | file_read_uint8(file_retries_pin1));
     }
-    else if (p2 == 0x88) { //SOPin
-        if (file_read_uint8(file_get_data(file_sopin)) == 0) //not initialized
+    else if (p2 == 0x88) {   //SOPin
+        if (file_read_uint8(file_sopin) == 0) { //not initialized
             return SW_REFERENCE_NOT_FOUND();
-        if (apdu.nc > 0) {
-            return check_pin(file_sopin, apdu.data, apdu.nc);
         }
-        if (file_read_uint8(file_get_data(file_retries_sopin)) == 0)
+        if (apdu.nc > 0) {
+            return check_pin(file_sopin, apdu.data, (uint16_t)apdu.nc);
+        }
+        if (file_read_uint8(file_retries_sopin) == 0) {
             return SW_PIN_BLOCKED();
-        if (has_session_sopin)
+        }
+        if (has_session_sopin) {
             return SW_OK();
-        return set_res_sw(0x63, 0xc0 | file_read_uint8(file_get_data(file_retries_sopin)));
+        }
+        return set_res_sw(0x63, 0xc0 | file_read_uint8(file_retries_sopin));
     }
     else if (p2 == 0x85) {
         return SW_OK();

src/hsm/cvc.h

@@ -19,34 +19,87 @@
 #define _CVC_H_
 
 #include <stdlib.h>
+#if !defined(ENABLE_EMULATION) && !defined(ESP_PLATFORM)
 #include "pico/stdlib.h"
+#else
+#include <stdbool.h>
+#endif
 #include "mbedtls/ecp.h"
 
 typedef struct PUK {
     const uint8_t *puk;
-    size_t puk_len;
+    uint16_t puk_len;
     const uint8_t *car;
-    size_t car_len;
+    uint16_t car_len;
     const uint8_t *chr;
-    size_t chr_len;
+    uint16_t chr_len;
     const uint8_t *cvcert;
-    size_t cvcert_len;
+    uint16_t cvcert_len;
     bool copied;
 } PUK;
 
 #define MAX_PUK_STORE_ENTRIES 4
 
-extern size_t asn1_cvc_cert(void *rsa_ecdsa, uint8_t key_type, uint8_t *buf, size_t buf_len, const uint8_t *ext, size_t ext_len);
-extern size_t asn1_cvc_aut(void *rsa_ecdsa, uint8_t key_type, uint8_t *buf, size_t buf_len, const uint8_t *ext, size_t ext_len);
-extern size_t asn1_build_cert_description(const uint8_t *label, size_t label_len, const uint8_t *puk, size_t puk_len, uint16_t fid, uint8_t *buf, size_t buf_len);
-extern const uint8_t *cvc_get_field(const uint8_t *data, size_t len, size_t *olen, uint16_t tag);
-extern const uint8_t *cvc_get_car(const uint8_t *data, size_t len, size_t *olen);
-extern const uint8_t *cvc_get_chr(const uint8_t *data, size_t len, size_t *olen);
-extern const uint8_t *cvc_get_pub(const uint8_t *data, size_t len, size_t *olen);
-extern const uint8_t *cvc_get_ext(const uint8_t *data, size_t len, size_t *olen);
-extern int cvc_verify(const uint8_t *cert, size_t cert_len, const uint8_t *ca, size_t ca_len);
-extern mbedtls_ecp_group_id cvc_inherite_ec_group(const uint8_t *ca, size_t ca_len);
-extern int puk_verify(const uint8_t *sig, size_t sig_len, const uint8_t *hash, size_t hash_len, const uint8_t *ca, size_t ca_len);
-extern size_t asn1_build_prkd_ecc(const uint8_t *label, size_t label_len, const uint8_t *keyid, size_t keyid_len, size_t keysize, uint8_t *buf, size_t buf_len);
-
+extern uint16_t asn1_cvc_cert(void *rsa_ecdsa,
+                            uint8_t key_type,
+                            uint8_t *buf,
+                            uint16_t buf_len,
+                            const uint8_t *ext,
+                            uint16_t ext_len,
+                            bool full);
+extern uint16_t asn1_cvc_aut(void *rsa_ecdsa,
+                           uint8_t key_type,
+                           uint8_t *buf,
+                           uint16_t buf_len,
+                           const uint8_t *ext,
+                           uint16_t ext_len);
+extern uint16_t asn1_build_cert_description(const uint8_t *label,
+                                          uint16_t label_len,
+                                          const uint8_t *puk,
+                                          uint16_t puk_len,
+                                          uint16_t fid,
+                                          uint8_t *buf,
+                                          uint16_t buf_len);
+extern const uint8_t *cvc_get_field(const uint8_t *data, uint16_t len, uint16_t *olen, uint16_t tag);
+extern const uint8_t *cvc_get_car(const uint8_t *data, uint16_t len, uint16_t *olen);
+extern const uint8_t *cvc_get_chr(const uint8_t *data, uint16_t len, uint16_t *olen);
+extern const uint8_t *cvc_get_pub(const uint8_t *data, uint16_t len, uint16_t *olen);
+extern const uint8_t *cvc_get_ext(const uint8_t *data, uint16_t len, uint16_t *olen);
+extern int cvc_verify(const uint8_t *cert, uint16_t cert_len, const uint8_t *ca, uint16_t ca_len);
+extern mbedtls_ecp_group_id cvc_inherite_ec_group(const uint8_t *ca, uint16_t ca_len);
+extern int puk_verify(const uint8_t *sig,
+                      uint16_t sig_len,
+                      const uint8_t *hash,
+                      uint16_t hash_len,
+                      const uint8_t *ca,
+                      uint16_t ca_len);
+extern uint16_t asn1_build_prkd_ecc(const uint8_t *label,
+                                  uint16_t label_len,
+                                  const uint8_t *keyid,
+                                  uint16_t keyid_len,
+                                  uint16_t keysize,
+                                  uint8_t *buf,
+                                  uint16_t buf_len);
+extern uint16_t asn1_build_prkd_rsa(const uint8_t *label,
+                                  uint16_t label_len,
+                                  const uint8_t *keyid,
+                                  uint16_t keyid_len,
+                                  uint16_t keysize,
+                                  uint8_t *buf,
+                                  uint16_t buf_len);
+extern uint16_t asn1_build_prkd_aes(const uint8_t *label,
+                                  uint16_t label_len,
+                                  const uint8_t *keyid,
+                                  uint16_t keyid_len,
+                                  uint16_t keysize,
+                                  uint8_t *buf,
+                                  uint16_t buf_len);
+extern uint16_t asn1_build_prkd_generic(const uint8_t *label,
+                                  uint16_t label_len,
+                                  const uint8_t *keyid,
+                                  uint16_t keyid_len,
+                                  uint16_t keysize,
+                                  int key_tpe,
+                                  uint8_t *buf,
+                                  uint16_t buf_len);
 #endif

src/hsm/files.c

@@ -19,48 +19,98 @@
 
 extern const uint8_t sc_hsm_aid[];
 extern int parse_token_info(const file_t *f, int mode);
+extern int parse_ef_dir(const file_t *f, int mode);
 
 file_t file_entries[] = {
-    /*  0 */ { .fid = 0x3f00    , .parent = 0xff, .name = NULL, .type = FILE_TYPE_DF, .data = NULL, .ef_structure = 0, .acl = {0} }, // MF
-    /*  1 */ { .fid = 0x2f00    , .parent = 0, .name = NULL, .type = FILE_TYPE_WORKING_EF, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0} }, //EF.DIR
-    /*  2 */ { .fid = 0x2f01    , .parent = 0, .name = NULL, .type = FILE_TYPE_WORKING_EF, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0} }, //EF.ATR
-    /*  3 */ { .fid = EF_TERMCA , .parent = 0, .name = NULL, .type = FILE_TYPE_WORKING_EF | FILE_DATA_FLASH | FILE_PERSISTENT, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0} }, //EF.GDO
-    /*  4 */ { .fid = 0x2f03    , .parent = 5, .name = NULL, .type = FILE_TYPE_WORKING_EF | FILE_DATA_FUNC,.data = (uint8_t *)parse_token_info, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0} }, //EF.TokenInfo
-    /*  5 */ { .fid = 0x5015    , .parent = 0, .name = NULL, .type = FILE_TYPE_DF, .data = NULL, .ef_structure = 0, .acl = {0} }, //DF.PKCS15
-    /*  6 */ { .fid = 0x5031    , .parent = 5, .name = NULL, .type = FILE_TYPE_WORKING_EF, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0} }, //EF.ODF
-    /*  7 */ { .fid = 0x5032    , .parent = 5, .name = NULL, .type = FILE_TYPE_WORKING_EF, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0} }, //EF.TokenInfo
-    /*  8 */ { .fid = 0x5033    , .parent = 0, .name = NULL, .type = FILE_TYPE_WORKING_EF, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0} }, //EF.UnusedSpace
-    /*  9 */ { .fid = 0x1081    , .parent = 5, .name = NULL, .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0xff} }, //PIN (PIN1)
-    /* 10 */ { .fid = 0x1082    , .parent = 5, .name = NULL, .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0xff} }, //max retries PIN (PIN1)
-    /* 11 */ { .fid = 0x1083    , .parent = 5, .name = NULL, .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0xff} }, //retries PIN (PIN1)
-    /* 12 */ { .fid = 0x1088    , .parent = 5, .name = NULL, .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0xff} }, //PIN (SOPIN)
-    /* 13 */ { .fid = 0x1089    , .parent = 5, .name = NULL, .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0xff} }, //max retries PIN (SOPIN)
-    /* 14 */ { .fid = 0x108A    , .parent = 5, .name = NULL, .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0xff} }, //retries PIN (SOPIN)
-    /* 15 */ { .fid = EF_DEVOPS , .parent = 5, .name = NULL, .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0xff} }, //Device options
-    /* 16 */ { .fid = EF_PRKDFS , .parent = 5, .name = NULL, .type = FILE_TYPE_WORKING_EF, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0} }, //EF.PrKDFs
-    /* 17 */ { .fid = EF_PUKDFS , .parent = 5, .name = NULL, .type = FILE_TYPE_WORKING_EF, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0} }, //EF.PuKDFs
-    /* 18 */ { .fid = EF_CDFS   , .parent = 5, .name = NULL, .type = FILE_TYPE_WORKING_EF, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0} }, //EF.CDFs
-    /* 19 */ { .fid = EF_AODFS  , .parent = 5, .name = NULL, .type = FILE_TYPE_WORKING_EF, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0} }, //EF.AODFs
-    /* 20 */ { .fid = EF_DODFS  , .parent = 5, .name = NULL, .type = FILE_TYPE_WORKING_EF, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0} }, //EF.DODFs
-    /* 21 */ { .fid = EF_SKDFS  , .parent = 5, .name = NULL, .type = FILE_TYPE_WORKING_EF, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0} }, //EF.SKDFs
-    /* 22 */ { .fid = EF_KEY_DOMAIN, .parent = 5, .name = NULL, .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0xff} }, //Key domain options
-    /* 23 */ { .fid = EF_META   , .parent = 5, .name = NULL, .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0xff} }, //EF.CDFs
-    /* 24 */ { .fid = EF_PUKAUT, .parent = 5, .name = NULL, .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0xff} }, //Public Key Authentication
-    /* 25 */ { .fid = EF_KEY_DEV, .parent = 5, .name = NULL, .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH | FILE_PERSISTENT, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0xff} }, //Device Key
-    /* 26 */ { .fid = EF_PRKD_DEV, .parent = 5, .name = NULL, .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH | FILE_PERSISTENT, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0xff} }, //PrKD Device
-    /* 27 */ { .fid = EF_EE_DEV, .parent = 5, .name = NULL, .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH | FILE_PERSISTENT, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0xff} }, //End Entity Certificate Device
-    /* 28 */ { .fid = EF_MKEK , .parent = 5, .name = NULL, .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH | FILE_PERSISTENT, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0xff} }, //MKEK
-    /* 29 */ { .fid = EF_MKEK_SO , .parent = 5, .name = NULL, .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH | FILE_PERSISTENT, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0xff} }, //MKEK with SO-PIN
+    /*  0 */ { .fid = 0x3f00, .parent = 0xff, .name = NULL, .type = FILE_TYPE_DF, .data = NULL,
+               .ef_structure = 0, .acl = { 0 } },                                                                                    // MF
+    /*  1 */ { .fid = 0x2f00, .parent = 0, .name = NULL, .type = FILE_TYPE_WORKING_EF | FILE_DATA_FUNC, .data = (uint8_t *) parse_ef_dir,
+               .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0 } },                                                                                         //EF.DIR
+    /*  2 */ { .fid = 0x2f01, .parent = 0, .name = NULL, .type = FILE_TYPE_WORKING_EF, .data = NULL,
+               .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0 } },                                                                                         //EF.ATR
+    /*  3 */ { .fid = EF_TERMCA, .parent = 0, .name = NULL,
+               .type = FILE_TYPE_WORKING_EF | FILE_DATA_FLASH | FILE_PERSISTENT, .data = NULL,
+               .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0 } },                                                                                                                             //EF.GDO
+    /*  4 */ { .fid = 0x2f03, .parent = 5, .name = NULL,
+               .type = FILE_TYPE_WORKING_EF | FILE_DATA_FUNC, .data = (uint8_t *) parse_token_info,
+               .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0 } },                                                                                                                                //EF.TokenInfo
+    /*  5 */ { .fid = 0x5015, .parent = 0, .name = NULL, .type = FILE_TYPE_DF, .data = NULL,
+               .ef_structure = 0, .acl = { 0 } },                                                                                 //DF.PKCS15
+    /*  6 */ { .fid = 0x5031, .parent = 5, .name = NULL, .type = FILE_TYPE_WORKING_EF, .data = NULL,
+               .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0 } },                                                                                         //EF.ODF
+    /*  7 */ { .fid = 0x5032, .parent = 5, .name = NULL, .type = FILE_TYPE_WORKING_EF, .data = NULL,
+               .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0 } },                                                                                         //EF.TokenInfo
+    /*  8 */ { .fid = 0x5033, .parent = 0, .name = NULL, .type = FILE_TYPE_WORKING_EF, .data = NULL,
+               .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0 } },                                                                                         //EF.UnusedSpace
+    /*  9 */ { .fid = EF_PIN1, .parent = 5, .name = NULL,
+               .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH, .data = NULL,
+               .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0xff } },                                                                                                            //PIN (PIN1)
+    /* 10 */ { .fid = EF_PIN1_MAX_RETRIES, .parent = 5, .name = NULL,
+               .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH, .data = NULL,
+               .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0xff } },                                                                                                            //max retries PIN (PIN1)
+    /* 11 */ { .fid = EF_PIN1_RETRIES, .parent = 5, .name = NULL,
+               .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH, .data = NULL,
+               .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0xff } },                                                                                                            //retries PIN (PIN1)
+    /* 12 */ { .fid = EF_SOPIN, .parent = 5, .name = NULL,
+               .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH, .data = NULL,
+               .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0xff } },                                                                                                            //PIN (SOPIN)
+    /* 13 */ { .fid = EF_SOPIN_MAX_RETRIES, .parent = 5, .name = NULL,
+               .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH, .data = NULL,
+               .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0xff } },                                                                                                            //max retries PIN (SOPIN)
+    /* 14 */ { .fid = EF_SOPIN_RETRIES, .parent = 5, .name = NULL,
+               .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH, .data = NULL,
+               .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0xff } },                                                                                                            //retries PIN (SOPIN)
+    /* 15 */ { .fid = EF_DEVOPS, .parent = 5, .name = NULL,
+               .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH, .data = NULL,
+               .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0xff } },                                                                                                            //Device options
+    /* 16 */ { .fid = EF_PRKDFS, .parent = 5, .name = NULL, .type = FILE_TYPE_WORKING_EF,
+               .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0 } },                                                                           //EF.PrKDFs
+    /* 17 */ { .fid = EF_PUKDFS, .parent = 5, .name = NULL, .type = FILE_TYPE_WORKING_EF,
+               .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0 } },                                                                           //EF.PuKDFs
+    /* 18 */ { .fid = EF_CDFS, .parent = 5, .name = NULL, .type = FILE_TYPE_WORKING_EF,
+               .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0 } },                                                                           //EF.CDFs
+    /* 19 */ { .fid = EF_AODFS, .parent = 5, .name = NULL, .type = FILE_TYPE_WORKING_EF,
+               .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0 } },                                                                           //EF.AODFs
+    /* 20 */ { .fid = EF_DODFS, .parent = 5, .name = NULL, .type = FILE_TYPE_WORKING_EF,
+               .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0 } },                                                                           //EF.DODFs
+    /* 21 */ { .fid = EF_SKDFS, .parent = 5, .name = NULL, .type = FILE_TYPE_WORKING_EF,
+               .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0 } },                                                                           //EF.SKDFs
+    /* 22 */ { .fid = EF_KEY_DOMAIN, .parent = 5, .name = NULL,
+               .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH, .data = NULL,
+               .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0xff } },                                                                                                               //Key domain options
+    /* 23 */ { .fid = EF_META, .parent = 5, .name = NULL,
+               .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH, .data = NULL,
+               .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0xff } },                                                                                                            //EF.CDFs
+    /* 24 */ { .fid = EF_PUKAUT, .parent = 5, .name = NULL,
+               .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH, .data = NULL,
+               .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0xff } },                                                                                                           //Public Key Authentication
+    /* 25 */ { .fid = EF_KEY_DEV, .parent = 5, .name = NULL,
+               .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH | FILE_PERSISTENT, .data = NULL,
+               .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0xff } },                                                                                                                              //Device Key
+    /* 26 */ { .fid = EF_PRKD_DEV, .parent = 5, .name = NULL,
+               .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH | FILE_PERSISTENT, .data = NULL,
+               .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0xff } },                                                                                                                               //PrKD Device
+    /* 27 */ { .fid = EF_EE_DEV, .parent = 5, .name = NULL,
+               .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH | FILE_PERSISTENT, .data = NULL,
+               .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0xff } },                                                                                                                             //End Entity Certificate Device
+    /* 28 */ { .fid = EF_MKEK, .parent = 5, .name = NULL,
+               .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH | FILE_PERSISTENT, .data = NULL,
+               .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0xff } },                                                                                                                            //MKEK
+    /* 29 */ { .fid = EF_MKEK_SO, .parent = 5, .name = NULL,
+               .type = FILE_TYPE_INTERNAL_EF | FILE_DATA_FLASH | FILE_PERSISTENT, .data = NULL,
+               .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0xff } },                                                                                                                               //MKEK with SO-PIN
     ///* 30 */ { .fid = 0x0000, .parent = 0, .name = openpgpcard_aid, .type = FILE_TYPE_WORKING_EF, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0} },
-    /* 31 */ { .fid = 0x0000, .parent = 5, .name = sc_hsm_aid, .type = FILE_TYPE_WORKING_EF, .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = {0} },
-    /* 32 */ { .fid = 0x0000, .parent = 0xff, .name = NULL, .type = FILE_TYPE_UNKNOWN, .data = NULL, .ef_structure = 0, .acl = {0} } //end
+    /* 31 */ { .fid = 0x0000, .parent = 5, .name = sc_hsm_aid, .type = FILE_TYPE_WORKING_EF,
+               .data = NULL, .ef_structure = FILE_EF_TRANSPARENT, .acl = { 0 } },
+    /* 32 */ { .fid = 0x0000, .parent = 0xff, .name = NULL, .type = FILE_TYPE_NOT_KNOWN, .data = NULL,
+               .ef_structure = 0, .acl = { 0 } }                                                                                     //end
 };
 
 const file_t *MF = &file_entries[0];
-const file_t *file_last = &file_entries[sizeof(file_entries)/sizeof(file_t)-1];
-const file_t *file_openpgp = &file_entries[sizeof(file_entries)/sizeof(file_t)-3];
-const file_t *file_sc_hsm = &file_entries[sizeof(file_entries)/sizeof(file_t)-2];
+const file_t *file_last = &file_entries[sizeof(file_entries) / sizeof(file_t) - 1];
+const file_t *file_openpgp = &file_entries[sizeof(file_entries) / sizeof(file_t) - 3];
+const file_t *file_sc_hsm = &file_entries[sizeof(file_entries) / sizeof(file_t) - 2];
 file_t *file_pin1 = NULL;
 file_t *file_retries_pin1 = NULL;
 file_t *file_sopin = NULL;
-file_t *file_retries_sopin = NULL;
+file_t *file_retries_sopin = NULL;

src/hsm/files.h

@@ -24,11 +24,18 @@
 #define EF_DEVOPS       0x100E
 #define EF_MKEK         0x100A
 #define EF_MKEK_SO      0x100B
-#define EF_XKEK         0x1080
+#define EF_XKEK         0x1070
+#define EF_PIN1         0x1081
+#define EF_PIN1_MAX_RETRIES 0x1082
+#define EF_PIN1_RETRIES 0x1083
+#define EF_SOPIN        0x1088
+#define EF_SOPIN_MAX_RETRIES 0x1089
+#define EF_SOPIN_RETRIES 0x108A
 #define EF_DKEK         0x1090
 #define EF_KEY_DOMAIN   0x10A0
 #define EF_PUKAUT       0x10C0
-#define EF_PUK          0X10D0
+#define EF_PUK          0x10D0
+#define EF_MASTER_SEED  0x1110
 #define EF_PRKDFS       0x6040
 #define EF_PUKDFS       0x6041
 #define EF_CDFS         0x6042
@@ -40,11 +47,13 @@
 #define EF_PRKD_DEV     0xC400
 #define EF_EE_DEV       0xCE00
 
-#define EF_TERMCA       0x2f02
+#define EF_TERMCA       0x2F02
+#define EF_TOKENINFO    0x2F03
+#define EF_STATICTOKEN  0xCB00
 
 extern file_t *file_pin1;
 extern file_t *file_retries_pin1;
 extern file_t *file_sopin;
 extern file_t *file_retries_sopin;
 
-#endif
+#endif

src/hsm/kek.c

@@ -15,68 +15,102 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <string.h>
-#include "common.h"
+#include "sc_hsm.h"
 #include "stdlib.h"
+#if !defined(ENABLE_EMULATION) && !defined(ESP_PLATFORM)
 #include "pico/stdlib.h"
+#endif
 #include "kek.h"
 #include "crypto_utils.h"
 #include "random.h"
-#include "sc_hsm.h"
 #include "mbedtls/md.h"
 #include "mbedtls/cmac.h"
 #include "mbedtls/rsa.h"
 #include "mbedtls/ecdsa.h"
+#include "mbedtls/chachapoly.h"
 #include "files.h"
 
 extern bool has_session_pin, has_session_sopin;
 extern uint8_t session_pin[32], session_sopin[32];
+uint8_t mkek_mask[MKEK_KEY_SIZE];
+bool has_mkek_mask = false;
+uint8_t pending_save_dkek = 0xff;
 
 #define POLY 0xedb88320
 
-uint32_t crc32c(const uint8_t *buf, size_t len)
-{
-    uint32_t crc = ~0;
+uint32_t crc32c(const uint8_t *buf, size_t len) {
+    uint32_t crc = 0xffffffff;
     while (len--) {
         crc ^= *buf++;
-        for (int k = 0; k < 8; k++)
+        for (int k = 0; k < 8; k++) {
             crc = (crc >> 1) ^ (POLY & (0 - (crc & 1)));
+        }
     }
     return ~crc;
 }
 
 int load_mkek(uint8_t *mkek) {
-    if (has_session_pin == false && has_session_sopin == false)
+    if (has_session_pin == false && has_session_sopin == false) {
         return CCID_NO_LOGIN;
+    }
     const uint8_t *pin = NULL;
     if (pin == NULL && has_session_pin == true) {
-        file_t *tf = search_by_fid(EF_MKEK, NULL, SPECIFY_EF);
-        if (tf) {
+        file_t *tf = search_file(EF_MKEK);
+        if (file_has_data(tf)) {
             memcpy(mkek, file_get_data(tf), MKEK_SIZE);
             pin = session_pin;
         }
     }
     if (pin == NULL && has_session_sopin == true) {
-        file_t *tf = search_by_fid(EF_MKEK_SO, NULL, SPECIFY_EF);
-        if (tf) {
+        file_t *tf = search_file(EF_MKEK_SO);
+        if (file_has_data(tf)) {
             memcpy(mkek, file_get_data(tf), MKEK_SIZE);
             pin = session_sopin;
         }
     }
-    if (pin == NULL) //Should never happen
+    if (pin == NULL) { //Should never happen
         return CCID_EXEC_ERROR;
-    int ret = aes_decrypt_cfb_256(pin, MKEK_IV(mkek), MKEK_KEY(mkek), MKEK_KEY_SIZE+MKEK_KEY_CS_SIZE);
-    if (ret != 0)
+    }
+
+    if (has_mkek_mask) {
+        for (int i = 0; i < MKEK_KEY_SIZE; i++) {
+            MKEK_KEY(mkek)[i] ^= mkek_mask[i];
+        }
+    }
+    int ret =
+        aes_decrypt_cfb_256(pin, MKEK_IV(mkek), MKEK_KEY(mkek), MKEK_KEY_SIZE + MKEK_KEY_CS_SIZE);
+    if (ret != 0) {
         return CCID_EXEC_ERROR;
-    if (crc32c(MKEK_KEY(mkek), MKEK_KEY_SIZE) != *(uint32_t *)MKEK_CHECKSUM(mkek))
+    }
+    if (crc32c(MKEK_KEY(mkek), MKEK_KEY_SIZE) != *(uint32_t *) MKEK_CHECKSUM(mkek)) {
         return CCID_WRONG_DKEK;
+    }
     return CCID_OK;
 }
 
+mse_t mse = { .init = false };
+
+int mse_decrypt_ct(uint8_t *data, size_t len) {
+    mbedtls_chachapoly_context chatx;
+    mbedtls_chachapoly_init(&chatx);
+    mbedtls_chachapoly_setkey(&chatx, mse.key_enc + 12);
+    int ret = mbedtls_chachapoly_auth_decrypt(&chatx,
+                                              len - 16,
+                                              mse.key_enc,
+                                              mse.Qpt,
+                                              65,
+                                              data + len - 16,
+                                              data,
+                                              data);
+    mbedtls_chachapoly_free(&chatx);
+    return ret;
+}
+
 int load_dkek(uint8_t id, uint8_t *dkek) {
-    file_t *tf = search_dynamic_file(EF_DKEK+id);
-    if (!tf)
+    file_t *tf = search_file(EF_DKEK + id);
+    if (!file_has_data(tf)) {
         return CCID_ERR_FILE_NOT_FOUND;
+    }
     memcpy(dkek, file_get_data(tf), DKEK_KEY_SIZE);
     return mkek_decrypt(dkek, DKEK_KEY_SIZE);
 }
@@ -86,40 +120,48 @@ void release_mkek(uint8_t *mkek) {
 }
 
 int store_mkek(const uint8_t *mkek) {
-    if (has_session_pin == false && has_session_sopin == false)
+    if (has_session_pin == false && has_session_sopin == false) {
         return CCID_NO_LOGIN;
+    }
     uint8_t tmp_mkek[MKEK_SIZE];
     if (mkek == NULL) {
-        const uint8_t *rd = random_bytes_get(MKEK_IV_SIZE+MKEK_KEY_SIZE);
-        memcpy(tmp_mkek, rd, MKEK_IV_SIZE+MKEK_KEY_SIZE);
+        const uint8_t *rd = random_bytes_get(MKEK_IV_SIZE + MKEK_KEY_SIZE);
+        memcpy(tmp_mkek, rd, MKEK_IV_SIZE + MKEK_KEY_SIZE);
     }
-    else
+    else {
         memcpy(tmp_mkek, mkek, MKEK_SIZE);
-    *(uint32_t*)MKEK_CHECKSUM(tmp_mkek) = crc32c(MKEK_KEY(tmp_mkek), MKEK_KEY_SIZE);
+    }
+    *(uint32_t *) MKEK_CHECKSUM(tmp_mkek) = crc32c(MKEK_KEY(tmp_mkek), MKEK_KEY_SIZE);
     if (has_session_pin) {
         uint8_t tmp_mkek_pin[MKEK_SIZE];
         memcpy(tmp_mkek_pin, tmp_mkek, MKEK_SIZE);
-        file_t *tf = search_by_fid(EF_MKEK, NULL, SPECIFY_EF);
+        file_t *tf = search_file(EF_MKEK);
         if (!tf) {
             release_mkek(tmp_mkek);
             release_mkek(tmp_mkek_pin);
             return CCID_ERR_FILE_NOT_FOUND;
         }
-        aes_encrypt_cfb_256(session_pin, MKEK_IV(tmp_mkek_pin), MKEK_KEY(tmp_mkek_pin), MKEK_KEY_SIZE+MKEK_KEY_CS_SIZE);
-        flash_write_data_to_file(tf, tmp_mkek_pin, MKEK_SIZE);
+        aes_encrypt_cfb_256(session_pin,
+                            MKEK_IV(tmp_mkek_pin),
+                            MKEK_KEY(tmp_mkek_pin),
+                            MKEK_KEY_SIZE + MKEK_KEY_CS_SIZE);
+        file_put_data(tf, tmp_mkek_pin, MKEK_SIZE);
         release_mkek(tmp_mkek_pin);
     }
     if (has_session_sopin) {
         uint8_t tmp_mkek_sopin[MKEK_SIZE];
         memcpy(tmp_mkek_sopin, tmp_mkek, MKEK_SIZE);
-        file_t *tf = search_by_fid(EF_MKEK_SO, NULL, SPECIFY_EF);
+        file_t *tf = search_file(EF_MKEK_SO);
         if (!tf) {
             release_mkek(tmp_mkek);
             release_mkek(tmp_mkek_sopin);
             return CCID_ERR_FILE_NOT_FOUND;
         }
-        aes_encrypt_cfb_256(session_sopin, MKEK_IV(tmp_mkek_sopin), MKEK_KEY(tmp_mkek_sopin), MKEK_KEY_SIZE + MKEK_KEY_CS_SIZE);
-        flash_write_data_to_file(tf, tmp_mkek_sopin, MKEK_SIZE);
+        aes_encrypt_cfb_256(session_sopin,
+                            MKEK_IV(tmp_mkek_sopin),
+                            MKEK_KEY(tmp_mkek_sopin),
+                            MKEK_KEY_SIZE + MKEK_KEY_CS_SIZE);
+        file_put_data(tf, tmp_mkek_sopin, MKEK_SIZE);
         release_mkek(tmp_mkek_sopin);
     }
     low_flash_available();
@@ -128,13 +170,15 @@ int store_mkek(const uint8_t *mkek) {
 }
 
 int store_dkek_key(uint8_t id, uint8_t *dkek) {
-    file_t *tf = search_dynamic_file(EF_DKEK+id);
-    if (!tf)
+    file_t *tf = search_file(EF_DKEK + id);
+    if (!tf) {
         return CCID_ERR_FILE_NOT_FOUND;
+    }
     int r = mkek_encrypt(dkek, DKEK_KEY_SIZE);
-    if (r != CCID_OK)
+    if (r != CCID_OK) {
         return r;
-    flash_write_data_to_file(tf, dkek, DKEK_KEY_SIZE);
+    }
+    file_put_data(tf, dkek, DKEK_KEY_SIZE);
     low_flash_available();
     return CCID_OK;
 }
@@ -142,27 +186,32 @@ int store_dkek_key(uint8_t id, uint8_t *dkek) {
 int save_dkek_key(uint8_t id, const uint8_t *key) {
     uint8_t dkek[DKEK_KEY_SIZE];
     if (!key) {
-        file_t *tf = search_dynamic_file(EF_DKEK+id);
-        if (!tf)
+        file_t *tf = search_file(EF_DKEK + id);
+        if (!tf) {
             return CCID_ERR_FILE_NOT_FOUND;
+        }
         memcpy(dkek, file_get_data(tf), DKEK_KEY_SIZE);
     }
-    else
+    else {
         memcpy(dkek, key, DKEK_KEY_SIZE);
+    }
     return store_dkek_key(id, dkek);
 }
 
 int import_dkek_share(uint8_t id, const uint8_t *share) {
     uint8_t tmp_dkek[DKEK_KEY_SIZE];
-    file_t *tf = search_dynamic_file(EF_DKEK+id);
-    if (!tf)
+    file_t *tf = search_file(EF_DKEK + id);
+    if (!tf) {
         return CCID_ERR_FILE_NOT_FOUND;
+    }
     memset(tmp_dkek, 0, sizeof(tmp_dkek));
-    if (file_get_size(tf) == DKEK_KEY_SIZE)
-        memcpy(tmp_dkek, file_get_data(tf),DKEK_KEY_SIZE);
-    for (int i = 0; i < DKEK_KEY_SIZE; i++)
+    if (file_get_size(tf) == DKEK_KEY_SIZE) {
+        memcpy(tmp_dkek, file_get_data(tf), DKEK_KEY_SIZE);
+    }
+    for (int i = 0; i < DKEK_KEY_SIZE; i++) {
         tmp_dkek[i] ^= share[i];
-    flash_write_data_to_file(tf, tmp_dkek, DKEK_KEY_SIZE);
+    }
+    file_put_data(tf, tmp_dkek, DKEK_KEY_SIZE);
     low_flash_available();
     return CCID_OK;
 }
@@ -172,8 +221,9 @@ int dkek_kcv(uint8_t id, uint8_t *kcv) { //kcv 8 bytes
     memset(kcv, 0, 8);
     memset(hsh, 0, sizeof(hsh));
     int r = load_dkek(id, dkek);
-    if (r != CCID_OK)
+    if (r != CCID_OK) {
         return r;
+    }
     hash256(dkek, DKEK_KEY_SIZE, hsh);
     mbedtls_platform_zeroize(dkek, sizeof(dkek));
     memcpy(kcv, hsh, 8);
@@ -181,295 +231,382 @@ int dkek_kcv(uint8_t id, uint8_t *kcv) { //kcv 8 bytes
 }
 
 int dkek_kenc(uint8_t id, uint8_t *kenc) { //kenc 32 bytes
-    uint8_t dkek[DKEK_KEY_SIZE+4];
+    uint8_t dkek[DKEK_KEY_SIZE + 4];
     memset(kenc, 0, 32);
     int r = load_dkek(id, dkek);
-    if (r != CCID_OK)
+    if (r != CCID_OK) {
         return r;
-    memcpy(dkek+DKEK_KEY_SIZE, "\x0\x0\x0\x1", 4);
+    }
+    memcpy(dkek + DKEK_KEY_SIZE, "\x0\x0\x0\x1", 4);
     hash256(dkek, sizeof(dkek), kenc);
     mbedtls_platform_zeroize(dkek, sizeof(dkek));
     return CCID_OK;
 }
 
 int dkek_kmac(uint8_t id, uint8_t *kmac) { //kmac 32 bytes
-    uint8_t dkek[DKEK_KEY_SIZE+4];
+    uint8_t dkek[DKEK_KEY_SIZE + 4];
     memset(kmac, 0, 32);
     int r = load_dkek(id, dkek);
-    if (r != CCID_OK)
+    if (r != CCID_OK) {
         return r;
-    memcpy(dkek+DKEK_KEY_SIZE, "\x0\x0\x0\x2", 4);
-    hash256(dkek, DKEK_KEY_SIZE+4, kmac);
+    }
+    memcpy(dkek + DKEK_KEY_SIZE, "\x0\x0\x0\x2", 4);
+    hash256(dkek, DKEK_KEY_SIZE + 4, kmac);
     mbedtls_platform_zeroize(dkek, sizeof(dkek));
     return CCID_OK;
 }
 
-int mkek_encrypt(uint8_t *data, size_t len) {
+int mkek_encrypt(uint8_t *data, uint16_t len) {
     int r;
-    uint8_t mkek[MKEK_SIZE+4];
-    if ((r = load_mkek(mkek)) != CCID_OK)
+    uint8_t mkek[MKEK_SIZE + 4];
+    if ((r = load_mkek(mkek)) != CCID_OK) {
         return r;
+    }
     r = aes_encrypt_cfb_256(MKEK_KEY(mkek), MKEK_IV(mkek), data, len);
     release_mkek(mkek);
     return r;
 }
 
-int mkek_decrypt(uint8_t *data, size_t len) {
+int mkek_decrypt(uint8_t *data, uint16_t len) {
     int r;
-    uint8_t mkek[MKEK_SIZE+4];
-    if ((r = load_mkek(mkek)) != CCID_OK)
+    uint8_t mkek[MKEK_SIZE + 4];
+    if ((r = load_mkek(mkek)) != CCID_OK) {
         return r;
+    }
     r = aes_decrypt_cfb_256(MKEK_KEY(mkek), MKEK_IV(mkek), data, len);
     release_mkek(mkek);
     return r;
 }
 
-int dkek_encode_key(uint8_t id, void *key_ctx, int key_type, uint8_t *out, size_t *out_len, const uint8_t *allowed, size_t allowed_len) {
-    if (!(key_type & HSM_KEY_RSA) && !(key_type & HSM_KEY_EC) && !(key_type & HSM_KEY_AES))
+int dkek_encode_key(uint8_t id,
+                    void *key_ctx,
+                    int key_type,
+                    uint8_t *out,
+                    uint16_t *out_len,
+                    const uint8_t *allowed,
+                    uint16_t allowed_len) {
+    if (!(key_type & PICO_KEYS_KEY_RSA) && !(key_type & PICO_KEYS_KEY_EC) && !(key_type & PICO_KEYS_KEY_AES)) {
         return CCID_WRONG_DATA;
+    }
 
-    uint8_t kb[8+2*4+2*4096/8+3+13]; //worst case: RSA-4096  (plus, 13 bytes padding)
+    uint8_t kb[8 + 2 * 4 + 2 * 4096 / 8 + 3 + 13]; //worst case: RSA-4096  (plus, 13 bytes padding)
     memset(kb, 0, sizeof(kb));
-    int kb_len = 0, r = 0;
+    uint16_t kb_len = 0;
+    int r = 0;
     uint8_t *algo = NULL;
     uint8_t algo_len = 0;
     uint8_t kenc[32];
     memset(kenc, 0, sizeof(kenc));
     r = dkek_kenc(id, kenc);
-    if (r != CCID_OK)
+    if (r != CCID_OK) {
         return r;
+    }
 
     uint8_t kcv[8];
     memset(kcv, 0, sizeof(kcv));
     r = dkek_kcv(id, kcv);
-    if (r != CCID_OK)
+    if (r != CCID_OK) {
         return r;
+    }
 
     uint8_t kmac[32];
     memset(kmac, 0, sizeof(kmac));
     r = dkek_kmac(id, kmac);
-    if (r != CCID_OK)
+    if (r != CCID_OK) {
         return r;
+    }
 
-    if (key_type & HSM_KEY_AES) {
-        if (key_type & HSM_KEY_AES_128)
+    if (key_type & PICO_KEYS_KEY_AES) {
+        if (key_type & PICO_KEYS_KEY_AES_128) {
             kb_len = 16;
-        else if (key_type & HSM_KEY_AES_192)
+        }
+        else if (key_type & PICO_KEYS_KEY_AES_192) {
             kb_len = 24;
-        else if (key_type & HSM_KEY_AES_256)
+        }
+        else if (key_type & PICO_KEYS_KEY_AES_256) {
             kb_len = 32;
+        }
+        else if (key_type & PICO_KEYS_KEY_AES_512) {
+            kb_len = 64;
+        }
 
-        if (kb_len != 16 && kb_len != 24 && kb_len != 32)
+        if (kb_len != 16 && kb_len != 24 && kb_len != 32 && kb_len != 64) {
             return CCID_WRONG_DATA;
-        if (*out_len < 8+1+10+6+4+(2+32+14)+16)
+        }
+        if (*out_len < 8 + 1 + 10 + 6 + (2 + 64 + 14) + 16) { // 14 bytes padding
             return CCID_WRONG_LENGTH;
+        }
 
-        put_uint16_t(kb_len, kb+8);
-        memcpy(kb+10, key_ctx, kb_len);
+        put_uint16_t(kb_len, kb + 8);
+        memcpy(kb + 10, key_ctx, kb_len);
         kb_len += 2;
 
-        algo = (uint8_t *)"\x00\x08\x60\x86\x48\x01\x65\x03\x04\x01"; //2.16.840.1.101.3.4.1 (2+8)
+        algo = (uint8_t *) "\x00\x08\x60\x86\x48\x01\x65\x03\x04\x01"; //2.16.840.1.101.3.4.1 (2+8)
         algo_len = 10;
     }
-    else if (key_type & HSM_KEY_RSA) {
-        if (*out_len < 8+1+12+6+(8+2*4+2*4096/8+3+13)+16) //13 bytes pading
+    else if (key_type & PICO_KEYS_KEY_RSA) {
+        if (*out_len < 8 + 1 + 12 + 6 + (8 + 2 * 4 + 2 * 4096 / 8 + 3 + 13) + 16) { //13 bytes pading
             return CCID_WRONG_LENGTH;
-        mbedtls_rsa_context *rsa = (mbedtls_rsa_context *)key_ctx;
+        }
+        mbedtls_rsa_context *rsa = (mbedtls_rsa_context *) key_ctx;
         kb_len = 0;
-        put_uint16_t(mbedtls_rsa_get_len(rsa)*8, kb+8+kb_len); kb_len += 2;
+        put_uint16_t((uint16_t)mbedtls_rsa_get_len(rsa) * 8, kb + 8 + kb_len); kb_len += 2;
 
-        put_uint16_t(mbedtls_mpi_size(&rsa->D), kb+8+kb_len); kb_len += 2;
-        mbedtls_mpi_write_binary(&rsa->D, kb+8+kb_len, mbedtls_mpi_size(&rsa->D)); kb_len += mbedtls_mpi_size(&rsa->D);
-        put_uint16_t(mbedtls_mpi_size(&rsa->N), kb+8+kb_len); kb_len += 2;
-        mbedtls_mpi_write_binary(&rsa->N, kb+8+kb_len, mbedtls_mpi_size(&rsa->N)); kb_len += mbedtls_mpi_size(&rsa->N);
-        put_uint16_t(mbedtls_mpi_size(&rsa->E), kb+8+kb_len); kb_len += 2;
-        mbedtls_mpi_write_binary(&rsa->E, kb+8+kb_len, mbedtls_mpi_size(&rsa->E)); kb_len += mbedtls_mpi_size(&rsa->E);
+        put_uint16_t((uint16_t)mbedtls_mpi_size(&rsa->D), kb + 8 + kb_len); kb_len += 2;
+        mbedtls_mpi_write_binary(&rsa->D, kb + 8 + kb_len, mbedtls_mpi_size(&rsa->D));
+        kb_len += (uint16_t)mbedtls_mpi_size(&rsa->D);
+        put_uint16_t((uint16_t)mbedtls_mpi_size(&rsa->N), kb + 8 + kb_len); kb_len += 2;
+        mbedtls_mpi_write_binary(&rsa->N, kb + 8 + kb_len, mbedtls_mpi_size(&rsa->N));
+        kb_len += (uint16_t)mbedtls_mpi_size(&rsa->N);
+        put_uint16_t((uint16_t)mbedtls_mpi_size(&rsa->E), kb + 8 + kb_len); kb_len += 2;
+        mbedtls_mpi_write_binary(&rsa->E, kb + 8 + kb_len, mbedtls_mpi_size(&rsa->E));
+        kb_len += (uint16_t)mbedtls_mpi_size(&rsa->E);
 
-        algo = (uint8_t *)"\x00\x0A\x04\x00\x7F\x00\x07\x02\x02\x02\x01\x02";
+        algo = (uint8_t *) "\x00\x0A\x04\x00\x7F\x00\x07\x02\x02\x02\x01\x02";
         algo_len = 12;
     }
-    else if (key_type & HSM_KEY_EC) {
-        if (*out_len < 8+1+12+6+(8+2*8+9*66+2+4)+16) //4 bytes pading
+    else if (key_type & PICO_KEYS_KEY_EC) {
+        if (*out_len < 8 + 1 + 12 + 6 + (8 + 2 * 8 + 9 * 66 + 2 + 4) + 16) { //4 bytes pading
             return CCID_WRONG_LENGTH;
-        mbedtls_ecdsa_context *ecdsa = (mbedtls_ecdsa_context *)key_ctx;
+        }
+        mbedtls_ecdsa_context *ecdsa = (mbedtls_ecdsa_context *) key_ctx;
         kb_len = 0;
-        put_uint16_t(mbedtls_mpi_size(&ecdsa->grp.P)*8, kb+8+kb_len); kb_len += 2;
-        put_uint16_t(mbedtls_mpi_size(&ecdsa->grp.A), kb+8+kb_len); kb_len += 2;
-        mbedtls_mpi_write_binary(&ecdsa->grp.A, kb+8+kb_len, mbedtls_mpi_size(&ecdsa->grp.A)); kb_len += mbedtls_mpi_size(&ecdsa->grp.A);
-        put_uint16_t(mbedtls_mpi_size(&ecdsa->grp.B), kb+8+kb_len); kb_len += 2;
-        mbedtls_mpi_write_binary(&ecdsa->grp.B, kb+8+kb_len, mbedtls_mpi_size(&ecdsa->grp.B)); kb_len += mbedtls_mpi_size(&ecdsa->grp.B);
-        put_uint16_t(mbedtls_mpi_size(&ecdsa->grp.P), kb+8+kb_len); kb_len += 2;
-        mbedtls_mpi_write_binary(&ecdsa->grp.P, kb+8+kb_len, mbedtls_mpi_size(&ecdsa->grp.P)); kb_len += mbedtls_mpi_size(&ecdsa->grp.P);
-        put_uint16_t(mbedtls_mpi_size(&ecdsa->grp.N), kb+8+kb_len); kb_len += 2;
-        mbedtls_mpi_write_binary(&ecdsa->grp.N, kb+8+kb_len, mbedtls_mpi_size(&ecdsa->grp.N)); kb_len += mbedtls_mpi_size(&ecdsa->grp.N);
-        put_uint16_t(1+mbedtls_mpi_size(&ecdsa->grp.G.X)+mbedtls_mpi_size(&ecdsa->grp.G.Y), kb+8+kb_len); kb_len += 2;
-        kb[8+kb_len++] = 0x4;
-        mbedtls_mpi_write_binary(&ecdsa->grp.G.X, kb+8+kb_len, mbedtls_mpi_size(&ecdsa->grp.G.X)); kb_len += mbedtls_mpi_size(&ecdsa->grp.G.X);
-        mbedtls_mpi_write_binary(&ecdsa->grp.G.Y, kb+8+kb_len, mbedtls_mpi_size(&ecdsa->grp.G.Y)); kb_len += mbedtls_mpi_size(&ecdsa->grp.G.Y);
-        put_uint16_t(mbedtls_mpi_size(&ecdsa->d), kb+8+kb_len); kb_len += 2;
-        mbedtls_mpi_write_binary(&ecdsa->d, kb+8+kb_len, mbedtls_mpi_size(&ecdsa->d)); kb_len += mbedtls_mpi_size(&ecdsa->d);
-        put_uint16_t(1+mbedtls_mpi_size(&ecdsa->Q.X)+mbedtls_mpi_size(&ecdsa->Q.Y), kb+8+kb_len); kb_len += 2;
-        kb[8+kb_len++] = 0x4;
-        mbedtls_mpi_write_binary(&ecdsa->Q.X, kb+8+kb_len, mbedtls_mpi_size(&ecdsa->Q.X)); kb_len += mbedtls_mpi_size(&ecdsa->Q.X);
-        mbedtls_mpi_write_binary(&ecdsa->Q.Y, kb+8+kb_len, mbedtls_mpi_size(&ecdsa->Q.Y)); kb_len += mbedtls_mpi_size(&ecdsa->Q.Y);
+        put_uint16_t((uint16_t)mbedtls_mpi_size(&ecdsa->grp.P) * 8, kb + 8 + kb_len); kb_len += 2;
+        put_uint16_t((uint16_t)mbedtls_mpi_size(&ecdsa->grp.A), kb + 8 + kb_len); kb_len += 2;
+        mbedtls_mpi_write_binary(&ecdsa->grp.A, kb + 8 + kb_len, mbedtls_mpi_size(&ecdsa->grp.A));
+        kb_len += (uint16_t)mbedtls_mpi_size(&ecdsa->grp.A);
+        put_uint16_t((uint16_t)mbedtls_mpi_size(&ecdsa->grp.B), kb + 8 + kb_len); kb_len += 2;
+        mbedtls_mpi_write_binary(&ecdsa->grp.B, kb + 8 + kb_len, mbedtls_mpi_size(&ecdsa->grp.B));
+        kb_len += (uint16_t)mbedtls_mpi_size(&ecdsa->grp.B);
+        put_uint16_t((uint16_t)mbedtls_mpi_size(&ecdsa->grp.P), kb + 8 + kb_len); kb_len += 2;
+        mbedtls_mpi_write_binary(&ecdsa->grp.P, kb + 8 + kb_len, mbedtls_mpi_size(&ecdsa->grp.P));
+        kb_len += (uint16_t)mbedtls_mpi_size(&ecdsa->grp.P);
+        put_uint16_t((uint16_t)mbedtls_mpi_size(&ecdsa->grp.N), kb + 8 + kb_len); kb_len += 2;
+        mbedtls_mpi_write_binary(&ecdsa->grp.N, kb + 8 + kb_len, mbedtls_mpi_size(&ecdsa->grp.N));
+        kb_len += (uint16_t)mbedtls_mpi_size(&ecdsa->grp.N);
 
-        algo = (uint8_t *)"\x00\x0A\x04\x00\x7F\x00\x07\x02\x02\x02\x02\x03";
+        size_t olen = 0;
+        mbedtls_ecp_point_write_binary(&ecdsa->grp,
+                                       &ecdsa->grp.G,
+                                       MBEDTLS_ECP_PF_UNCOMPRESSED,
+                                       &olen,
+                                       kb + 8 + kb_len + 2,
+                                       sizeof(kb) - 8 - kb_len - 2);
+        put_uint16_t((uint16_t)olen, kb + 8 + kb_len);
+        kb_len += 2 + (uint16_t)olen;
+
+        put_uint16_t((uint16_t)mbedtls_mpi_size(&ecdsa->d), kb + 8 + kb_len); kb_len += 2;
+        mbedtls_mpi_write_binary(&ecdsa->d, kb + 8 + kb_len, mbedtls_mpi_size(&ecdsa->d));
+        kb_len += (uint16_t)mbedtls_mpi_size(&ecdsa->d);
+
+        mbedtls_ecp_point_write_binary(&ecdsa->grp,
+                                       &ecdsa->Q,
+                                       MBEDTLS_ECP_PF_UNCOMPRESSED,
+                                       &olen,
+                                       kb + 8 + kb_len + 2,
+                                       sizeof(kb) - 8 - kb_len - 2);
+        put_uint16_t((uint16_t)olen, kb + 8 + kb_len);
+        kb_len += 2 + (uint16_t)olen;
+
+        algo = (uint8_t *) "\x00\x0A\x04\x00\x7F\x00\x07\x02\x02\x02\x02\x03";
         algo_len = 12;
     }
     memset(out, 0, *out_len);
     *out_len = 0;
 
-    memcpy(out+*out_len, kcv, 8);
+    memcpy(out + *out_len, kcv, 8);
     *out_len += 8;
 
-    if (key_type & HSM_KEY_AES)
+    if (key_type & PICO_KEYS_KEY_AES) {
         out[*out_len] = 15;
-    else if (key_type & HSM_KEY_RSA)
+    }
+    else if (key_type & PICO_KEYS_KEY_RSA) {
         out[*out_len] = 5;
-    else if (key_type & HSM_KEY_EC)
+    }
+    else if (key_type & PICO_KEYS_KEY_EC) {
         out[*out_len] = 12;
+    }
     *out_len += 1;
 
     if (algo) {
-        memcpy(out+*out_len, algo, algo_len);
+        memcpy(out + *out_len, algo, algo_len);
         *out_len += algo_len;
     }
-    else
+    else {
         *out_len += 2;
+    }
 
     if (allowed && allowed_len > 0) {
-        put_uint16_t(allowed_len, out+*out_len); *out_len += 2;
-        memcpy(out+*out_len, allowed, allowed_len);
+        put_uint16_t(allowed_len, out + *out_len); *out_len += 2;
+        memcpy(out + *out_len, allowed, allowed_len);
         *out_len += allowed_len;
     }
-    else
+    else {
         *out_len += 2;
+    }
     //add 4 zeros
     *out_len += 4;
 
     memcpy(kb, random_bytes_get(8), 8);
     kb_len += 8; //8 random bytes
-    int kb_len_pad = ((int)(kb_len/16))*16;
-    if (kb_len % 16 > 0)
-        kb_len_pad = ((int)(kb_len/16)+1)*16;
+    uint16_t kb_len_pad = ((uint16_t) (kb_len / 16)) * 16;
+    if (kb_len % 16 > 0) {
+        kb_len_pad = ((int) (kb_len / 16) + 1) * 16;
+    }
     //key already copied at kb+10
     if (kb_len < kb_len_pad) {
         kb[kb_len] = 0x80;
     }
-    r = aes_encrypt(kenc, NULL, 256, HSM_AES_MODE_CBC, kb, kb_len_pad);
-    if (r != CCID_OK)
+    r = aes_encrypt(kenc, NULL, 256, PICO_KEYS_AES_MODE_CBC, kb, kb_len_pad);
+    if (r != CCID_OK) {
         return r;
+    }
 
-    memcpy(out+*out_len, kb, kb_len_pad);
+    memcpy(out + *out_len, kb, kb_len_pad);
     *out_len += kb_len_pad;
 
-    r = mbedtls_cipher_cmac(mbedtls_cipher_info_from_type(MBEDTLS_CIPHER_AES_256_ECB), kmac, 256, out, *out_len, out+*out_len);
+    r = mbedtls_cipher_cmac(mbedtls_cipher_info_from_type(MBEDTLS_CIPHER_AES_256_ECB),
+                            kmac,
+                            256,
+                            out,
+                            *out_len,
+                            out + *out_len);
 
     *out_len += 16;
-    if (r != 0)
+    if (r != 0) {
         return r;
+    }
     return CCID_OK;
 }
 
 int dkek_type_key(const uint8_t *in) {
-    if (in[8] == 5 || in[8] == 6)
-        return HSM_KEY_RSA;
-    else if (in[8] == 12)
-        return HSM_KEY_EC;
-    else if (in[8] == 15)
-        return HSM_KEY_AES;
+    if (in[8] == 5 || in[8] == 6) {
+        return PICO_KEYS_KEY_RSA;
+    }
+    else if (in[8] == 12) {
+        return PICO_KEYS_KEY_EC;
+    }
+    else if (in[8] == 15) {
+        return PICO_KEYS_KEY_AES;
+    }
     return 0x0;
 }
 
-int dkek_decode_key(uint8_t id, void *key_ctx, const uint8_t *in, size_t in_len, int *key_size_out, uint8_t **allowed, size_t *allowed_len) {
+int dkek_decode_key(uint8_t id,
+                    void *key_ctx,
+                    const uint8_t *in,
+                    uint16_t in_len,
+                    int *key_size_out,
+                    uint8_t **allowed,
+                    uint16_t *allowed_len) {
     uint8_t kcv[8];
     int r = 0;
     memset(kcv, 0, sizeof(kcv));
     r = dkek_kcv(id, kcv);
-    if (r != CCID_OK)
+    if (r != CCID_OK) {
         return r;
+    }
 
     uint8_t kmac[32];
     memset(kmac, 0, sizeof(kmac));
     r = dkek_kmac(id, kmac);
-    if (r != CCID_OK)
+    if (r != CCID_OK) {
         return r;
+    }
 
     uint8_t kenc[32];
     memset(kenc, 0, sizeof(kenc));
     r = dkek_kenc(id, kenc);
-    if (r != CCID_OK)
+    if (r != CCID_OK) {
         return r;
+    }
 
-    if (memcmp(kcv, in, 8) != 0)
+    if (memcmp(kcv, in, 8) != 0) {
         return CCID_WRONG_DKEK;
+    }
 
     uint8_t signature[16];
-    r = mbedtls_cipher_cmac(mbedtls_cipher_info_from_type(MBEDTLS_CIPHER_AES_256_ECB), kmac, 256, in, in_len-16, signature);
-    if (r != 0)
+    r = mbedtls_cipher_cmac(mbedtls_cipher_info_from_type(MBEDTLS_CIPHER_AES_256_ECB),
+                            kmac,
+                            256,
+                            in,
+                            in_len - 16,
+                            signature);
+    if (r != 0) {
         return CCID_WRONG_SIGNATURE;
-    if (memcmp(signature, in+in_len-16, 16) != 0)
+    }
+    if (memcmp(signature, in + in_len - 16, 16) != 0) {
         return CCID_WRONG_SIGNATURE;
+    }
 
     int key_type = in[8];
-    if (key_type != 5 && key_type != 6 && key_type != 12 && key_type != 15)
+    if (key_type != 5 && key_type != 6 && key_type != 12 && key_type != 15) {
         return CCID_WRONG_DATA;
+    }
 
-    if ((key_type == 5 || key_type == 6) && memcmp(in+9, "\x00\x0A\x04\x00\x7F\x00\x07\x02\x02\x02\x01\x02", 12) != 0)
+    if ((key_type == 5 || key_type == 6) &&
+        memcmp(in + 9, "\x00\x0A\x04\x00\x7F\x00\x07\x02\x02\x02\x01\x02", 12) != 0) {
         return CCID_WRONG_DATA;
+    }
 
-    if (key_type == 12 && memcmp(in+9, "\x00\x0A\x04\x00\x7F\x00\x07\x02\x02\x02\x02\x03", 12) != 0)
+    if (key_type == 12 &&
+        memcmp(in + 9, "\x00\x0A\x04\x00\x7F\x00\x07\x02\x02\x02\x02\x03", 12) != 0) {
         return CCID_WRONG_DATA;
+    }
 
-    if (key_type == 15 && memcmp(in+9, "\x00\x08\x60\x86\x48\x01\x65\x03\x04\x01", 10) != 0)
+    if (key_type == 15 && memcmp(in + 9, "\x00\x08\x60\x86\x48\x01\x65\x03\x04\x01", 10) != 0) {
         return CCID_WRONG_DATA;
+    }
 
-    size_t ofs = 9;
+    uint16_t ofs = 9;
 
     //OID
-    size_t len = get_uint16_t(in, ofs);
-    ofs += len+2;
+    uint16_t len = get_uint16_t(in, ofs);
+    ofs += len + 2;
 
     //Allowed algorithms
     len = get_uint16_t(in, ofs);
-    *allowed = (uint8_t *)(in+ofs+2);
+    *allowed = (uint8_t *) (in + ofs + 2);
     *allowed_len = len;
-    ofs += len+2;
+    ofs += len + 2;
 
     //Access conditions
     len = get_uint16_t(in, ofs);
-    ofs += len+2;
+    ofs += len + 2;
 
     //Key OID
     len = get_uint16_t(in, ofs);
-    ofs += len+2;
+    ofs += len + 2;
 
-    if ((in_len-16-ofs) % 16 != 0)
+    if ((in_len - 16 - ofs) % 16 != 0) {
         return CCID_WRONG_PADDING;
-    uint8_t kb[8+2*4+2*4096/8+3+13]; //worst case: RSA-4096  (plus, 13 bytes padding)
+    }
+    uint8_t kb[8 + 2 * 4 + 2 * 4096 / 8 + 3 + 13]; //worst case: RSA-4096  (plus, 13 bytes padding)
     memset(kb, 0, sizeof(kb));
-    memcpy(kb, in+ofs, in_len-16-ofs);
-    r = aes_decrypt(kenc, NULL, 256, HSM_AES_MODE_CBC, kb, in_len-16-ofs);
-    if (r != CCID_OK)
+    memcpy(kb, in + ofs, in_len - 16 - ofs);
+    r = aes_decrypt(kenc, NULL, 256, PICO_KEYS_AES_MODE_CBC, kb, in_len - 16 - ofs);
+    if (r != CCID_OK) {
         return r;
+    }
 
     int key_size = get_uint16_t(kb, 8);
-    if (key_size_out)
+    if (key_size_out) {
         *key_size_out = key_size;
+    }
     ofs = 10;
     if (key_type == 5 || key_type == 6) {
-        mbedtls_rsa_context *rsa = (mbedtls_rsa_context *)key_ctx;
+        mbedtls_rsa_context *rsa = (mbedtls_rsa_context *) key_ctx;
         mbedtls_rsa_init(rsa);
         if (key_type == 5) {
             len = get_uint16_t(kb, ofs); ofs += 2;
-            r = mbedtls_mpi_read_binary(&rsa->D, kb+ofs, len); ofs += len;
+            r = mbedtls_mpi_read_binary(&rsa->D, kb + ofs, len); ofs += len;
             if (r != 0) {
                 mbedtls_rsa_free(rsa);
                 return CCID_WRONG_DATA;
             }
 
             len = get_uint16_t(kb, ofs); ofs += 2;
-            r = mbedtls_mpi_read_binary(&rsa->N, kb+ofs, len); ofs += len;
+            r = mbedtls_mpi_read_binary(&rsa->N, kb + ofs, len); ofs += len;
             if (r != 0) {
                 mbedtls_rsa_free(rsa);
                 return CCID_WRONG_DATA;
@@ -477,33 +614,33 @@ int dkek_decode_key(uint8_t id, void *key_ctx, const uint8_t *in, size_t in_len,
         }
         else if (key_type == 6) {
             //DP-1
-            len = get_uint16_t(kb, ofs); ofs += len+2;
+            len = get_uint16_t(kb, ofs); ofs += len + 2;
 
             //DQ-1
-            len = get_uint16_t(kb, ofs); ofs += len+2;
+            len = get_uint16_t(kb, ofs); ofs += len + 2;
 
             len = get_uint16_t(kb, ofs); ofs += 2;
-            r = mbedtls_mpi_read_binary(&rsa->P, kb+ofs, len); ofs += len;
+            r = mbedtls_mpi_read_binary(&rsa->P, kb + ofs, len); ofs += len;
             if (r != 0) {
                 mbedtls_rsa_free(rsa);
                 return CCID_WRONG_DATA;
             }
 
             //PQ
-            len = get_uint16_t(kb, ofs); ofs += len+2;
+            len = get_uint16_t(kb, ofs); ofs += len + 2;
 
             len = get_uint16_t(kb, ofs); ofs += 2;
-            r = mbedtls_mpi_read_binary(&rsa->Q, kb+ofs, len); ofs += len;
+            r = mbedtls_mpi_read_binary(&rsa->Q, kb + ofs, len); ofs += len;
             if (r != 0) {
                 mbedtls_rsa_free(rsa);
                 return CCID_WRONG_DATA;
             }
             //N
-            len = get_uint16_t(kb, ofs); ofs += len+2;
+            len = get_uint16_t(kb, ofs); ofs += len + 2;
         }
 
         len = get_uint16_t(kb, ofs); ofs += 2;
-        r = mbedtls_mpi_read_binary(&rsa->E, kb+ofs, len); ofs += len;
+        r = mbedtls_mpi_read_binary(&rsa->E, kb + ofs, len); ofs += len;
         if (r != 0) {
             mbedtls_rsa_free(rsa);
             return CCID_WRONG_DATA;
@@ -536,18 +673,18 @@ int dkek_decode_key(uint8_t id, void *key_ctx, const uint8_t *in, size_t in_len,
         }
     }
     else if (key_type == 12) {
-        mbedtls_ecdsa_context *ecdsa = (mbedtls_ecdsa_context *)key_ctx;
+        mbedtls_ecdsa_context *ecdsa = (mbedtls_ecdsa_context *) key_ctx;
         mbedtls_ecdsa_init(ecdsa);
 
         //A
-        len = get_uint16_t(kb, ofs); ofs += len+2;
+        len = get_uint16_t(kb, ofs); ofs += len + 2;
 
         //B
-        len = get_uint16_t(kb, ofs); ofs += len+2;
+        len = get_uint16_t(kb, ofs); ofs += len + 2;
 
         //P
         len = get_uint16_t(kb, ofs); ofs += 2;
-        mbedtls_ecp_group_id ec_id = ec_get_curve_from_prime(kb+ofs, len);
+        mbedtls_ecp_group_id ec_id = ec_get_curve_from_prime(kb + ofs, len);
         if (ec_id == MBEDTLS_ECP_DP_NONE) {
             mbedtls_ecdsa_free(ecdsa);
             return CCID_WRONG_DATA;
@@ -555,21 +692,50 @@ int dkek_decode_key(uint8_t id, void *key_ctx, const uint8_t *in, size_t in_len,
         ofs += len;
 
         //N
-        len = get_uint16_t(kb, ofs); ofs += len+2;
+        len = get_uint16_t(kb, ofs); ofs += len + 2;
 
         //G
-        len = get_uint16_t(kb, ofs); ofs += len+2;
+        len = get_uint16_t(kb, ofs);
+        if (ec_id == MBEDTLS_ECP_DP_CURVE25519 && kb[ofs + 2] != 0x09) {
+            ec_id = MBEDTLS_ECP_DP_ED25519;
+        }
+        else if (ec_id == MBEDTLS_ECP_DP_CURVE448 && (len != 56 || kb[ofs + 2] != 0x05)) {
+            ec_id = MBEDTLS_ECP_DP_ED448;
+        }
+        ofs += len + 2;
 
         //d
         len = get_uint16_t(kb, ofs); ofs += 2;
-        r = mbedtls_ecp_read_key(ec_id, ecdsa, kb+ofs, len);
+        r = mbedtls_ecp_read_key(ec_id, ecdsa, kb + ofs, len);
+        if (r != 0) {
+            mbedtls_ecdsa_free(ecdsa);
+            return CCID_EXEC_ERROR;
+        }
+        ofs += len;
+
+        //Q
+        len = get_uint16_t(kb, ofs); ofs += 2;
+        r = mbedtls_ecp_point_read_binary(&ecdsa->grp, &ecdsa->Q, kb + ofs, len);
+        if (r != 0) {
+            if (mbedtls_ecp_get_type(&ecdsa->grp) == MBEDTLS_ECP_TYPE_EDWARDS) {
+                r = mbedtls_ecp_point_edwards(&ecdsa->grp, &ecdsa->Q, &ecdsa->d, random_gen, NULL);
+            }
+            else {
+                r = mbedtls_ecp_mul(&ecdsa->grp, &ecdsa->Q, &ecdsa->d, &ecdsa->grp.G, random_gen, NULL);
+            }
+            if (r != 0) {
+                mbedtls_ecdsa_free(ecdsa);
+                return CCID_EXEC_ERROR;
+            }
+        }
+        r = mbedtls_ecp_check_pub_priv(ecdsa, ecdsa, random_gen, NULL);
         if (r != 0) {
             mbedtls_ecdsa_free(ecdsa);
             return CCID_EXEC_ERROR;
         }
     }
     else if (key_type == 15) {
-        memcpy(key_ctx, kb+ofs, key_size);
+        memcpy(key_ctx, kb + ofs, key_size);
     }
     return CCID_OK;
 }

src/hsm/kek.h

@@ -18,6 +18,12 @@
 #ifndef _DKEK_H_
 #define _DKEK_H_
 
+#include "crypto_utils.h"
+#if defined(ENABLE_EMULATION) || defined(ESP_PLATFORM)
+#include <stdbool.h>
+#endif
+
+
 extern int load_mkek(uint8_t *);
 extern int store_mkek(const uint8_t *);
 extern int save_dkek_key(uint8_t, const uint8_t *key);
@@ -26,23 +32,49 @@ extern void init_mkek();
 extern void release_mkek(uint8_t *);
 extern int import_dkek_share(uint8_t, const uint8_t *share);
 extern int dkek_kcv(uint8_t, uint8_t *kcv);
-extern int mkek_encrypt(uint8_t *data, size_t len);
-extern int mkek_decrypt(uint8_t *data, size_t len);
-extern int dkek_encode_key(uint8_t, void *key_ctx, int key_type, uint8_t *out, size_t *out_len, const uint8_t *, size_t);
+extern int mkek_encrypt(uint8_t *data, uint16_t len);
+extern int mkek_decrypt(uint8_t *data, uint16_t len);
+extern int dkek_encode_key(uint8_t,
+                           void *key_ctx,
+                           int key_type,
+                           uint8_t *out,
+                           uint16_t *out_len,
+                           const uint8_t *,
+                           uint16_t);
 extern int dkek_type_key(const uint8_t *in);
-extern int dkek_decode_key(uint8_t, void *key_ctx, const uint8_t *in, size_t in_len, int *key_size_out, uint8_t **, size_t *);
+extern int dkek_decode_key(uint8_t,
+                           void *key_ctx,
+                           const uint8_t *in,
+                           uint16_t in_len,
+                           int *key_size_out,
+                           uint8_t **,
+                           uint16_t *);
 
-#define MAX_DKEK_ENCODE_KEY_BUFFER (8+1+12+6+(8+2*4+2*4096/8+3+13)+16)
+#define MAX_DKEK_ENCODE_KEY_BUFFER (8 + 1 + 12 + 6 + (8 + 2 * 4 + 2 * 4096 / 8 + 3 + 13) + 16)
 
 #define MAX_KEY_DOMAINS 16
 
 #define MKEK_IV_SIZE     (IV_SIZE)
 #define MKEK_KEY_SIZE    (32)
 #define MKEK_KEY_CS_SIZE (4)
-#define MKEK_SIZE        (MKEK_IV_SIZE+MKEK_KEY_SIZE+MKEK_KEY_CS_SIZE)
+#define MKEK_SIZE        (MKEK_IV_SIZE + MKEK_KEY_SIZE + MKEK_KEY_CS_SIZE)
 #define MKEK_IV(p)       (p)
-#define MKEK_KEY(p)      (MKEK_IV(p)+MKEK_IV_SIZE)
-#define MKEK_CHECKSUM(p) (MKEK_KEY(p)+MKEK_KEY_SIZE)
+#define MKEK_KEY(p)      (MKEK_IV(p) + MKEK_IV_SIZE)
+#define MKEK_CHECKSUM(p) (MKEK_KEY(p) + MKEK_KEY_SIZE)
 #define DKEK_KEY_SIZE    (32)
 
+extern uint8_t mkek_mask[MKEK_KEY_SIZE];
+extern bool has_mkek_mask;
+
+typedef struct mse {
+    uint8_t Qpt[65];
+    uint8_t key_enc[12 + 32];
+    bool init;
+} mse_t;
+extern mse_t mse;
+
+extern int mse_decrypt_ct(uint8_t *, size_t);
+
+extern uint8_t pending_save_dkek;
+
 #endif

src/hsm/oid.h

@@ -18,11 +18,24 @@
 #ifndef _OID_H_
 #define _OID_H_
 
-#include <stdlib.h>
-#include "pico/stdlib.h"
-
 #define OID_BSI_DE                      "\x04\x00\x7F\x00\x07"
 
+#define OID_ECKA                        OID_BSI_DE "\x01\x01\x05"
+#define OID_ECKA_EG                     OID_ECKA "\x01"
+#define OID_ECKA_EG_X963KDF             OID_ECKA_EG "\x01"
+#define OID_ECKA_EG_X963KDF_SHA1        OID_ECKA_EG_X963KDF "\x01"
+#define OID_ECKA_EG_X963KDF_SHA224      OID_ECKA_EG_X963KDF "\x02"
+#define OID_ECKA_EG_X963KDF_SHA256      OID_ECKA_EG_X963KDF "\x03"
+#define OID_ECKA_EG_X963KDF_SHA384      OID_ECKA_EG_X963KDF "\x04"
+#define OID_ECKA_EG_X963KDF_SHA512      OID_ECKA_EG_X963KDF "\x05"
+#define OID_ECKA_DH                     OID_ECKA "\x02"
+#define OID_ECKA_DH_X963KDF             OID_ECKA_DH "\x01"
+#define OID_ECKA_DH_X963KDF_SHA1        OID_ECKA_DH_X963KDF "\x01"
+#define OID_ECKA_DH_X963KDF_SHA224      OID_ECKA_DH_X963KDF "\x02"
+#define OID_ECKA_DH_X963KDF_SHA256      OID_ECKA_DH_X963KDF "\x03"
+#define OID_ECKA_DH_X963KDF_SHA384      OID_ECKA_DH_X963KDF "\x04"
+#define OID_ECKA_DH_X963KDF_SHA512      OID_ECKA_DH_X963KDF "\x05"
+
 #define OID_ID_PK                       OID_BSI_DE "\x02\x02\x01"
 #define OID_ID_PK_DH                    OID_ID_PK "\x01"
 #define OID_ID_PK_ECDH                  OID_ID_PK "\x02"
@@ -103,4 +116,62 @@
 #define OID_CC_FF_PKA                   OID_CC_FORMAT "\x03"
 #define OID_CC_FF_KDA                   OID_CC_FORMAT "\x04"
 
+#define OID_RSADSI                      "\x2A\x86\x48\x86\xF7\x0D"
+
+#define OID_PKCS                        OID_RSADSI "\x01"
+
+#define OID_PKCS_5                      OID_PKCS "\x05"
+#define OID_PKCS5_PBKDF2                OID_PKCS_5 "\x0C"
+#define OID_PKCS5_PBES2                 OID_PKCS_5 "\x0D"
+
+#define OID_PKCS_9                      OID_PKCS "\x09"
+
+#define OID_PKCS9_SMIME_ALG             OID_PKCS_9 "\x10\x03"
+
+#define OID_CHACHA20_POLY1305           OID_PKCS9_SMIME_ALG "\x12"
+#define OID_HKDF_SHA256                 OID_PKCS9_SMIME_ALG "\x1D"
+#define OID_HKDF_SHA384                 OID_PKCS9_SMIME_ALG "\x1E"
+#define OID_HKDF_SHA512                 OID_PKCS9_SMIME_ALG "\x1F"
+
+
+#define OID_DIGEST                      OID_RSADSI "\x02"
+
+#define OID_HMAC_SHA1                   OID_DIGEST "\x07"
+#define OID_HMAC_SHA224                 OID_DIGEST "\x08"
+#define OID_HMAC_SHA256                 OID_DIGEST "\x09"
+#define OID_HMAC_SHA384                 OID_DIGEST "\x0A"
+#define OID_HMAC_SHA512                 OID_DIGEST "\x0B"
+
+#define OID_KDF_X963                    "\x2B\x81\x05\x10\x86\x48\x3F"
+
+#define OID_NIST_ALG                    "\x60\x86\x48\x01\x65\x03\x04"
+#define OID_NIST_AES                    OID_NIST_ALG "\x01"
+#define OID_AES128_ECB                  OID_NIST_AES "\x01"
+#define OID_AES128_CBC                  OID_NIST_AES "\x02"
+#define OID_AES128_OFB                  OID_NIST_AES "\x03"
+#define OID_AES128_CFB                  OID_NIST_AES "\x04"
+#define OID_AES128_GCM                  OID_NIST_AES "\x06"
+#define OID_AES128_CCM                  OID_NIST_AES "\x07"
+#define OID_AES128_CTR                  OID_NIST_AES "\x09" // Not existing
+#define OID_AES192_ECB                  OID_NIST_AES "\x15"
+#define OID_AES192_CBC                  OID_NIST_AES "\x16"
+#define OID_AES192_OFB                  OID_NIST_AES "\x17"
+#define OID_AES192_CFB                  OID_NIST_AES "\x18"
+#define OID_AES192_GCM                  OID_NIST_AES "\x1A"
+#define OID_AES192_CCM                  OID_NIST_AES "\x1B"
+#define OID_AES192_CTR                  OID_NIST_AES "\x1D" // Not existing
+#define OID_AES256_ECB                  OID_NIST_AES "\x29"
+#define OID_AES256_CBC                  OID_NIST_AES "\x2A"
+#define OID_AES256_OFB                  OID_NIST_AES "\x2B"
+#define OID_AES256_CFB                  OID_NIST_AES "\x2C"
+#define OID_AES256_GCM                  OID_NIST_AES "\x2E"
+#define OID_AES256_CCM                  OID_NIST_AES "\x2F"
+#define OID_AES256_CTR                  OID_NIST_AES "\x31" // Not existing
+
+#define OID_IEEE_ALG                    "\x2B\x6F\x02\x8C\x53\x00\x00\x01"
+#define OID_AES128_XTS                  OID_IEEE_ALG "\x01"
+#define OID_AES256_XTS                  OID_IEEE_ALG "\x02"
+
+#define OID_HD                          "\x2B\x06\x01\x04\x01\x83\xA8\x78\x05\x8D\x6B"
+
 #endif

src/hsm/sc_hsm.c

@@ -17,30 +17,31 @@
 
 #include "sc_hsm.h"
 #include "files.h"
-#include "common.h"
 #include "version.h"
 #include "crypto_utils.h"
 #include "kek.h"
 #include "eac.h"
 #include "cvc.h"
 #include "asn1.h"
-#include "ccid.h"
+#include "pico_keys.h"
 #include "usb.h"
+#include "random.h"
 
 const uint8_t sc_hsm_aid[] = {
     11,
-    0xE8,0x2B,0x06,0x01,0x04,0x01,0x81,0xC3,0x1F,0x02,0x01
+    0xE8, 0x2B, 0x06, 0x01, 0x04, 0x01, 0x81, 0xC3, 0x1F, 0x02, 0x01
 };
 
 const uint8_t atr_sc_hsm[] = {
     24,
-    0x3B,0xFE,0x18,0x00,0x00,0x81,0x31,0xFE,0x45,0x80,0x31,0x81,0x54,0x48,0x53,0x4D,0x31,0x73,0x80,0x21,0x40,0x81,0x07,0xFA
+    0x3B, 0xFE, 0x18, 0x00, 0x00, 0x81, 0x31, 0xFE, 0x45, 0x80, 0x31, 0x81, 0x54, 0x48, 0x53, 0x4D,
+    0x31, 0x73, 0x80, 0x21, 0x40, 0x81, 0x07, 0xFA
 };
 
 uint8_t session_pin[32], session_sopin[32];
 bool has_session_pin = false, has_session_sopin = false;
 const uint8_t *dev_name = NULL;
-size_t dev_name_len = 0;
+uint16_t dev_name_len = 0;
 
 static int sc_hsm_process_apdu();
 
@@ -50,6 +51,7 @@ static int sc_hsm_unload();
 extern int cmd_select();
 extern void select_file(file_t *pe);
 extern int cmd_list_keys();
+
 extern int cmd_read_binary();
 extern int cmd_verify();
 extern int cmd_reset_retry();
@@ -74,91 +76,91 @@ extern int cmd_general_authenticate();
 extern int cmd_session_pin();
 extern int cmd_puk_auth();
 extern int cmd_pso();
+extern int cmd_bip_slip();
 
-app_t *sc_hsm_select_aid(app_t *a) {
-    if (!memcmp(apdu.data, sc_hsm_aid+1, MIN(apdu.nc,sc_hsm_aid[0]))) {
-        a->aid = sc_hsm_aid;
-        a->process_apdu = sc_hsm_process_apdu;
-        a->unload = sc_hsm_unload;
-        init_sc_hsm();
-        return a;
-    }
-    return NULL;
+extern const uint8_t *ccid_atr;
+
+int sc_hsm_select_aid(app_t *a) {
+    a->process_apdu = sc_hsm_process_apdu;
+    a->unload = sc_hsm_unload;
+    init_sc_hsm();
+    return CCID_OK;
 }
 
-void __attribute__ ((constructor)) sc_hsm_ctor() {
+INITIALIZER( sc_hsm_ctor ) {
+    printf("INITIALIZER\n");
     ccid_atr = atr_sc_hsm;
-    register_app(sc_hsm_select_aid);
+    register_app(sc_hsm_select_aid, sc_hsm_aid);
 }
 
 void scan_files() {
-    file_pin1 = search_by_fid(0x1081, NULL, SPECIFY_EF);
+    file_pin1 = search_file(EF_PIN1);
     if (file_pin1) {
         if (!file_pin1->data) {
-            printf("PIN1 is empty. Initializing with default password\r\n");
+            printf("PIN1 is empty. Initializing with default password\n");
             const uint8_t empty[33] = { 0 };
-            flash_write_data_to_file(file_pin1, empty, sizeof(empty));
+            file_put_data(file_pin1, empty, sizeof(empty));
         }
     }
     else {
-        printf("FATAL ERROR: PIN1 not found in memory!\r\n");
+        printf("FATAL ERROR: PIN1 not found in memory!\n");
     }
-    file_sopin = search_by_fid(0x1088, NULL, SPECIFY_EF);
+    file_sopin = search_file(EF_SOPIN);
     if (file_sopin) {
         if (!file_sopin->data) {
-            printf("SOPIN is empty. Initializing with default password\r\n");
+            printf("SOPIN is empty. Initializing with default password\n");
             const uint8_t empty[33] = { 0 };
-            flash_write_data_to_file(file_sopin, empty, sizeof(empty));
+            file_put_data(file_sopin, empty, sizeof(empty));
         }
     }
     else {
-        printf("FATAL ERROR: SOPIN not found in memory!\r\n");
+        printf("FATAL ERROR: SOPIN not found in memory!\n");
     }
-    file_retries_pin1 = search_by_fid(0x1083, NULL, SPECIFY_EF);
+    file_retries_pin1 = search_file(EF_PIN1_RETRIES);
     if (file_retries_pin1) {
         if (!file_retries_pin1->data) {
             printf("Retries PIN1 is empty. Initializing with default retriesr\n");
             const uint8_t retries = 3;
-            flash_write_data_to_file(file_retries_pin1, &retries, sizeof(uint8_t));
+            file_put_data(file_retries_pin1, &retries, sizeof(uint8_t));
         }
     }
     else {
-        printf("FATAL ERROR: Retries PIN1 not found in memory!\r\n");
+        printf("FATAL ERROR: Retries PIN1 not found in memory!\n");
     }
-    file_retries_sopin = search_by_fid(0x108A, NULL, SPECIFY_EF);
+    file_retries_sopin = search_file(EF_SOPIN_RETRIES);
     if (file_retries_sopin) {
         if (!file_retries_sopin->data) {
-            printf("Retries SOPIN is empty. Initializing with default retries\r\n");
+            printf("Retries SOPIN is empty. Initializing with default retries\n");
             const uint8_t retries = 15;
-            flash_write_data_to_file(file_retries_sopin, &retries, sizeof(uint8_t));
+            file_put_data(file_retries_sopin, &retries, sizeof(uint8_t));
         }
     }
     else {
-        printf("FATAL ERROR: Retries SOPIN not found in memory!\r\n");
+        printf("FATAL ERROR: Retries SOPIN not found in memory!\n");
     }
     file_t *tf = NULL;
 
-    tf = search_by_fid(0x1082, NULL, SPECIFY_EF);
+    tf = search_file(EF_PIN1_MAX_RETRIES);
     if (tf) {
         if (!tf->data) {
             printf("Max retries PIN1 is empty. Initializing with default max retriesr\n");
             const uint8_t retries = 3;
-            flash_write_data_to_file(tf, &retries, sizeof(uint8_t));
+            file_put_data(tf, &retries, sizeof(uint8_t));
         }
     }
     else {
-        printf("FATAL ERROR: Max Retries PIN1 not found in memory!\r\n");
+        printf("FATAL ERROR: Max Retries PIN1 not found in memory!\n");
     }
-    tf = search_by_fid(0x1089, NULL, SPECIFY_EF);
+    tf = search_file(EF_SOPIN_MAX_RETRIES);
     if (tf) {
         if (!tf->data) {
-            printf("Max Retries SOPIN is empty. Initializing with default max retries\r\n");
+            printf("Max Retries SOPIN is empty. Initializing with default max retries\n");
             const uint8_t retries = 15;
-            flash_write_data_to_file(tf, &retries, sizeof(uint8_t));
+            file_put_data(tf, &retries, sizeof(uint8_t));
         }
     }
     else {
-        printf("FATAL ERROR: Retries SOPIN not found in memory!\r\n");
+        printf("FATAL ERROR: Retries SOPIN not found in memory!\n");
     }
     low_flash_available();
 }
@@ -173,24 +175,33 @@ int puk_store_entries = 0;
 PUK *current_puk = NULL;
 uint8_t puk_status[MAX_PUK];
 
-int add_cert_puk_store(const uint8_t *data, size_t data_len, bool copy) {
-    if (data == NULL || data_len == 0)
+int add_cert_puk_store(const uint8_t *data, uint16_t data_len, bool copy) {
+    if (data == NULL || data_len == 0) {
         return CCID_ERR_NULL_PARAM;
-    if (puk_store_entries == MAX_PUK_STORE_ENTRIES)
+    }
+    if (puk_store_entries == MAX_PUK_STORE_ENTRIES) {
         return CCID_ERR_MEMORY_FATAL;
+    }
 
     puk_store[puk_store_entries].copied = copy;
     if (copy == true) {
-        uint8_t *tmp = (uint8_t *)calloc(data_len, sizeof(uint8_t));
+        uint8_t *tmp = (uint8_t *) calloc(data_len, sizeof(uint8_t));
         memcpy(tmp, data, data_len);
         puk_store[puk_store_entries].cvcert = tmp;
     }
-    else
+    else {
         puk_store[puk_store_entries].cvcert = data;
+    }
     puk_store[puk_store_entries].cvcert_len = data_len;
-    puk_store[puk_store_entries].chr = cvc_get_chr(puk_store[puk_store_entries].cvcert, data_len, &puk_store[puk_store_entries].chr_len);
-    puk_store[puk_store_entries].car = cvc_get_car(puk_store[puk_store_entries].cvcert, data_len, &puk_store[puk_store_entries].car_len);
-    puk_store[puk_store_entries].puk = cvc_get_pub(puk_store[puk_store_entries].cvcert, data_len, &puk_store[puk_store_entries].puk_len);
+    puk_store[puk_store_entries].chr = cvc_get_chr(puk_store[puk_store_entries].cvcert,
+                                                   data_len,
+                                                   &puk_store[puk_store_entries].chr_len);
+    puk_store[puk_store_entries].car = cvc_get_car(puk_store[puk_store_entries].cvcert,
+                                                   data_len,
+                                                   &puk_store[puk_store_entries].car_len);
+    puk_store[puk_store_entries].puk = cvc_get_pub(puk_store[puk_store_entries].cvcert,
+                                                   data_len,
+                                                   &puk_store[puk_store_entries].puk_len);
 
     puk_store_entries++;
     return CCID_OK;
@@ -206,29 +217,43 @@ int puk_store_select_chr(const uint8_t *chr) {
     return CCID_ERR_FILE_NOT_FOUND;
 }
 
+void reset_puk_store() {
+    if (puk_store_entries > 0) { /* From previous session */
+        for (int i = 0; i < puk_store_entries; i++) {
+            if (puk_store[i].copied == true) {
+                free((uint8_t *) puk_store[i].cvcert);
+            }
+        }
+    }
+    memset(puk_store, 0, sizeof(puk_store));
+    puk_store_entries = 0;
+    file_t *fterm = search_file(EF_TERMCA);
+    if (fterm) {
+        uint8_t *p = NULL, *fterm_data = file_get_data(fterm), *pq = fterm_data;
+        uint16_t fterm_data_len = file_get_size(fterm);
+        asn1_ctx_t ctxi;
+        asn1_ctx_init(fterm_data, fterm_data_len, &ctxi);
+        while (walk_tlv(&ctxi, &p, NULL, NULL, NULL)) {
+            add_cert_puk_store(pq, (uint16_t)(p - pq), false);
+            pq = p;
+        }
+    }
+    for (int i = 0; i < 0xfe; i++) {
+        file_t *ef = search_file((CA_CERTIFICATE_PREFIX << 8) | (uint8_t)i);
+        if (ef && file_get_size(ef) > 0) {
+            add_cert_puk_store(file_get_data(ef), file_get_size(ef), false);
+        }
+    }
+    dev_name = cvc_get_chr(file_get_data(fterm), file_get_size(fterm), &dev_name_len);
+    memset(puk_status, 0, sizeof(puk_status));
+}
+
 void init_sc_hsm() {
     scan_all();
     has_session_pin = has_session_sopin = false;
     isUserAuthenticated = false;
     cmd_select();
-    if (puk_store_entries > 0) { /* From previous session */
-        for (int i = 0; i < puk_store_entries; i++) {
-            if (puk_store[i].copied == true)
-                free((uint8_t *)puk_store[i].cvcert);
-        }
-    }
-    memset(puk_store, 0, sizeof(puk_store));
-    puk_store_entries = 0;
-    file_t *fterm = search_by_fid(EF_TERMCA, NULL, SPECIFY_EF);
-    if (fterm)
-        add_cert_puk_store(file_get_data(fterm), file_get_size(fterm), false);
-    for (int i = 0; i < 0xfe; i++) {
-        file_t *ef = search_dynamic_file((CA_CERTIFICATE_PREFIX << 8) | i);
-        if (ef && file_get_size(ef) > 0)
-            add_cert_puk_store(file_get_data(ef), file_get_size(ef), false);
-    }
-    dev_name = cvc_get_chr(file_get_data(fterm), file_get_size(fterm), &dev_name_len);
-    memset(puk_status, 0, sizeof(puk_status));
+    reset_puk_store();
 }
 
 int sc_hsm_unload() {
@@ -239,120 +264,164 @@ int sc_hsm_unload() {
 }
 
 uint16_t get_device_options() {
-    file_t *ef = search_by_fid(EF_DEVOPS, NULL, SPECIFY_EF);
-    if (ef && ef->data && file_get_size(ef))
-        return (file_read_uint8(file_get_data(ef)) << 8) | file_read_uint8(file_get_data(ef)+1);
+    file_t *ef = search_file(EF_DEVOPS);
+    if (file_has_data(ef)) {
+        return (file_read_uint8(ef) << 8) | file_read_uint8_offset(ef, 1);
+    }
     return 0x0;
 }
 
 extern uint32_t board_button_read(void);
 
 bool wait_button_pressed() {
-    uint16_t opts = get_device_options();
     uint32_t val = EV_PRESS_BUTTON;
+#ifndef ENABLE_EMULATION
+    uint16_t opts = get_device_options();
     if (opts & HSM_OPT_BOOTSEL_BUTTON) {
         queue_try_add(&card_to_usb_q, &val);
-        do {
+        do{
             queue_remove_blocking(&usb_to_card_q, &val);
-        }
-        while (val != EV_BUTTON_PRESSED && val != EV_BUTTON_TIMEOUT);
+        } while (val != EV_BUTTON_PRESSED && val != EV_BUTTON_TIMEOUT);
     }
+#endif
     return val == EV_BUTTON_TIMEOUT;
 }
 
 int parse_token_info(const file_t *f, int mode) {
+    (void)f;
+#ifdef __FOR_CI
     char *label = "SmartCard-HSM";
+#else
+    char *label = "Pico-HSM";
+#endif
     char *manu = "Pol Henarejos";
     if (mode == 1) {
         uint8_t *p = res_APDU;
         *p++ = 0x30;
         *p++ = 0; //set later
         *p++ = 0x2; *p++ = 1; *p++ = HSM_VERSION_MAJOR;
-        *p++ = 0x4; *p++ = 8; pico_get_unique_board_id((pico_unique_board_id_t *)p); p += 8;
-        *p++ = 0xC; *p++ = strlen(manu); strcpy((char *)p, manu); p += strlen(manu);
-        *p++ = 0x80; *p++ = strlen(label); strcpy((char *)p, label); p += strlen(label);
+#ifndef ENABLE_EMULATION
+        *p++ = 0x4; *p++ = 8; memcpy(p, pico_serial.id, 8); p += 8;
+#else
+        *p++ = 0x4; *p++ = 8; memset(p, 0, 8); p += 8;
+#endif
+        *p++ = 0xC; *p++ = (uint8_t)strlen(manu); strcpy((char *) p, manu); p += strlen(manu);
+        *p++ = 0x80; *p++ = (uint8_t)strlen(label); strcpy((char *) p, label); p += strlen(label);
         *p++ = 0x3; *p++ = 2; *p++ = 4; *p++ = 0x30;
-        res_APDU_size = p-res_APDU;
-        res_APDU[1] = res_APDU_size-2;
+        res_APDU_size = (uint16_t)(p - res_APDU);
+        res_APDU[1] = (uint8_t)res_APDU_size - 2;
     }
-    return 2+(2+1)+(2+8)+(2+strlen(manu))+(2+strlen(label))+(2+2);
+    return (int)(2 + (2 + 1) + (2 + 8) + (2 + strlen(manu)) + (2 + strlen(label)) + (2 + 2));
+}
+
+int parse_ef_dir(const file_t *f, int mode) {
+    (void)f;
+#ifdef __FOR_CI
+    char *label = "SmartCard-HSM";
+#else
+    char *label = "Pico-HSM";
+#endif
+    if (mode == 1) {
+        uint8_t *p = res_APDU;
+        *p++ = 0x61;
+        *p++ = 0; //set later
+        *p++ = 0x4F; *p++ = sc_hsm_aid[0]; memcpy(p, sc_hsm_aid + 1, sc_hsm_aid[0]); p += sc_hsm_aid[0];
+        *p++ = 0x50; *p++ = (uint8_t)strlen(label); strcpy((char *) p, label); p += strlen(label);
+        res_APDU_size = (uint16_t)(p - res_APDU);
+        res_APDU[1] = (uint8_t)res_APDU_size - 2;
+    }
+    return (int)(2 + (2 + sc_hsm_aid[0]) + (2 + strlen(label)));
 }
 
 int pin_reset_retries(const file_t *pin, bool force) {
-    if (!pin)
+    if (!pin) {
         return CCID_ERR_NULL_PARAM;
-    const file_t *max = search_by_fid(pin->fid+1, NULL, SPECIFY_EF);
-    const file_t *act = search_by_fid(pin->fid+2, NULL, SPECIFY_EF);
-    if (!max || !act)
+    }
+    const file_t *max = search_file(pin->fid + 1);
+    const file_t *act = search_file(pin->fid + 2);
+    if (!max || !act) {
         return CCID_ERR_FILE_NOT_FOUND;
-    uint8_t retries = file_read_uint8(file_get_data(act));
-    if (retries == 0 && force == false) //blocked
+    }
+    uint8_t retries = file_read_uint8(act);
+    if (retries == 0 && force == false) { // blocked
         return CCID_ERR_BLOCKED;
-    retries = file_read_uint8(file_get_data(max));
-    int r = flash_write_data_to_file((file_t *)act, &retries, sizeof(retries));
+    }
+    retries = file_read_uint8(max);
+    int r = file_put_data((file_t *) act, &retries, sizeof(retries));
     low_flash_available();
     return r;
 }
 
 int pin_wrong_retry(const file_t *pin) {
-    if (!pin)
+    if (!pin) {
         return CCID_ERR_NULL_PARAM;
-    const file_t *act = search_by_fid(pin->fid+2, NULL, SPECIFY_EF);
-    if (!act)
+    }
+    const file_t *act = search_file(pin->fid + 2);
+    if (!act) {
         return CCID_ERR_FILE_NOT_FOUND;
-    uint8_t retries = file_read_uint8(file_get_data(act));
+    }
+    uint8_t retries = file_read_uint8(act);
     if (retries > 0) {
         retries -= 1;
-        int r = flash_write_data_to_file((file_t *)act, &retries, sizeof(retries));
-        if (r != CCID_OK)
+        int r = file_put_data((file_t *) act, &retries, sizeof(retries));
+        if (r != CCID_OK) {
             return r;
+        }
         low_flash_available();
-        if (retries == 0)
+        if (retries == 0) {
             return CCID_ERR_BLOCKED;
+        }
         return retries;
     }
     return CCID_ERR_BLOCKED;
 }
 
 bool pka_enabled() {
-    file_t *ef_puk = search_by_fid(EF_PUKAUT, NULL, SPECIFY_EF);
-    return ef_puk && ef_puk->data && file_get_size(ef_puk) > 0 && file_read_uint8(file_get_data(ef_puk)) > 0;
+    file_t *ef_puk = search_file(EF_PUKAUT);
+    return file_has_data(ef_puk) && file_read_uint8(ef_puk) > 0;
 }
 
-int check_pin(const file_t *pin, const uint8_t *data, size_t len) {
-    if (!pin || !pin->data || file_get_size(pin) == 0) {
+uint16_t check_pin(const file_t *pin, const uint8_t *data, uint16_t len) {
+    if (!file_has_data((file_t *) pin)) {
         return SW_REFERENCE_NOT_FOUND();
     }
-    if (pka_enabled() == false)
+    if (pka_enabled() == false) {
         isUserAuthenticated = false;
+    }
     has_session_pin = has_session_sopin = false;
     if (is_secured_apdu() && sm_session_pin_len > 0 && pin == file_pin1) {
         if (len == sm_session_pin_len && memcmp(data, sm_session_pin, len) != 0) {
             int retries;
-            if ((retries = pin_wrong_retry(pin)) < CCID_OK)
+            if ((retries = pin_wrong_retry(pin)) < CCID_OK) {
                 return SW_PIN_BLOCKED();
-            return set_res_sw(0x63, 0xc0 | retries);
+            }
+            return set_res_sw(0x63, 0xc0 | (uint8_t)retries);
         }
     }
     else {
         uint8_t dhash[32];
         double_hash_pin(data, len, dhash);
-        if (sizeof(dhash) != file_get_size(pin)-1) //1 byte for pin len
+        if (sizeof(dhash) != file_get_size(pin) - 1) { // 1 byte for pin len
             return SW_CONDITIONS_NOT_SATISFIED();
-        if (memcmp(file_get_data(pin)+1, dhash, sizeof(dhash)) != 0) {
+        }
+        if (memcmp(file_get_data(pin) + 1, dhash, sizeof(dhash)) != 0) {
             int retries;
-            if ((retries = pin_wrong_retry(pin)) < CCID_OK)
+            if ((retries = pin_wrong_retry(pin)) < CCID_OK) {
                 return SW_PIN_BLOCKED();
-            return set_res_sw(0x63, 0xc0 | retries);
+            }
+            return set_res_sw(0x63, 0xc0 | (uint8_t)retries);
         }
     }
     int r = pin_reset_retries(pin, false);
-    if (r == CCID_ERR_BLOCKED)
+    if (r == CCID_ERR_BLOCKED) {
         return SW_PIN_BLOCKED();
-    if (r != CCID_OK)
+    }
+    if (r != CCID_OK) {
         return SW_MEMORY_FAILURE();
-    if (pka_enabled() == false)
+    }
+    if (pka_enabled() == false) {
         isUserAuthenticated = true;
+    }
     if (pin == file_pin1) {
         hash_multi(data, len, session_pin);
         has_session_pin = true;
@@ -361,18 +430,25 @@ int check_pin(const file_t *pin, const uint8_t *data, size_t len) {
         hash_multi(data, len, session_sopin);
         has_session_sopin = true;
     }
+    if (pending_save_dkek != 0xff) {
+        save_dkek_key(pending_save_dkek, NULL);
+        pending_save_dkek = 0xff;
+    }
     return SW_OK();
 }
 
-const uint8_t *get_meta_tag(file_t *ef, uint16_t meta_tag, size_t *tag_len) {
-    if (ef == NULL)
+const uint8_t *get_meta_tag(file_t *ef, uint16_t meta_tag, uint16_t *tag_len) {
+    if (ef == NULL) {
         return NULL;
+    }
     uint8_t *meta_data = NULL;
-    uint8_t meta_size = meta_find(ef->fid, &meta_data);
+    uint16_t meta_size = meta_find(ef->fid, &meta_data);
     if (meta_size > 0 && meta_data != NULL) {
         uint16_t tag = 0x0;
         uint8_t *tag_data = NULL, *p = NULL;
-        while (walk_tlv(meta_data, meta_size, &p, &tag, tag_len, &tag_data)) {
+        asn1_ctx_t ctxi;
+        asn1_ctx_init(meta_data, meta_size, &ctxi);
+        while (walk_tlv(&ctxi, &p, &tag, tag_len, &tag_data)) {
             if (tag == meta_tag) {
                 return tag_data;
             }
@@ -382,20 +458,22 @@ const uint8_t *get_meta_tag(file_t *ef, uint16_t meta_tag, size_t *tag_len) {
 }
 
 uint32_t get_key_counter(file_t *fkey) {
-    size_t tag_len = 0;
+    uint16_t tag_len = 0;
     const uint8_t *meta_tag = get_meta_tag(fkey, 0x90, &tag_len);
-    if (meta_tag)
+    if (meta_tag) {
         return (meta_tag[0] << 24) | (meta_tag[1] << 16) | (meta_tag[2] << 8) | meta_tag[3];
+    }
     return 0xffffffff;
 }
 
 bool key_has_purpose(file_t *ef, uint8_t purpose) {
-    size_t tag_len = 0;
+    uint16_t tag_len = 0;
     const uint8_t *meta_tag = get_meta_tag(ef, 0x91, &tag_len);
     if (meta_tag) {
-        for (int i = 0; i < tag_len; i++) {
-            if (meta_tag[i] == purpose)
+        for (unsigned i = 0; i < tag_len; i++) {
+            if (meta_tag[i] == purpose) {
                 return true;
+            }
         }
         return false;
     }
@@ -403,30 +481,35 @@ bool key_has_purpose(file_t *ef, uint8_t purpose) {
 }
 
 uint32_t decrement_key_counter(file_t *fkey) {
-    if (!fkey)
+    if (!fkey) {
         return 0xffffff;
+    }
     uint8_t *meta_data = NULL;
-    uint8_t meta_size = meta_find(fkey->fid, &meta_data);
+    uint16_t meta_size = meta_find(fkey->fid, &meta_data);
     if (meta_size > 0 && meta_data != NULL) {
         uint16_t tag = 0x0;
         uint8_t *tag_data = NULL, *p = NULL;
-        size_t tag_len = 0;
-        uint8_t *cmeta = (uint8_t *)calloc(1, meta_size);
+        uint16_t tag_len = 0;
+        uint8_t *cmeta = (uint8_t *) calloc(1, meta_size);
         /* We cannot modify meta_data, as it comes from flash memory. It must be cpied to an aux buffer */
         memcpy(cmeta, meta_data, meta_size);
-        while (walk_tlv(cmeta, meta_size, &p, &tag, &tag_len, &tag_data)) {
-            if (tag == 0x90) { //ofset tag
-                uint32_t val = (tag_data[0] << 24) | (tag_data[1] << 16) | (tag_data[2] << 8) | tag_data[3];
+        asn1_ctx_t ctxi;
+        asn1_ctx_init(meta_data, meta_size, &ctxi);
+        while (walk_tlv(&ctxi, &p, &tag, &tag_len, &tag_data)) {
+            if (tag == 0x90) { // ofset tag
+                uint32_t val =
+                    (tag_data[0] << 24) | (tag_data[1] << 16) | (tag_data[2] << 8) | tag_data[3];
                 val--;
                 tag_data[0] = (val >> 24) & 0xff;
                 tag_data[1] = (val >> 16) & 0xff;
                 tag_data[2] = (val >> 8) & 0xff;
                 tag_data[3] = val & 0xff;
 
-                int r = meta_add(fkey->fid, cmeta, meta_size);
+                int r = meta_add(fkey->fid, cmeta, (uint16_t)meta_size);
                 free(cmeta);
-                if (r != 0)
+                if (r != 0) {
                     return 0xffffffff;
+                }
                 low_flash_available();
                 return val;
             }
@@ -436,103 +519,125 @@ uint32_t decrement_key_counter(file_t *fkey) {
     return 0xffffffff;
 }
 
-//Stores the private and public keys in flash
+// Stores the private and public keys in flash
 int store_keys(void *key_ctx, int type, uint8_t key_id) {
-    int r, key_size = 0;
-    uint8_t kdata[4096/8]; //worst case
-    if (type == HSM_KEY_RSA) {
-        mbedtls_rsa_context *rsa = (mbedtls_rsa_context *)key_ctx;
-        key_size = mbedtls_mpi_size(&rsa->P)+mbedtls_mpi_size(&rsa->Q);
-        mbedtls_mpi_write_binary(&rsa->P, kdata, key_size/2);
-        mbedtls_mpi_write_binary(&rsa->Q, kdata+key_size/2, key_size/2);
+    int r = 0;
+    uint16_t key_size = 0;
+    uint8_t kdata[4096 / 8]; // worst case
+    if (type & PICO_KEYS_KEY_RSA) {
+        mbedtls_rsa_context *rsa = (mbedtls_rsa_context *) key_ctx;
+        key_size = (uint16_t)mbedtls_mpi_size(&rsa->P) + (uint16_t)mbedtls_mpi_size(&rsa->Q);
+        mbedtls_mpi_write_binary(&rsa->P, kdata, key_size / 2);
+        mbedtls_mpi_write_binary(&rsa->Q, kdata + key_size / 2, key_size / 2);
     }
-    else if (type == HSM_KEY_EC) {
-        mbedtls_ecdsa_context *ecdsa = (mbedtls_ecdsa_context *)key_ctx;
-        key_size = mbedtls_mpi_size(&ecdsa->d);
+    else if (type & PICO_KEYS_KEY_EC) {
+        mbedtls_ecdsa_context *ecdsa = (mbedtls_ecdsa_context *) key_ctx;
+        size_t olen = 0;
         kdata[0] = ecdsa->grp.id & 0xff;
-        mbedtls_mpi_write_binary(&ecdsa->d, kdata+1, key_size);
-        key_size++;
+        mbedtls_ecp_write_key_ext(ecdsa, &olen, kdata + 1, sizeof(kdata) - 1);
+        key_size = olen + 1;
     }
-    else if (type & HSM_KEY_AES) {
-        if (type == HSM_KEY_AES_128)
+    else if (type & PICO_KEYS_KEY_AES) {
+        if (type == PICO_KEYS_KEY_AES_128) {
             key_size = 16;
-        else if (type == HSM_KEY_AES_192)
+        }
+        else if (type == PICO_KEYS_KEY_AES_192) {
             key_size = 24;
-        else if (type == HSM_KEY_AES_256)
+        }
+        else if (type == PICO_KEYS_KEY_AES_256) {
             key_size = 32;
+        }
+        else if (type == PICO_KEYS_KEY_AES_512) {
+            key_size = 64;
+        }
         memcpy(kdata, key_ctx, key_size);
     }
-    else
+    else {
         return CCID_WRONG_DATA;
+    }
     file_t *fpk = file_new((KEY_PREFIX << 8) | key_id);
-    if (!fpk)
+    if (!fpk) {
         return CCID_ERR_MEMORY_FATAL;
+    }
     r = mkek_encrypt(kdata, key_size);
     if (r != CCID_OK) {
         return r;
     }
-    r = flash_write_data_to_file(fpk, kdata, key_size);
-    if (r != CCID_OK)
+    r = file_put_data(fpk, kdata, (uint16_t)key_size);
+    if (r != CCID_OK) {
         return r;
+    }
+    char key_id_str[4] = {0};
+    sprintf(key_id_str, "%u", key_id);
+    if (type & PICO_KEYS_KEY_EC) {
+        key_size--;
+    }
+    uint16_t prkd_len = asn1_build_prkd_generic(NULL, 0, (uint8_t *)key_id_str, (uint16_t)strlen(key_id_str), key_size * 8, type, kdata, sizeof(kdata));
+    if (prkd_len > 0) {
+        fpk = file_new((PRKD_PREFIX << 8) | key_id);
+        r = file_put_data(fpk, kdata, prkd_len);
+        if (r != 0) {
+            return SW_EXEC_ERROR();
+        }
+    }
     low_flash_available();
     return CCID_OK;
 }
 
 int find_and_store_meta_key(uint8_t key_id) {
-    size_t lt[4] = { 0,0,0,0 }, meta_size = 0;
-    uint8_t *pt[4] = { NULL,NULL,NULL,NULL };
+    uint16_t meta_size = 0;
     uint8_t t90[4] = { 0xFF, 0xFF, 0xFF, 0xFE };
-    for (int t = 0; t < 4; t++) {
-        uint8_t *ptt = NULL;
-        size_t ltt = 0;
-        if (asn1_find_tag(apdu.data, apdu.nc, 0x90+t, &ltt, &ptt) && ptt != NULL && ltt > 0) {
-            lt[t] = ltt;
-            pt[t] = ptt;
-            meta_size += asn1_len_tag(0x90+t, lt[t]);
+    asn1_ctx_t ctxi, ctxo[4] = { 0 };
+    asn1_ctx_init(apdu.data, (uint16_t)apdu.nc, &ctxi);
+    for (uint16_t t = 0; t < 4; t++) {
+        if (asn1_find_tag(&ctxi, 0x90 + t, &ctxo[t]) && asn1_len(&ctxo[t]) > 0) {
+            meta_size += asn1_len_tag(0x90 + t, ctxo[t].len);
         }
     }
-    if (lt[0] == 0 && pt[0] == NULL) {
+    if (asn1_len(&ctxo[0]) == 0) {
         uint16_t opts = get_device_options();
         if (opts & HSM_OPT_KEY_COUNTER_ALL) {
-            lt[0] = 4;
-            pt[0] = t90;
+            ctxo[0].len = 4;
+            ctxo[0].data = t90;
             meta_size += 6;
         }
     }
     if (meta_size) {
-        uint8_t *meta = (uint8_t *)calloc(1, meta_size), *m = meta;
-        for (int t = 0; t < 4; t++) {
-            if (lt[t] > 0 && pt[t] != NULL) {
-                *m++ = 0x90+t;
-                m += format_tlv_len(lt[t], m);
-                memcpy(m, pt[t], lt[t]);
-                m += lt[t];
+        uint8_t *meta = (uint8_t *) calloc(1, meta_size), *m = meta;
+        for (uint8_t t = 0; t < 4; t++) {
+            if (asn1_len(&ctxo[t]) > 0) {
+                *m++ = 0x90 + t;
+                m += format_tlv_len(ctxo[t].len, m);
+                memcpy(m, ctxo[t].data, ctxo[t].len);
+                m += ctxo[t].len;
             }
         }
-        int r = meta_add((KEY_PREFIX << 8) | key_id, meta, meta_size);
+        int r = meta_add((KEY_PREFIX << 8) | key_id, meta, (uint16_t)meta_size);
         free(meta);
-        if (r != 0)
+        if (r != 0) {
             return CCID_EXEC_ERROR;
+        }
     }
     return CCID_OK;
 }
 
 int load_private_key_rsa(mbedtls_rsa_context *ctx, file_t *fkey) {
-    if (wait_button_pressed() == true) //timeout
+    if (wait_button_pressed() == true) { // timeout
         return CCID_VERIFICATION_FAILED;
+    }
 
-    int key_size = file_get_size(fkey);
-    uint8_t kdata[4096/8];
+    uint16_t key_size = file_get_size(fkey);
+    uint8_t kdata[4096 / 8];
     memcpy(kdata, file_get_data(fkey), key_size);
     if (mkek_decrypt(kdata, key_size) != 0) {
         return CCID_EXEC_ERROR;
     }
-    if (mbedtls_mpi_read_binary(&ctx->P, kdata, key_size/2) != 0) {
+    if (mbedtls_mpi_read_binary(&ctx->P, kdata, key_size / 2) != 0) {
         mbedtls_platform_zeroize(kdata, sizeof(kdata));
         mbedtls_rsa_free(ctx);
         return CCID_WRONG_DATA;
     }
-    if (mbedtls_mpi_read_binary(&ctx->Q, kdata+key_size/2, key_size/2) != 0) {
+    if (mbedtls_mpi_read_binary(&ctx->Q, kdata + key_size / 2, key_size / 2) != 0) {
         mbedtls_platform_zeroize(kdata, sizeof(kdata));
         mbedtls_rsa_free(ctx);
         return CCID_WRONG_DATA;
@@ -560,32 +665,40 @@ int load_private_key_rsa(mbedtls_rsa_context *ctx, file_t *fkey) {
     return CCID_OK;
 }
 
-int load_private_key_ecdsa(mbedtls_ecdsa_context *ctx, file_t *fkey) {
-    if (wait_button_pressed() == true) //timeout
+int load_private_key_ec(mbedtls_ecp_keypair *ctx, file_t *fkey) {
+    if (wait_button_pressed() == true) { // timeout
         return CCID_VERIFICATION_FAILED;
+    }
 
-    int key_size = file_get_size(fkey);
-    uint8_t kdata[67]; //Worst case, 521 bit + 1byte
+    uint16_t key_size = file_get_size(fkey);
+    uint8_t kdata[67]; // Worst case, 521 bit + 1byte
     memcpy(kdata, file_get_data(fkey), key_size);
     if (mkek_decrypt(kdata, key_size) != 0) {
         return CCID_EXEC_ERROR;
     }
     mbedtls_ecp_group_id gid = kdata[0];
-    int r = mbedtls_ecp_read_key(gid, ctx, kdata+1, key_size-1);
+    int r = mbedtls_ecp_read_key(gid, ctx, kdata + 1, key_size - 1);
     if (r != 0) {
         mbedtls_platform_zeroize(kdata, sizeof(kdata));
-        mbedtls_ecdsa_free(ctx);
+        mbedtls_ecp_keypair_free(ctx);
         return CCID_EXEC_ERROR;
     }
     mbedtls_platform_zeroize(kdata, sizeof(kdata));
+    if (gid == MBEDTLS_ECP_DP_ED25519 || gid == MBEDTLS_ECP_DP_ED448) {
+        r = mbedtls_ecp_point_edwards(&ctx->grp, &ctx->Q, &ctx->d, random_gen, NULL);
+    }
+    else {
+        r = mbedtls_ecp_mul(&ctx->grp, &ctx->Q, &ctx->d, &ctx->grp.G, random_gen, NULL);
+    }
+    if (r != 0) {
+        mbedtls_ecp_keypair_free(ctx);
+        return CCID_EXEC_ERROR;
+    }
     return CCID_OK;
 }
-
-typedef struct cmd
-{
-  uint8_t ins;
-  int (*cmd_handler)();
-} cmd_t;
+int load_private_key_ecdh(mbedtls_ecp_keypair *ctx, file_t *fkey) {
+    return load_private_key_ec(ctx, fkey);
+}
 
 #define INS_VERIFY                  0x20
 #define INS_MSE                     0x22
@@ -594,6 +707,7 @@ typedef struct cmd
 #define INS_RESET_RETRY             0x2C
 #define INS_KEYPAIR_GEN             0x46
 #define INS_KEY_GEN                 0x48
+#define INS_BIP_SLIP                0x4A
 #define INS_INITIALIZE              0x50
 #define INS_KEY_DOMAIN              0x52
 #define INS_PUK_AUTH                0x54
@@ -609,8 +723,8 @@ typedef struct cmd
 #define INS_EXTERNAL_AUTHENTICATE   0x82
 #define INS_CHALLENGE               0x84
 #define INS_GENERAL_AUTHENTICATE    0x86
-#define INS_SELECT_FILE				0xA4
-#define INS_READ_BINARY				0xB0
+#define INS_SELECT_FILE             0xA4
+#define INS_READ_BINARY             0xB0
 #define INS_READ_BINARY_ODD         0xB1
 #define INS_UPDATE_EF               0xD7
 #define INS_DELETE_FILE             0xE4
@@ -643,16 +757,20 @@ static const cmd_t cmds[] = {
     { INS_PUK_AUTH, cmd_puk_auth },
     { INS_PSO, cmd_pso },
     { INS_EXTERNAL_AUTHENTICATE, cmd_external_authenticate },
-    { 0x00, 0x0}
+    { INS_BIP_SLIP, cmd_bip_slip },
+    { 0x00, 0x0 }
 };
 
 int sc_hsm_process_apdu() {
-    sm_unwrap();
+    int r = sm_unwrap();
+    if (r != CCID_OK) {
+        return SW_DATA_INVALID();
+    }
     for (const cmd_t *cmd = cmds; cmd->ins != 0x00; cmd++) {
         if (cmd->ins == INS(apdu)) {
-            int r = cmd->cmd_handler();
+            int res = cmd->cmd_handler();
             sm_wrap();
-            return r;
+            return res;
         }
     }
     return SW_INS_NOT_SUPPORTED();

src/hsm/sc_hsm.h

@@ -19,54 +19,63 @@
 #define _SC_HSM_H_
 
 #include <stdlib.h>
+#ifndef ESP_PLATFORM
 #include "common.h"
+#else
+#define MBEDTLS_ALLOW_PRIVATE_ACCESS
+#endif
 #include "mbedtls/rsa.h"
 #include "mbedtls/ecdsa.h"
+#if !defined(ENABLE_EMULATION) && !defined(ESP_PLATFORM)
 #include "pico/stdlib.h"
+#endif
 #include "file.h"
 #include "apdu.h"
-#include "hsm.h"
+#include "pico_keys.h"
 
 extern const uint8_t sc_hsm_aid[];
 
-#define ALGO_RSA_RAW			0x20		/* RSA signature with external padding */
-#define ALGO_RSA_DECRYPT		0x21		/* RSA raw decrypt */
+#define ALGO_RSA_RAW            0x20        /* RSA signature with external padding */
+#define ALGO_RSA_DECRYPT        0x21        /* RSA raw decrypt */
 #define ALGO_RSA_DECRYPT_PKCS1  0x22
 #define ALGO_RSA_DECRYPT_OEP    0x23
-#define ALGO_RSA_PKCS1			0x30		/* RSA signature with DigestInfo input and PKCS#1 V1.5 padding */
-#define ALGO_RSA_PKCS1_SHA1		0x31		/* RSA signature with SHA-1 hash and PKCS#1 V1.5 padding */
+#define ALGO_RSA_PKCS1          0x30        /* RSA signature with DigestInfo input and PKCS#1 V1.5 padding */
+#define ALGO_RSA_PKCS1_SHA1     0x31        /* RSA signature with SHA-1 hash and PKCS#1 V1.5 padding */
 #define ALGO_RSA_PKCS1_SHA224   0x32
-#define ALGO_RSA_PKCS1_SHA256	0x33		/* RSA signature with SHA-256 hash and PKCS#1 V1.5 padding */
+#define ALGO_RSA_PKCS1_SHA256   0x33        /* RSA signature with SHA-256 hash and PKCS#1 V1.5 padding */
 #define ALGO_RSA_PKCS1_SHA384   0x34
 #define ALGO_RSA_PKCS1_SHA512   0x35
 
-#define ALGO_RSA_PSS			0x40		/* RSA signature with external hash and PKCS#1 PSS padding*/
-#define ALGO_RSA_PSS_SHA1		0x41		/* RSA signature with SHA-1 hash and PKCS#1 PSS padding */
+#define ALGO_RSA_PSS            0x40        /* RSA signature with external hash and PKCS#1 PSS padding*/
+#define ALGO_RSA_PSS_SHA1       0x41        /* RSA signature with SHA-1 hash and PKCS#1 PSS padding */
 #define ALGO_RSA_PSS_SHA224     0x42
-#define ALGO_RSA_PSS_SHA256		0x43		/* RSA signature with SHA-256 hash and PKCS#1 PSS padding */
+#define ALGO_RSA_PSS_SHA256     0x43        /* RSA signature with SHA-256 hash and PKCS#1 PSS padding */
 #define ALGO_RSA_PSS_SHA384     0x44
 #define ALGO_RSA_PSS_SHA512     0x45
 
-#define ALGO_EC_RAW				0x70		/* ECDSA signature with hash input */
-#define ALGO_EC_SHA1			0x71		/* ECDSA signature with SHA-1 hash */
-#define ALGO_EC_SHA224			0x72		/* ECDSA signature with SHA-224 hash */
-#define ALGO_EC_SHA256			0x73		/* ECDSA signature with SHA-256 hash */
+#define ALGO_EC_RAW             0x70        /* ECDSA signature with hash input */
+#define ALGO_EC_SHA1            0x71        /* ECDSA signature with SHA-1 hash */
+#define ALGO_EC_SHA224          0x72        /* ECDSA signature with SHA-224 hash */
+#define ALGO_EC_SHA256          0x73        /* ECDSA signature with SHA-256 hash */
 #define ALGO_EC_SHA384          0x74
 #define ALGO_EC_SHA512          0x75
-#define ALGO_EC_DH				0x80        /* ECDH key derivation */
+#define ALGO_EC_DH              0x80        /* ECDH key derivation */
 #define ALGO_EC_DH_AUTPUK       0x83
 #define ALGO_EC_DH_XKEK         0x84
+#define ALGO_HD                 0xA0
 
 #define ALGO_WRAP               0x92
 #define ALGO_UNWRAP             0x93
 #define ALGO_REPLACE            0x94
 
-#define ALGO_EC_DERIVE		    0x98		/* Derive EC key from EC key */
+#define ALGO_EC_DERIVE          0x98        /* Derive EC key from EC key */
 
-#define ALGO_AES_CBC_ENCRYPT	0x10
-#define ALGO_AES_CBC_DECRYPT	0x11
-#define ALGO_AES_CMAC		    0x18
-#define ALGO_AES_DERIVE		    0x99
+#define ALGO_AES_CBC_ENCRYPT    0x10
+#define ALGO_AES_CBC_DECRYPT    0x11
+#define ALGO_AES_CMAC           0x18
+#define ALGO_EXT_CIPHER_ENCRYPT 0x51        /* Extended ciphering Encrypt */
+#define ALGO_EXT_CIPHER_DECRYPT 0x52        /* Extended ciphering Decrypt */
+#define ALGO_AES_DERIVE         0x99
 
 #define HSM_OPT_RRC                 0x0001
 #define HSM_OPT_TRANSPORT_PIN       0x0002
@@ -77,15 +86,16 @@ extern const uint8_t sc_hsm_aid[];
 #define HSM_OPT_RRC_RESET_ONLY      0x0020
 #define HSM_OPT_BOOTSEL_BUTTON      0x0100
 #define HSM_OPT_KEY_COUNTER_ALL     0x0200
+#define HSM_OPT_SECURE_LOCK         0x0400
 
-#define PRKD_PREFIX				0xC4		/* Hi byte in file identifier for PKCS#15 PRKD objects */
-#define CD_PREFIX				0xC8		/* Hi byte in file identifier for PKCS#15 CD objects */
-#define DCOD_PREFIX				0xC9		/* Hi byte in file identifier for PKCS#15 DCOD objects */
-#define CA_CERTIFICATE_PREFIX	0xCA		/* Hi byte in file identifier for CA certificates */
-#define KEY_PREFIX				0xCC		/* Hi byte in file identifier for key objects */
-#define PROT_DATA_PREFIX		0xCD		/* Hi byte in file identifier for PIN protected data objects */
-#define EE_CERTIFICATE_PREFIX	0xCE		/* Hi byte in file identifier for EE certificates */
-#define DATA_PREFIX				0xCF		/* Hi byte in file identifier for readable data objects */
+#define PRKD_PREFIX             0xC4        /* Hi byte in file identifier for PKCS#15 PRKD objects */
+#define CD_PREFIX               0xC8        /* Hi byte in file identifier for PKCS#15 CD objects */
+#define DCOD_PREFIX             0xC9        /* Hi byte in file identifier for PKCS#15 DCOD objects */
+#define CA_CERTIFICATE_PREFIX   0xCA        /* Hi byte in file identifier for CA certificates */
+#define KEY_PREFIX              0xCC        /* Hi byte in file identifier for key objects */
+#define PROT_DATA_PREFIX        0xCD        /* Hi byte in file identifier for PIN protected data objects */
+#define EE_CERTIFICATE_PREFIX   0xCE        /* Hi byte in file identifier for EE certificates */
+#define DATA_PREFIX             0xCF        /* Hi byte in file identifier for readable data objects */
 
 #define P15_KEYTYPE_RSA     0x30
 #define P15_KEYTYPE_ECC     0xA0
@@ -96,27 +106,26 @@ extern const uint8_t sc_hsm_aid[];
 extern int pin_reset_retries(const file_t *pin, bool);
 extern int pin_wrong_retry(const file_t *pin);
 
-extern void hash(const uint8_t *input, size_t len, uint8_t output[32]);
-extern void hash_multi(const uint8_t *input, size_t len, uint8_t output[32]);
-extern void double_hash_pin(const uint8_t *pin, size_t len, uint8_t output[32]);
+extern void hash(const uint8_t *input, uint16_t len, uint8_t output[32]);
 extern uint16_t get_device_options();
 extern bool has_session_pin, has_session_sopin;
 extern uint8_t session_pin[32], session_sopin[32];
-extern int check_pin(const file_t *pin, const uint8_t *data, size_t len);
+extern uint16_t check_pin(const file_t *pin, const uint8_t *data, uint16_t len);
 extern bool pka_enabled();
 extern const uint8_t *dev_name;
-extern size_t dev_name_len;
+extern uint16_t dev_name_len;
 extern uint8_t puk_status[MAX_PUK];
 extern int puk_store_select_chr(const uint8_t *chr);
 extern int delete_file(file_t *ef);
-extern const uint8_t *get_meta_tag(file_t *ef, uint16_t meta_tag, size_t *tag_len);
+extern const uint8_t *get_meta_tag(file_t *ef, uint16_t meta_tag, uint16_t *tag_len);
 extern bool key_has_purpose(file_t *ef, uint8_t purpose);
 extern int load_private_key_rsa(mbedtls_rsa_context *ctx, file_t *fkey);
-extern int load_private_key_ecdsa(mbedtls_ecdsa_context *ctx, file_t *fkey);
+extern int load_private_key_ec(mbedtls_ecp_keypair *ctx, file_t *fkey);
+extern int load_private_key_ecdh(mbedtls_ecp_keypair *ctx, file_t *fkey);
 extern bool wait_button_pressed();
 extern int store_keys(void *key_ctx, int type, uint8_t key_id);
 extern int find_and_store_meta_key(uint8_t key_id);
 extern uint32_t get_key_counter(file_t *fkey);
 extern uint32_t decrement_key_counter(file_t *fkey);
 
-#endif
+#endif

src/hsm/version.h

@@ -18,10 +18,9 @@
 #ifndef __VERSION_H_
 #define __VERSION_H_
 
-#define HSM_VERSION 0x0300
+#define HSM_VERSION 0x0400
 
 #define HSM_VERSION_MAJOR ((HSM_VERSION >> 8) & 0xff)
 #define HSM_VERSION_MINOR (HSM_VERSION & 0xff)
 
 #endif
-

tests/build-in-docker.sh

@@ -0,0 +1,14 @@
+#!/bin/bash -eu
+
+source tests/docker_env.sh
+build_image
+#run_in_docker rm -rf CMakeFiles
+run_in_docker mkdir -p build_in_docker
+run_in_docker -w "$PWD/build_in_docker" cmake -DENABLE_EMULATION=1 -D__FOR_CI=1 ..
+run_in_docker -w "$PWD/build_in_docker" make -j ${NUM_PROC}
+docker create --name temp_container pico-hsm-test:bullseye
+docker cp $PWD/build_in_docker/pico_hsm temp_container:/pico_hsm
+docker commit temp_container pico-hsm-test:bullseye
+docker stop temp_container
+docker rm temp_container
+docker image prune -f

tests/conftest.py

@@ -0,0 +1,33 @@
+"""
+/*
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2022 Pol Henarejos.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+"""
+
+import sys
+import pytest
+
+try:
+    from picohsm import PicoHSM
+except ModuleNotFoundError:
+    print('ERROR: picohsm module not found! Install picohsm package.\nTry with `pip install pypicohsm`')
+    sys.exit(-1)
+
+
+@pytest.fixture(scope="session")
+def device():
+    dev = PicoHSM()
+    return dev

tests/const.py

@@ -0,0 +1,25 @@
+"""
+/*
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2022 Pol Henarejos.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+"""
+
+from binascii import unhexlify
+
+DEFAULT_DKEK = [0x1] * 32
+
+TERM_CERT = unhexlify('7F2181E57F4E819E5F290100421045535049434F48534D445630303030317F494F060A04007F00070202020203864104F571E53AA8E75C929D925081CF0F893CB5991D48BD546C1A3F22199F037E4B12D601ACD91C67C88D3C5B3D04C08EC0A372485F7A248E080EE0C6237C1B075E1C5F201045535049434F48534D54525A474E50327F4C0E060904007F0007030102025301005F25060203000300055F24060204000300045F374041BF5E970739135770DBCC5DDA81FFD8B13419A9257D44CAF8404267C644E8F435B43F5E57EB2A8CF4B198045ACD094E0CB34E6217D9C8922CFB9BBEFD4088AD')
+DICA_CERT = unhexlify('7F2181E97F4E81A25F290100421045535049434F48534D434130303030317F494F060A04007F0007020202020386410421EE4A21C16A10F737F12E78E5091B266612038CDABEBB722B15BF6D41B877FBF64D9AB69C39B9831B1AE00BEF2A4E81976F7688D45189BB232A24703D8A96A55F201045535049434F48534D445630303030317F4C12060904007F000703010202530580000000005F25060202000801085F24060203000601045F37403F75C08FFFC9186B56E6147199E82BFC327CEEF72495BC567961CD54D702F13E3C2766FCD1D11BD6A9D1F4A229B76B248CEB9AF88D59A74D0AB149448705159B')

tests/docker/bullseye/Dockerfile

@@ -0,0 +1,49 @@
+FROM debian:bullseye
+
+ARG DEBIAN_FRONTEND=noninteractive
+
+RUN apt update && apt upgrade -y
+RUN apt install -y apt-utils
+RUN apt autoremove -y
+RUN rm -rf /var/cache/apt/archives/*
+RUN apt install -y libccid \
+    libpcsclite-dev \
+    git \
+    autoconf \
+    pkg-config \
+    libtool \
+    help2man \
+    automake \
+    gcc \
+    make \
+    build-essential \
+    python3 \
+    python3-pip \
+    swig \
+    libssl-dev \
+    cmake \
+    vsmartcard-vpcd \
+    && rm -rf /var/lib/apt/lists/*
+RUN pip3 install pytest pycvc cryptography pyscard base58
+WORKDIR /
+RUN git clone https://github.com/OpenSC/OpenSC
+WORKDIR /OpenSC
+RUN git checkout tags/0.25.1
+RUN ./bootstrap
+RUN ./configure --enable-openssl
+RUN make -j `nproc`
+RUN make install
+RUN make clean
+RUN ldconfig
+WORKDIR /
+RUN git clone https://github.com/polhenarejos/pypicohsm.git
+RUN pip3 install -e pypicohsm
+RUN git clone https://github.com/CardContact/sc-hsm-embedded
+WORKDIR /sc-hsm-embedded
+RUN autoreconf -fi
+RUN ./configure
+RUN make -j `nproc`
+RUN make install
+RUN cp ./src/tests/sc-hsm-pkcs11-test /usr/local/bin/sc-hsm-pkcs11-test
+RUN make clean
+WORKDIR /

tests/docker/jammy/Dockerfile

@@ -0,0 +1,30 @@
+FROM ubuntu:jammy
+
+ARG DEBIAN_FRONTEND=noninteractive
+
+RUN apt update && apt upgrade -y
+RUN apt install -y apt-utils
+RUN apt install -y libccid \
+    libpcsclite-dev \
+    git \
+    autoconf \
+    pkg-config \
+    libtool \
+    help2man \
+    automake \
+    gcc \
+    make \
+    build-essential \
+    opensc \
+    python3 \
+    python3-pip \
+    swig \
+    cmake \
+    && rm -rf /var/lib/apt/lists/*
+RUN pip3 install pytest pycvc cryptography pyscard
+RUN git clone https://github.com/polhenarejos/vsmartcard.git
+WORKDIR /vsmartcard/virtualsmartcard
+RUN autoreconf --verbose --install
+RUN ./configure --sysconfdir=/etc
+RUN make && make install
+WORKDIR /

tests/docker_env.sh

@@ -0,0 +1,108 @@
+#!/bin/bash -eu
+
+# Taken from Mbed-TLS project
+# https://github.com/Mbed-TLS/mbedtls/blob/master/tests/scripts/docker_env.sh
+#
+# docker_env.sh
+#
+# Purpose
+# -------
+#
+# This is a helper script to enable running tests under a Docker container,
+# thus making it easier to get set up as well as isolating test dependencies
+# (which include legacy/insecure configurations of openssl and gnutls).
+#
+# WARNING: the Dockerfile used by this script is no longer maintained! See
+# https://github.com/Mbed-TLS/mbedtls-test/blob/master/README.md#quick-start
+# for the set of Docker images we use on the CI.
+#
+# Notes for users
+# ---------------
+# This script expects a Linux x86_64 system with a recent version of Docker
+# installed and available for use, as well as http/https access. If a proxy
+# server must be used, invoke this script with the usual environment variables
+# (http_proxy and https_proxy) set appropriately. If an alternate Docker
+# registry is needed, specify MBEDTLS_DOCKER_REGISTRY to point at the
+# host name.
+#
+#
+# Running this script directly will check for Docker availability and set up
+# the Docker image.
+
+# Copyright The Mbed TLS Contributors
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+# default values, can be overridden by the environment
+: ${MBEDTLS_DOCKER_GUEST:=bullseye}
+
+
+DOCKER_IMAGE_TAG="pico-hsm-test:${MBEDTLS_DOCKER_GUEST}"
+
+# Make sure docker is available
+if ! which docker > /dev/null; then
+    echo "Docker is required but doesn't seem to be installed. See https://www.docker.com/ to get started"
+    exit 1
+fi
+
+# Figure out if we need to 'sudo docker'
+if groups | grep docker > /dev/null; then
+    DOCKER="docker"
+else
+    echo "Using sudo to invoke docker since you're not a member of the docker group..."
+    DOCKER="docker"
+fi
+
+# Figure out the number of processors available
+if [ "$(uname)" == "Darwin" ]; then
+    NUM_PROC="$(sysctl -n hw.logicalcpu)"
+else
+    NUM_PROC="$(nproc)"
+fi
+
+build_image() {
+    # Build the Docker image
+    echo "Getting docker image up to date (this may take a few minutes)..."
+    ${DOCKER} image build \
+        -t ${DOCKER_IMAGE_TAG} \
+        --cache-from=${DOCKER_IMAGE_TAG} \
+        --network host \
+        --build-arg MAKEFLAGS_PARALLEL="-j ${NUM_PROC}" \
+        tests/docker/${MBEDTLS_DOCKER_GUEST}
+}
+
+run_in_docker()
+{
+    ENV_ARGS=""
+    while [ "$1" == "-e" ]; do
+        ENV_ARGS="${ENV_ARGS} $1 $2"
+        shift 2
+    done
+
+    WORKDIR="${PWD}"
+    if [ "$1" == '-w' ]; then
+        WORKDIR="$2"
+        shift 2
+    fi
+
+    ${DOCKER} container run --rm \
+        --cap-add SYS_PTRACE \
+        --volume $PWD:$PWD \
+        --workdir ${WORKDIR} \
+        -e MAKEFLAGS \
+        ${ENV_ARGS} \
+        ${DOCKER_IMAGE_TAG} \
+        $@
+}

tests/pico-hsm/test_000_info.py

@@ -0,0 +1,37 @@
+"""
+/*
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2022 Pol Henarejos.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+"""
+
+import pytest
+
+def test_select(device):
+    device.select_applet()
+
+def test_initialization(device):
+    device.initialize()
+
+def test_termca(device):
+    data = device.get_termca()
+    assert(b'ESPICOHSMTR' == data['cv']['chr'][:11])
+    assert(b'ESPICOHSMDV' == data['cv']['car'][:11] or b'ESPICOHSMTR' == data['cv']['car'][:11])
+    assert(b'ESPICOHSMDV' == data['dv']['chr'][:11] or b'ESPICOHSMTR' == data['dv']['chr'][:11])
+    assert(b'ESPICOHSMCA' == data['dv']['car'][:11] or b'ESPICOHSMTR' == data['dv']['car'][:11])
+    assert(data['cv']['car'] == data['dv']['chr'])
+
+def test_get_version(device):
+    version = device.get_version()

tests/pico-hsm/test_003_challenge.py

@@ -0,0 +1,57 @@
+"""
+/*
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2022 Pol Henarejos.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+"""
+
+import pytest
+import math
+from collections import Counter
+
+def mean(x):
+    sum = 0
+    for i in x:
+        sum += i
+    return sum/len(x)
+
+def var(x):
+    sum = 0
+    m = mean(x)
+    for i in x:
+        sum += (i-m)**2
+    return sum/len(x)
+
+@pytest.mark.parametrize(
+    "length", [1, 256, 1024]
+)
+def test_challenge(device, length):
+    data = device.get_challenge(length)
+    assert(len(data) == length)
+
+def test_randomness(device):
+    data = []
+    N = 1000
+    for k2 in range(N):
+        data += device.get_challenge(1024)
+
+    _, values = zip(*Counter(data).items())
+
+    nm = mean(values)/(N*1024/256)
+    sm = math.sqrt(var(values))/mean(values)
+
+    assert(0.99 <= nm <= 1.01)
+    assert(sm <= 0.02)
+

tests/pico-hsm/test_004_key_domains.py

@@ -0,0 +1,115 @@
+"""
+/*
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2022 Pol Henarejos.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+"""
+
+import pytest
+import hashlib
+from const import DEFAULT_DKEK
+from picohsm import APDUResponse, SWCodes
+from picohsm.const import DEFAULT_DKEK_SHARES
+
+KEY_DOMAINS = 3
+TEST_KEY_DOMAIN = 1
+
+def test_key_domains(device):
+    device.initialize(key_domains=KEY_DOMAINS)
+    for k in range(KEY_DOMAINS):
+        kd = device.get_key_domain(key_domain=k)
+        assert('error' in kd)
+        assert(kd['error'] == 0x6A88)
+
+    kd = device.get_key_domain(key_domain=KEY_DOMAINS)
+    assert('error' in kd)
+    assert(kd['error'] == 0x6A86)
+    assert(device.get_key_domains() == KEY_DOMAINS)
+
+def test_import_dkek_wrong_key_domain(device):
+    with pytest.raises(APDUResponse) as e:
+        device.import_dkek(DEFAULT_DKEK, key_domain=0)
+    assert(e.value.sw == SWCodes.SW_COMMAND_NOT_ALLOWED)
+
+def test_import_dkek_fail(device):
+    with pytest.raises(APDUResponse) as e:
+        device.import_dkek(DEFAULT_DKEK, key_domain=TEST_KEY_DOMAIN)
+    assert(e.value.sw == SWCodes.SW_COMMAND_NOT_ALLOWED)
+
+def test_set_key_domain_fail(device):
+    with pytest.raises(APDUResponse) as e:
+        device.set_key_domain(key_domain=10)
+    assert(e.value.sw == SWCodes.SW_INCORRECT_P1P2)
+
+def test_set_key_domain_ok(device):
+    kd = device.get_key_domain(key_domain=TEST_KEY_DOMAIN)
+    assert('error' in kd)
+    assert(kd['error'] == 0x6A88)
+
+    device.set_key_domain(key_domain=TEST_KEY_DOMAIN)
+    kd = device.get_key_domain(key_domain=TEST_KEY_DOMAIN)
+    assert('error' not in kd)
+    assert('dkek' in kd)
+    assert('total' in kd['dkek'])
+    assert(kd['dkek']['total'] == DEFAULT_DKEK_SHARES)
+    assert('missing' in kd['dkek'])
+    assert(kd['dkek']['missing'] == DEFAULT_DKEK_SHARES)
+
+def test_import_dkek_ok(device):
+    resp = device.import_dkek(DEFAULT_DKEK, key_domain=TEST_KEY_DOMAIN)
+    assert('dkek' in resp)
+    assert('kcv' in resp)
+    assert(resp['dkek']['total'] == DEFAULT_DKEK_SHARES)
+    assert(resp['dkek']['missing'] == DEFAULT_DKEK_SHARES-1)
+
+    resp = device.import_dkek(DEFAULT_DKEK, key_domain=TEST_KEY_DOMAIN)
+    assert('dkek' in resp)
+    assert('kcv' in resp)
+    assert(resp['dkek']['total'] == DEFAULT_DKEK_SHARES)
+    assert(resp['dkek']['missing'] == DEFAULT_DKEK_SHARES-2)
+
+    kcv = hashlib.sha256(b'\x00'*32).digest()[:8]
+    assert(resp['kcv'] == kcv)
+
+def test_clear_key_domain(device):
+    kd = device.get_key_domain(key_domain=0)
+    assert('error' in kd)
+    assert(kd['error'] == SWCodes.SW_REFERENCE_NOT_FOUND)
+
+    kd = device.get_key_domain(key_domain=TEST_KEY_DOMAIN)
+    assert(kd['dkek']['total'] == DEFAULT_DKEK_SHARES)
+
+    device.clear_key_domain(key_domain=TEST_KEY_DOMAIN)
+    kd = device.get_key_domain(key_domain=TEST_KEY_DOMAIN)
+    assert(kd['dkek']['missing'] == DEFAULT_DKEK_SHARES)
+
+def test_delete_key_domain(device):
+    assert(device.get_key_domains() == KEY_DOMAINS)
+    kd = device.get_key_domain(key_domain=TEST_KEY_DOMAIN)
+    assert(kd['dkek']['total'] == DEFAULT_DKEK_SHARES)
+    with pytest.raises(APDUResponse) as e:
+        device.delete_key_domain(key_domain=0)
+    assert(e.value.sw == SWCodes.SW_INCORRECT_P1P2)
+
+def test_delete_key_domain(device):
+    assert(device.get_key_domains() == KEY_DOMAINS)
+    kd = device.get_key_domain(key_domain=TEST_KEY_DOMAIN)
+    assert(kd['dkek']['total'] == DEFAULT_DKEK_SHARES)
+
+    device.delete_key_domain(key_domain=TEST_KEY_DOMAIN)
+    assert(device.get_key_domains() == KEY_DOMAINS)
+    kd = device.get_key_domain(key_domain=TEST_KEY_DOMAIN)
+    assert('error' in kd)
+    assert(kd['error'] == 0x6A88)

tests/pico-hsm/test_005_dkek.py

@@ -0,0 +1,42 @@
+"""
+/*
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2022 Pol Henarejos.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+"""
+
+import pytest
+import hashlib
+from picohsm.const import DEFAULT_DKEK_SHARES, DEFAULT_PIN, DEFAULT_RETRIES
+from const import  DEFAULT_DKEK
+
+def test_dkek(device):
+    device.initialize(retries=DEFAULT_RETRIES, dkek_shares=DEFAULT_DKEK_SHARES)
+    device.login(DEFAULT_PIN)
+    resp = device.import_dkek(DEFAULT_DKEK)
+    assert('dkek' in resp)
+    assert('kcv' in resp)
+    assert(resp['dkek']['total'] == DEFAULT_DKEK_SHARES)
+    assert(resp['dkek']['missing'] == DEFAULT_DKEK_SHARES-1)
+
+    resp = device.import_dkek(DEFAULT_DKEK)
+    assert('dkek' in resp)
+    assert('kcv' in resp)
+    assert(resp['dkek']['total'] == DEFAULT_DKEK_SHARES)
+    assert(resp['dkek']['missing'] == DEFAULT_DKEK_SHARES-2)
+
+    kcv = hashlib.sha256(b'\x00'*32).digest()[:8]
+    assert(resp['kcv'] == kcv)
+

tests/pico-hsm/test_010_pin.py

@@ -0,0 +1,52 @@
+"""
+/*
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2022 Pol Henarejos.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+"""
+
+import pytest
+from picohsm import APDUResponse, SWCodes
+from picohsm.const import DEFAULT_PIN, DEFAULT_RETRIES
+
+WRONG_PIN = '112233'
+
+def test_pin_init_retries(device):
+    device.initialize(retries=DEFAULT_RETRIES)
+    retries = device.get_login_retries()
+    assert(retries == DEFAULT_RETRIES)
+
+def test_pin_login(device):
+    device.initialize(retries=DEFAULT_RETRIES)
+    device.login(DEFAULT_PIN)
+
+def test_pin_retries(device):
+    device.initialize(retries=DEFAULT_RETRIES)
+    device.login(DEFAULT_PIN)
+
+    for ret in range(DEFAULT_RETRIES-1):
+        with pytest.raises(APDUResponse) as e:
+            device.login(WRONG_PIN)
+        assert(e.value.sw1 == 0x63 and e.value.sw2 == (0xC0 | (DEFAULT_RETRIES-1-ret)))
+
+    with pytest.raises(APDUResponse) as e:
+        device.login(WRONG_PIN)
+    assert(e.value.sw == SWCodes.SW_PIN_BLOCKED)
+
+    device.initialize(retries=DEFAULT_RETRIES)
+    retries = device.get_login_retries()
+    assert(retries == DEFAULT_RETRIES)
+
+

tests/pico-hsm/test_020_keypair_gen.py

@@ -0,0 +1,47 @@
+"""
+/*
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2022 Pol Henarejos.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+"""
+
+import pytest
+from picohsm import KeyType, DOPrefixes
+
+def test_gen_initialize(device):
+    device.initialize()
+
+@pytest.mark.parametrize(
+    "curve", ['secp192r1', 'secp256r1', 'secp384r1', 'secp521r1', 'brainpoolP256r1', 'brainpoolP384r1', 'brainpoolP512r1', 'secp192k1', 'secp256k1', 'curve25519', 'curve448', 'ed25519', 'ed448']
+)
+def test_gen_ecc(device, curve):
+    keyid = device.key_generation(KeyType.ECC, curve)
+    resp = device.list_keys()
+    assert((DOPrefixes.KEY_PREFIX, keyid) in resp)
+    device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+    device.delete_file(DOPrefixes.EE_CERTIFICATE_PREFIX, keyid)
+    resp = device.list_keys()
+    assert((DOPrefixes.KEY_PREFIX, keyid) not in resp)
+
+@pytest.mark.parametrize(
+    "modulus", [1024, 2048, 4096]
+)
+def test_gen_rsa(device, modulus):
+    keyid = device.key_generation(KeyType.RSA, modulus)
+    resp = device.list_keys()
+    assert((DOPrefixes.KEY_PREFIX, keyid) in resp)
+    device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+    device.delete_file(DOPrefixes.EE_CERTIFICATE_PREFIX, keyid)
+

tests/pico-hsm/test_021_key_import.py

@@ -0,0 +1,89 @@
+"""
+/*
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2022 Pol Henarejos.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+"""
+
+import pytest
+import hashlib
+import os
+from picohsm import DOPrefixes
+from cryptography.hazmat.primitives.asymmetric import rsa, ec, x25519, x448, ed25519, ed448
+from cryptography.hazmat.primitives.serialization import Encoding, PublicFormat
+from picohsm.const import DEFAULT_RETRIES, DEFAULT_DKEK_SHARES
+from const import DEFAULT_DKEK
+
+def test_prepare_dkek(device):
+    device.initialize(retries=DEFAULT_RETRIES, dkek_shares=DEFAULT_DKEK_SHARES)
+    resp = device.import_dkek(DEFAULT_DKEK)
+    resp = device.import_dkek(DEFAULT_DKEK)
+    kcv = hashlib.sha256(b'\x00'*32).digest()[:8]
+    assert(resp['kcv'] == kcv)
+
+@pytest.mark.parametrize(
+    "modulus", [1024, 2048, 4096]
+)
+def test_import_rsa(device, modulus):
+    pkey = rsa.generate_private_key(
+        public_exponent=65537,
+        key_size=modulus,
+    )
+    keyid = device.import_key(pkey)
+    pubkey = device.public_key(keyid)
+    assert(pubkey.public_numbers() == pkey.public_key().public_numbers())
+    device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+    device.delete_file(DOPrefixes.EE_CERTIFICATE_PREFIX, keyid)
+
+
+@pytest.mark.parametrize(
+    "curve", [ec.SECP192R1, ec.SECP256R1, ec.SECP384R1, ec.SECP521R1, ec.SECP256K1, ec.BrainpoolP256R1, ec.BrainpoolP384R1, ec.BrainpoolP512R1]
+)
+def test_import_ecc(device, curve):
+    pkey = ec.generate_private_key(curve())
+    keyid = device.import_key(pkey)
+    pubkey = device.public_key(keyid, param=curve().name)
+    assert(pubkey.public_numbers() == pkey.public_key().public_numbers())
+    device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+    device.delete_file(DOPrefixes.EE_CERTIFICATE_PREFIX, keyid)
+
+@pytest.mark.parametrize(
+    "curve", [x25519.X25519PrivateKey, x448.X448PrivateKey]
+)
+def test_import_montgomery(device, curve):
+    pkey = curve.generate()
+    keyid = device.import_key(pkey)
+    pubkey = device.public_key(keyid, param=curve)
+    assert(pubkey.public_bytes(Encoding.Raw, PublicFormat.Raw) == pkey.public_key().public_bytes(Encoding.Raw, PublicFormat.Raw))
+    device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+    device.delete_file(DOPrefixes.EE_CERTIFICATE_PREFIX, keyid)
+
+@pytest.mark.parametrize(
+    "curve", [ed25519.Ed25519PrivateKey, ed448.Ed448PrivateKey]
+)
+def test_import_edwards(device, curve):
+    pkey = curve.generate()
+    keyid = device.import_key(pkey)
+    pubkey = device.public_key(keyid, param=curve)
+    assert(pubkey.public_bytes(Encoding.Raw, PublicFormat.Raw) == pkey.public_key().public_bytes(Encoding.Raw, PublicFormat.Raw))
+    device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+    device.delete_file(DOPrefixes.EE_CERTIFICATE_PREFIX, keyid)
+
+@pytest.mark.parametrize(
+    "size", [128, 192, 256]
+)
+def test_import_aes(device, size):
+    pkey = os.urandom(size // 8)
+    keyid = device.import_key(pkey)

tests/pico-hsm/test_022_key_exchange.py

@@ -0,0 +1,74 @@
+"""
+/*
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2022 Pol Henarejos.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+"""
+
+import pytest
+import hashlib
+from picohsm import DOPrefixes
+from cryptography.hazmat.primitives.asymmetric import ec, x25519, x448
+from picohsm.const import DEFAULT_RETRIES, DEFAULT_DKEK_SHARES
+from const import DEFAULT_DKEK
+
+def test_prepare_dkek(device):
+    device.initialize(retries=DEFAULT_RETRIES, dkek_shares=DEFAULT_DKEK_SHARES)
+    resp = device.import_dkek(DEFAULT_DKEK)
+    resp = device.import_dkek(DEFAULT_DKEK)
+    kcv = hashlib.sha256(b'\x00'*32).digest()[:8]
+    assert(resp['kcv'] == kcv)
+
+@pytest.mark.parametrize(
+    "curve", [ec.SECP192R1, ec.SECP256R1, ec.SECP384R1, ec.SECP521R1, ec.SECP256K1, ec.BrainpoolP256R1, ec.BrainpoolP384R1, ec.BrainpoolP512R1]
+)
+def test_exchange_ecc(device, curve):
+    pkeyA = ec.generate_private_key(curve())
+    pbkeyA = pkeyA.public_key()
+    keyid = device.import_key(pkeyA)
+    pkeyB = ec.generate_private_key(curve())
+    pbkeyB = pkeyB.public_key()
+
+    sharedB = pkeyB.exchange(ec.ECDH(), pbkeyA)
+    sharedA = device.exchange(keyid, pbkeyB)
+
+    assert(sharedA == sharedB)
+
+    sharedAA = pkeyA.exchange(ec.ECDH(), pbkeyB)
+    assert(sharedA == sharedAA)
+
+    device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+    device.delete_file(DOPrefixes.EE_CERTIFICATE_PREFIX, keyid)
+
+@pytest.mark.parametrize(
+    "curve", [x25519.X25519PrivateKey, x448.X448PrivateKey]
+)
+def test_exchange_montgomery(device, curve):
+    pkeyA = curve.generate()
+    pbkeyA = pkeyA.public_key()
+    keyid = device.import_key(pkeyA)
+    pkeyB = curve.generate()
+    pbkeyB = pkeyB.public_key()
+
+    sharedB = pkeyB.exchange(pbkeyA)
+    sharedA = device.exchange(keyid, pbkeyB)
+
+    assert(sharedA == sharedB)
+
+    sharedAA = pkeyA.exchange(pbkeyB)
+    assert(sharedA == sharedAA)
+
+    device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+    device.delete_file(DOPrefixes.EE_CERTIFICATE_PREFIX, keyid)

tests/pico-hsm/test_023_key_generation.py

@@ -0,0 +1,30 @@
+"""
+/*
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2022 Pol Henarejos.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+"""
+
+import pytest
+from picohsm import KeyType, DOPrefixes
+
+@pytest.mark.parametrize(
+    "size", [128, 192, 256]
+)
+def test_gen_aes(device, size):
+    keyid = device.key_generation(KeyType.AES, size)
+    resp = device.list_keys()
+    assert((DOPrefixes.KEY_PREFIX, keyid) in resp)
+    device.delete_file(DOPrefixes.KEY_PREFIX, keyid)

tests/pico-hsm/test_025_key_export.py

@@ -0,0 +1,137 @@
+"""
+/*
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2023 Pol Henarejos.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+"""
+
+import pytest
+from picohsm import KeyType, DOPrefixes, APDUResponse, SWCodes
+from binascii import hexlify
+import hashlib
+from const import DEFAULT_DKEK
+from cryptography.hazmat.primitives import cmac
+from cryptography.hazmat.primitives.ciphers import algorithms, Cipher, modes
+from cryptography.hazmat.primitives.asymmetric import ec
+from cryptography.hazmat.primitives import serialization
+
+def test_initialize(device):
+    device.initialize(key_domains=1)
+    assert(device.get_key_domains() == 1)
+
+    device.set_key_domain(key_domain=0, total=2)
+
+keyid_in = -1
+keyid_out = -1
+def test_key_generation_no_key_domain(device):
+    global keyid_out
+    keyid_out = device.key_generation(KeyType.ECC, 'brainpoolP256r1')
+    device.put_contents(p1=DOPrefixes.PRKD_PREFIX, p2=keyid_out, data=[0xA0])
+    resp = device.list_keys()
+    assert((DOPrefixes.KEY_PREFIX, keyid_out) in resp)
+    assert((DOPrefixes.PRKD_PREFIX, keyid_out) in resp)
+
+def test_key_generation_with_key_domain(device):
+    global keyid_in
+    keyid_in = device.key_generation(KeyType.ECC, 'brainpoolP256r1', key_domain=0)
+    device.put_contents(p1=DOPrefixes.PRKD_PREFIX, p2=keyid_in, data=[0xA0])
+    resp = device.list_keys()
+    assert((DOPrefixes.KEY_PREFIX, keyid_in) in resp)
+    assert((DOPrefixes.PRKD_PREFIX, keyid_in) in resp)
+
+def test_export_key_out(device):
+    with pytest.raises(APDUResponse) as e:
+        device.export_key(keyid_out)
+    assert(e.value.sw == SWCodes.SW_REFERENCE_NOT_FOUND)
+
+def test_export_key_in_fail(device):
+    with pytest.raises(APDUResponse) as e:
+        device.export_key(keyid_in)
+    assert(e.value.sw == SWCodes.SW_REFERENCE_NOT_FOUND)
+
+def test_export_import_dkek(device):
+    resp = device.import_dkek(DEFAULT_DKEK, key_domain=0)
+    resp = device.import_dkek(DEFAULT_DKEK, key_domain=0)
+
+def test_export_key_in_ok(device):
+    resp = device.export_key(keyid_in)
+    kcv = hashlib.sha256(b'\x00'*32).digest()[:8]
+    assert(kcv == resp[:8])
+    assert(resp[8] == 12)
+    assert(resp[9:21] == b"\x00\x0A\x04\x00\x7F\x00\x07\x02\x02\x02\x02\x03")
+
+    pkey = hashlib.sha256(b'\x00'*32+b'\x00\x00\x00\x02').digest()
+    c = cmac.CMAC(algorithms.AES(pkey))
+    c.update(resp[:-16])
+    resCMAC = c.finalize()
+    assert(resCMAC == resp[-16:])
+
+def test_delete_keys_in_out(device):
+    device.delete_file(DOPrefixes.KEY_PREFIX, keyid_in)
+    device.delete_file(DOPrefixes.EE_CERTIFICATE_PREFIX, keyid_in)
+    device.delete_file(DOPrefixes.KEY_PREFIX, keyid_out)
+    device.delete_file(DOPrefixes.EE_CERTIFICATE_PREFIX, keyid_out)
+
+def test_export_import(device):
+    pkey_gen = ec.generate_private_key(ec.BrainpoolP256R1())
+    keyid = device.import_key(pkey_gen)
+
+    resp = device.export_key(keyid)
+    kcv = hashlib.sha256(b'\x00'*32).digest()[:8]
+    assert(kcv == resp[:8])
+    assert(resp[8] == 12)
+    assert(resp[9:21] == b"\x00\x0A\x04\x00\x7F\x00\x07\x02\x02\x02\x02\x03")
+
+    pkey = hashlib.sha256(b'\x00'*32+b'\x00\x00\x00\x02').digest()
+    c = cmac.CMAC(algorithms.AES(pkey))
+    c.update(resp[:-16])
+    resCMAC = c.finalize()
+    assert(resCMAC == resp[-16:])
+
+    iv = b'\x00'*16
+    pkey = hashlib.sha256(b'\x00'*32+b'\x00\x00\x00\x01').digest()
+    cipher = Cipher(algorithms.AES(pkey), modes.CBC(iv))
+    decryptor = cipher.decryptor()
+    payload = decryptor.update(resp[27:-16]) + decryptor.finalize()
+
+    rnd = payload[:8]
+    ofs = 8
+    key_size = int.from_bytes(payload[ofs:ofs+2], 'big')
+    ofs += 2
+    A_len = int.from_bytes(payload[ofs:ofs+2], 'big')
+    ofs += 2+A_len
+    B_len = int.from_bytes(payload[ofs:ofs+2], 'big')
+    ofs += 2+B_len
+    P_len = int.from_bytes(payload[ofs:ofs+2], 'big')
+    ofs += 2+P_len
+    N_len = int.from_bytes(payload[ofs:ofs+2], 'big')
+    ofs += 2+N_len
+    G_len = int.from_bytes(payload[ofs:ofs+2], 'big')
+    ofs += 2+G_len
+    d_len = int.from_bytes(payload[ofs:ofs+2], 'big')
+    ofs += 2
+    d = payload[ofs:ofs+d_len]
+    ofs += d_len
+    Q_len = int.from_bytes(payload[ofs:ofs+2], 'big')
+    ofs += 2
+    Q = payload[ofs:ofs+Q_len]
+    ofs += Q_len
+
+    pkey_ex = ec.EllipticCurvePrivateNumbers(int.from_bytes(d, 'big'), ec.EllipticCurvePublicKey.from_encoded_point(ec.BrainpoolP256R1(), Q).public_numbers()).private_key()
+    assert(pkey_gen.private_bytes(serialization.Encoding.DER, serialization.PrivateFormat.PKCS8, serialization.NoEncryption()) == pkey_ex.private_bytes(serialization.Encoding.DER, serialization.PrivateFormat.PKCS8, serialization.NoEncryption()))
+    assert(pkey_gen.public_key().public_bytes(serialization.Encoding.X962, serialization.PublicFormat.UncompressedPoint) == pkey_ex.public_key().public_bytes(serialization.Encoding.X962, serialization.PublicFormat.UncompressedPoint))
+
+    device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+    device.delete_file(DOPrefixes.EE_CERTIFICATE_PREFIX, keyid)

tests/pico-hsm/test_030_signature.py

@@ -0,0 +1,66 @@
+"""
+/*
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2022 Pol Henarejos.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+"""
+
+import pytest
+from picohsm import KeyType, DOPrefixes, Algorithm
+from binascii import hexlify
+import hashlib
+
+data = b'Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam neque urna, iaculis quis auctor scelerisque, auctor ut risus. In rhoncus, odio consequat consequat ultrices, ex libero dictum risus, accumsan interdum nisi orci ac neque. Ut vitae sem in metus hendrerit facilisis. Mauris maximus tristique mi, quis blandit lectus convallis eget.'
+
+
+@pytest.mark.parametrize(
+    "curve", ['secp192r1', 'secp256r1', 'secp384r1', 'secp521r1', 'brainpoolP256r1', 'brainpoolP384r1', 'brainpoolP512r1', 'secp256k1']
+)
+@pytest.mark.parametrize(
+    "scheme", [Algorithm.ALGO_EC_RAW, Algorithm.ALGO_EC_SHA1, Algorithm.ALGO_EC_SHA224, Algorithm.ALGO_EC_SHA256, Algorithm.ALGO_EC_SHA384, Algorithm.ALGO_EC_SHA512]
+)
+def test_signature_ecc(device, curve, scheme):
+    keyid = device.key_generation(KeyType.ECC, curve)
+    pubkey = device.public_key(keyid=keyid, param=curve)
+    if (scheme == Algorithm.ALGO_EC_RAW):
+        datab = hashlib.sha512(data).digest()
+    else:
+        datab = data
+    signature = device.sign(keyid=keyid, scheme=scheme, data=datab)
+    device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+    device.verify(pubkey, datab, signature, scheme)
+
+@pytest.mark.parametrize(
+    "modulus", [1024,2048,4096]
+)
+@pytest.mark.parametrize(
+    "scheme", [Algorithm.ALGO_RSA_PKCS1_SHA1, Algorithm.ALGO_RSA_PKCS1_SHA224, Algorithm.ALGO_RSA_PKCS1_SHA256, Algorithm.ALGO_RSA_PKCS1_SHA384, Algorithm.ALGO_RSA_PKCS1_SHA512, Algorithm.ALGO_RSA_PSS_SHA1, Algorithm.ALGO_RSA_PSS_SHA224, Algorithm.ALGO_RSA_PSS_SHA256, Algorithm.ALGO_RSA_PSS_SHA384, Algorithm.ALGO_RSA_PSS_SHA512]
+)
+def test_signature_rsa(device, modulus, scheme):
+    keyid = device.key_generation(KeyType.RSA, modulus)
+    pubkey = device.public_key(keyid=keyid)
+    signature = device.sign(keyid=keyid, scheme=scheme, data=data)
+    device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+    device.verify(pubkey, data, signature, scheme)
+
+@pytest.mark.parametrize(
+    "curve", ['ed25519', 'ed448']
+)
+def test_signature_edwards(device, curve):
+    keyid = device.key_generation(KeyType.ECC, curve)
+    pubkey = device.public_key(keyid=keyid)
+    signature = device.sign(keyid=keyid, scheme=Algorithm.ALGO_EC_RAW, data=data)
+    device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+    device.verify(pubkey, data, signature)

tests/pico-hsm/test_040_decrypt.py

@@ -0,0 +1,47 @@
+"""
+/*
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2022 Pol Henarejos.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+"""
+
+import pytest
+from picohsm import KeyType, DOPrefixes
+from binascii import hexlify
+from cryptography.hazmat.primitives.asymmetric import padding
+from cryptography.hazmat.primitives import hashes
+
+data = b'Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam neque urna, iaculis quis auctor scelerisque, auctor ut risus. In rhoncus, odio consequat consequat ultrices, ex libero dictum risus, accumsan interdum nisi orci ac neque. Ut vitae sem in metus hendrerit facilisis. Mauris maximus tristique mi, quis blandit lectus convallis eget.'
+
+@pytest.mark.parametrize(
+    "modulus", [1024,2048,4096]
+)
+@pytest.mark.parametrize(
+    "pad", [padding.PKCS1v15(), padding.OAEP(
+        mgf=padding.MGF1(algorithm=hashes.SHA256()),
+        algorithm=hashes.SHA256(),
+        label=None
+    )]
+)
+def test_decrypt_rsa(device, modulus, pad):
+
+    keyid = device.key_generation(KeyType.RSA, modulus)
+    pubkey = device.public_key(keyid=keyid)
+    message = data[:(modulus//8)-100]
+    ciphered = pubkey.encrypt(message, pad)
+    datab = device.decrypt(keyid, ciphered, pad)
+    device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+    assert(datab == message)
+

tests/pico-hsm/test_050_cipher.py

@@ -0,0 +1,53 @@
+"""
+/*
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2022 Pol Henarejos.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+"""
+
+import pytest
+import os
+from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes
+from picohsm import Algorithm, DOPrefixes
+from picohsm.const import DEFAULT_DKEK_SHARES
+from const import DEFAULT_DKEK
+
+MESSAGE = b'a secret message'
+
+def test_prepare_aes(device):
+    device.initialize(dkek_shares=DEFAULT_DKEK_SHARES)
+    resp = device.import_dkek(DEFAULT_DKEK)
+    resp = device.import_dkek(DEFAULT_DKEK)
+
+@pytest.mark.parametrize(
+    "size", [128, 192, 256]
+)
+def test_cipher_aes_cipher(device, size):
+    pkey = os.urandom(size // 8)
+    iv = b'\x00'*16
+    keyid = device.import_key(pkey)
+
+    cipher = Cipher(algorithms.AES(pkey), modes.CBC(iv))
+    encryptor = cipher.encryptor()
+    ctA = encryptor.update(MESSAGE) + encryptor.finalize()
+    ctB = device.cipher(Algorithm.ALGO_AES_CBC_ENCRYPT, keyid, MESSAGE)
+    assert(ctB == ctA)
+
+    decryptor = cipher.decryptor()
+    plA = decryptor.update(ctA) + decryptor.finalize()
+    plB = device.cipher(Algorithm.ALGO_AES_CBC_DECRYPT, keyid, ctA)
+    device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+    assert(plB == plA)
+    assert(plB == MESSAGE)

tests/pico-hsm/test_051_chachapoly.py

@@ -0,0 +1,126 @@
+"""
+/*
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2022 Pol Henarejos.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+"""
+
+import pytest
+import os
+from cryptography.hazmat.primitives.ciphers import aead
+import cryptography.exceptions
+from picohsm import APDUResponse, DOPrefixes, EncryptionMode, SWCodes
+from picohsm.const import DEFAULT_DKEK_SHARES
+from const import DEFAULT_DKEK
+from binascii import hexlify
+
+MESSAGE = b'a secret message'
+AAD = b'this is a tag for AAD'
+
+def test_prepare_chachapoly(device):
+    device.initialize(dkek_shares=DEFAULT_DKEK_SHARES)
+    resp = device.import_dkek(DEFAULT_DKEK)
+    resp = device.import_dkek(DEFAULT_DKEK)
+
+def generate_key(device):
+     # ChaCha uses 32 bytes key
+    pkey = os.urandom(256 // 8)
+    keyid = device.import_key(pkey)
+    return pkey, keyid
+
+
+def test_cipher_chachapoly_cipher(device):
+    iv = b'\x00'*12
+    pkey, keyid = generate_key(device)
+
+    ctd = device.chachapoly(keyid, EncryptionMode.ENCRYPT, data=MESSAGE, aad=AAD)
+
+    chacha = aead.ChaCha20Poly1305(pkey)
+    ctg = chacha.encrypt(iv, MESSAGE, AAD)
+    assert(ctd == ctg)
+
+    pld = device.chachapoly(keyid, EncryptionMode.DECRYPT, data=ctd, aad=AAD)
+
+    plg = chacha.decrypt(iv, ctg, AAD)
+    device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+    assert(pld == plg)
+    assert(pld == MESSAGE)
+
+def test_cipher_chachapoly_random_iv(device):
+    pkey, keyid = generate_key(device)
+    iv = os.urandom(12)
+    ctd = device.chachapoly(keyid, EncryptionMode.ENCRYPT, data=MESSAGE, iv=iv, aad=AAD)
+
+    chacha = aead.ChaCha20Poly1305(pkey)
+    ctg = chacha.encrypt(iv, MESSAGE, AAD)
+    assert(ctd == ctg)
+
+    pld = device.chachapoly(keyid, EncryptionMode.DECRYPT, data=ctd, iv=iv, aad=AAD)
+
+    plg = chacha.decrypt(iv, ctg, AAD)
+    device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+    assert(pld == plg)
+    assert(pld == MESSAGE)
+
+def test_cipher_chachapoly_no_aad(device):
+    pkey, keyid = generate_key(device)
+    iv = os.urandom(12)
+    ctd = device.chachapoly(keyid, EncryptionMode.ENCRYPT, data=MESSAGE, iv=iv)
+
+    chacha = aead.ChaCha20Poly1305(pkey)
+    ctg = chacha.encrypt(iv, MESSAGE, b'')
+    assert(ctd == ctg)
+
+    pld = device.chachapoly(keyid, EncryptionMode.DECRYPT, data=ctd, iv=iv)
+
+    plg = chacha.decrypt(iv, ctg, b'')
+    device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+    assert(pld == plg)
+    assert(pld == MESSAGE)
+
+def test_cipher_chachapoly_bad_random_iv(device):
+    pkey, keyid = generate_key(device)
+    iv = os.urandom(12)
+    ctd = device.chachapoly(keyid, EncryptionMode.ENCRYPT, data=MESSAGE, iv=iv, aad=AAD)
+
+    chacha = aead.ChaCha20Poly1305(pkey)
+    ctg = chacha.encrypt(iv, MESSAGE, AAD)
+    assert(ctd == ctg)
+
+    iv = os.urandom(12)
+    with pytest.raises(APDUResponse) as e:
+        pld = device.chachapoly(keyid, EncryptionMode.DECRYPT, data=ctd, iv=iv, aad=AAD)
+    assert (e.value.sw == SWCodes.SW_WRONG_DATA)
+
+    with pytest.raises(cryptography.exceptions.InvalidTag):
+        plg = chacha.decrypt(iv, ctg, AAD)
+    device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+
+def test_cipher_chachapoly_bad_aad(device):
+    pkey, keyid = generate_key(device)
+    iv = os.urandom(12)
+    ctd = device.chachapoly(keyid, EncryptionMode.ENCRYPT, data=MESSAGE, iv=iv, aad=AAD)
+
+    chacha = aead.ChaCha20Poly1305(pkey)
+    ctg = chacha.encrypt(iv, MESSAGE, AAD)
+    assert(ctd == ctg)
+
+    with pytest.raises(APDUResponse) as e:
+        pld = device.chachapoly(keyid, EncryptionMode.DECRYPT, data=ctd, iv=iv, aad=AAD + b'bad')
+    assert (e.value.sw == SWCodes.SW_WRONG_DATA)
+
+    with pytest.raises(cryptography.exceptions.InvalidTag):
+        plg = chacha.decrypt(iv, ctg, AAD + b'bad')
+    device.delete_file(DOPrefixes.KEY_PREFIX, keyid)

tests/pico-hsm/test_052_aes_ext.py

@@ -0,0 +1,342 @@
+"""
+/*
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2022 Pol Henarejos.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+"""
+
+import pytest
+import os
+from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes, aead
+import cryptography.exceptions
+from picohsm import APDUResponse, DOPrefixes, EncryptionMode, SWCodes, AES
+from picohsm.const import DEFAULT_DKEK_SHARES
+from const import DEFAULT_DKEK
+from binascii import hexlify
+
+MESSAGE = b'a secret message'
+AAD = b'this is a tag for AAD'
+
+def test_prepare_aes(device):
+    device.initialize(dkek_shares=DEFAULT_DKEK_SHARES)
+    resp = device.import_dkek(DEFAULT_DKEK)
+    resp = device.import_dkek(DEFAULT_DKEK)
+
+def generate_key(device, size):
+    pkey = os.urandom(size // 8)
+    keyid = device.import_key(pkey)
+    return pkey, keyid
+
+@pytest.mark.parametrize(
+    "size", [128, 192, 256]
+)
+def test_aes_ecb(device, size):
+    pkey, keyid = generate_key(device, size)
+    ctA = device.aes(keyid, EncryptionMode.ENCRYPT, AES.ECB, MESSAGE)
+
+    cipher = Cipher(algorithms.AES(pkey), modes.ECB())
+    encryptor = cipher.encryptor()
+    ctB = encryptor.update(MESSAGE) + encryptor.finalize()
+    assert(ctA == ctB)
+
+    dtA = device.aes(keyid, EncryptionMode.DECRYPT, AES.ECB, ctA)
+    decryptor = cipher.decryptor()
+    dtB = decryptor.update(ctB) + decryptor.finalize()
+    assert(dtA == dtB)
+    assert(dtA == MESSAGE)
+    device.delete_key(keyid)
+
+@pytest.mark.parametrize(
+    "size", [128, 192, 256]
+)
+def test_aes_cbc_no_iv(device, size):
+    pkey, keyid = generate_key(device, size)
+    ctA = device.aes(keyid, EncryptionMode.ENCRYPT, AES.CBC, MESSAGE)
+
+    iv = b'\x00' * 16
+    cipher = Cipher(algorithms.AES(pkey), modes.CBC(iv))
+    encryptor = cipher.encryptor()
+    ctB = encryptor.update(MESSAGE) + encryptor.finalize()
+    assert(ctA == ctB)
+
+    dtA = device.aes(keyid, EncryptionMode.DECRYPT, AES.CBC, ctA)
+    decryptor = cipher.decryptor()
+    dtB = decryptor.update(ctB) + decryptor.finalize()
+    assert(dtA == dtB)
+    assert(dtA == MESSAGE)
+    device.delete_key(keyid)
+
+@pytest.mark.parametrize(
+    "size", [128, 192, 256]
+)
+def test_aes_cbc_iv(device, size):
+    pkey, keyid = generate_key(device, size)
+    iv = os.urandom(16)
+    ctA = device.aes(keyid, EncryptionMode.ENCRYPT, AES.CBC, MESSAGE, iv=iv)
+
+    cipher = Cipher(algorithms.AES(pkey), modes.CBC(iv))
+    encryptor = cipher.encryptor()
+    ctB = encryptor.update(MESSAGE) + encryptor.finalize()
+    assert(ctA == ctB)
+
+    dtA = device.aes(keyid, EncryptionMode.DECRYPT, AES.CBC, ctA, iv=iv)
+    decryptor = cipher.decryptor()
+    dtB = decryptor.update(ctB) + decryptor.finalize()
+    assert(dtA == dtB)
+    assert(dtA == MESSAGE)
+    device.delete_key(keyid)
+
+@pytest.mark.parametrize(
+    "size", [128, 192, 256]
+)
+def test_aes_ofb_no_iv(device, size):
+    pkey, keyid = generate_key(device, size)
+    ctA = device.aes(keyid, EncryptionMode.ENCRYPT, AES.OFB, MESSAGE)
+
+    iv = b'\x00' * 16
+    cipher = Cipher(algorithms.AES(pkey), modes.OFB(iv))
+    encryptor = cipher.encryptor()
+    ctB = encryptor.update(MESSAGE) + encryptor.finalize()
+    assert(ctA == ctB)
+
+    dtA = device.aes(keyid, EncryptionMode.DECRYPT, AES.OFB, ctA)
+    decryptor = cipher.decryptor()
+    dtB = decryptor.update(ctB) + decryptor.finalize()
+    assert(dtA == dtB)
+    assert(dtA == MESSAGE)
+    device.delete_key(keyid)
+
+@pytest.mark.parametrize(
+    "size", [128, 192, 256]
+)
+def test_aes_ofb_iv(device, size):
+    pkey, keyid = generate_key(device, size)
+    iv = os.urandom(16)
+    ctA = device.aes(keyid, EncryptionMode.ENCRYPT, AES.OFB, MESSAGE, iv=iv)
+
+    cipher = Cipher(algorithms.AES(pkey), modes.OFB(iv))
+    encryptor = cipher.encryptor()
+    ctB = encryptor.update(MESSAGE) + encryptor.finalize()
+    assert(ctA == ctB)
+
+    dtA = device.aes(keyid, EncryptionMode.DECRYPT, AES.OFB, ctA, iv=iv)
+    decryptor = cipher.decryptor()
+    dtB = decryptor.update(ctB) + decryptor.finalize()
+    assert(dtA == dtB)
+    assert(dtA == MESSAGE)
+    device.delete_key(keyid)
+
+@pytest.mark.parametrize(
+    "size", [128, 192, 256]
+)
+def test_aes_cfb_no_iv(device, size):
+    pkey, keyid = generate_key(device, size)
+    ctA = device.aes(keyid, EncryptionMode.ENCRYPT, AES.CFB, MESSAGE)
+
+    iv = b'\x00' * 16
+    cipher = Cipher(algorithms.AES(pkey), modes.CFB(iv))
+    encryptor = cipher.encryptor()
+    ctB = encryptor.update(MESSAGE) + encryptor.finalize()
+    assert(ctA == ctB)
+
+    dtA = device.aes(keyid, EncryptionMode.DECRYPT, AES.CFB, ctA)
+    decryptor = cipher.decryptor()
+    dtB = decryptor.update(ctB) + decryptor.finalize()
+    assert(dtA == dtB)
+    assert(dtA == MESSAGE)
+    device.delete_key(keyid)
+
+@pytest.mark.parametrize(
+    "size", [128, 192, 256]
+)
+def test_aes_cfb_iv(device, size):
+    pkey, keyid = generate_key(device, size)
+    iv = os.urandom(16)
+    ctA = device.aes(keyid, EncryptionMode.ENCRYPT, AES.CFB, MESSAGE, iv=iv)
+
+    cipher = Cipher(algorithms.AES(pkey), modes.CFB(iv))
+    encryptor = cipher.encryptor()
+    ctB = encryptor.update(MESSAGE) + encryptor.finalize()
+    assert(ctA == ctB)
+
+    dtA = device.aes(keyid, EncryptionMode.DECRYPT, AES.CFB, ctA, iv=iv)
+    decryptor = cipher.decryptor()
+    dtB = decryptor.update(ctB) + decryptor.finalize()
+    assert(dtA == dtB)
+    assert(dtA == MESSAGE)
+    device.delete_key(keyid)
+
+@pytest.mark.parametrize(
+    "size", [128, 192, 256]
+)
+def test_aes_gcm_no_iv(device, size):
+    pkey, keyid = generate_key(device, size)
+    ctA = device.aes(keyid, EncryptionMode.ENCRYPT, AES.GCM, MESSAGE, aad=AAD)
+
+    iv = b'\x00' * 16
+    encryptor = Cipher(algorithms.AES(pkey), modes.GCM(iv)).encryptor()
+    encryptor.authenticate_additional_data(AAD)
+    ctB = encryptor.update(MESSAGE) + encryptor.finalize()
+    assert(ctA == ctB + encryptor.tag)
+
+    dtA = device.aes(keyid, EncryptionMode.DECRYPT, AES.GCM, ctA, aad=AAD)
+    decryptor = Cipher(algorithms.AES(pkey), modes.GCM(iv, encryptor.tag)).decryptor()
+    decryptor.authenticate_additional_data(AAD)
+    dtB = decryptor.update(ctB) + decryptor.finalize()
+    assert(dtA == dtB)
+    assert(dtA == MESSAGE)
+    device.delete_key(keyid)
+
+@pytest.mark.parametrize(
+    "size", [128, 192, 256]
+)
+def test_aes_gcm_iv(device, size):
+    pkey, keyid = generate_key(device, size)
+    iv = os.urandom(16)
+    ctA = device.aes(keyid, EncryptionMode.ENCRYPT, AES.GCM, MESSAGE, iv=iv, aad=AAD)
+
+    encryptor = Cipher(algorithms.AES(pkey), modes.GCM(iv)).encryptor()
+    encryptor.authenticate_additional_data(AAD)
+    ctB = encryptor.update(MESSAGE) + encryptor.finalize()
+    assert(ctA == ctB + encryptor.tag)
+
+    dtA = device.aes(keyid, EncryptionMode.DECRYPT, AES.GCM, ctA, iv=iv, aad=AAD)
+    decryptor = Cipher(algorithms.AES(pkey), modes.GCM(iv, encryptor.tag)).decryptor()
+    decryptor.authenticate_additional_data(AAD)
+    dtB = decryptor.update(ctB) + decryptor.finalize()
+    assert(dtA == dtB)
+    assert(dtA == MESSAGE)
+    device.delete_key(keyid)
+
+@pytest.mark.parametrize(
+    "size", [256, 512]
+)
+def test_aes_xts_no_iv(device, size):
+    pkey, keyid = generate_key(device, size)
+    ctA = device.aes(keyid, EncryptionMode.ENCRYPT, AES.XTS, MESSAGE)
+
+    iv = b'\x00' * 16
+    cipher = Cipher(algorithms.AES(pkey), modes.XTS(iv))
+    encryptor = cipher.encryptor()
+    ctB = encryptor.update(MESSAGE) + encryptor.finalize()
+    assert(ctA == ctB)
+
+    dtA = device.aes(keyid, EncryptionMode.DECRYPT, AES.XTS, ctA)
+    decryptor = cipher.decryptor()
+    dtB = decryptor.update(ctB) + decryptor.finalize()
+    assert(dtA == dtB)
+    assert(dtA == MESSAGE)
+    device.delete_key(keyid)
+
+@pytest.mark.parametrize(
+    "size", [256, 512]
+)
+def test_aes_xts_iv(device, size):
+    pkey, keyid = generate_key(device, size)
+    iv = os.urandom(16)
+    ctA = device.aes(keyid, EncryptionMode.ENCRYPT, AES.XTS, MESSAGE, iv=iv)
+
+    cipher = Cipher(algorithms.AES(pkey), modes.XTS(iv))
+    encryptor = cipher.encryptor()
+    ctB = encryptor.update(MESSAGE) + encryptor.finalize()
+    assert(ctA == ctB)
+
+    dtA = device.aes(keyid, EncryptionMode.DECRYPT, AES.XTS, ctA, iv=iv)
+    decryptor = cipher.decryptor()
+    dtB = decryptor.update(ctB) + decryptor.finalize()
+    assert(dtA == dtB)
+    assert(dtA == MESSAGE)
+    device.delete_key(keyid)
+
+@pytest.mark.parametrize(
+    "size", [128, 192, 256]
+)
+def test_aes_ctr_no_iv(device, size):
+    pkey, keyid = generate_key(device, size)
+    ctA = device.aes(keyid, EncryptionMode.ENCRYPT, AES.CTR, MESSAGE)
+
+    iv = b'\x00' * 16
+    cipher = Cipher(algorithms.AES(pkey), modes.CTR(iv))
+    encryptor = cipher.encryptor()
+    ctB = encryptor.update(MESSAGE) + encryptor.finalize()
+    assert(ctA == ctB)
+
+    dtA = device.aes(keyid, EncryptionMode.DECRYPT, AES.CTR, ctA)
+    decryptor = cipher.decryptor()
+    dtB = decryptor.update(ctB) + decryptor.finalize()
+    assert(dtA == dtB)
+    assert(dtA == MESSAGE)
+    device.delete_key(keyid)
+
+@pytest.mark.parametrize(
+    "size", [128, 192, 256]
+)
+def test_aes_ctr_iv(device, size):
+    pkey, keyid = generate_key(device, size)
+    iv = os.urandom(16)
+    ctA = device.aes(keyid, EncryptionMode.ENCRYPT, AES.CTR, MESSAGE, iv=iv)
+
+    cipher = Cipher(algorithms.AES(pkey), modes.CTR(iv))
+    encryptor = cipher.encryptor()
+    ctB = encryptor.update(MESSAGE) + encryptor.finalize()
+    assert(ctA == ctB)
+
+    dtA = device.aes(keyid, EncryptionMode.DECRYPT, AES.CTR, ctA, iv=iv)
+    decryptor = cipher.decryptor()
+    dtB = decryptor.update(ctB) + decryptor.finalize()
+    assert(dtA == dtB)
+    assert(dtA == MESSAGE)
+    device.delete_key(keyid)
+
+@pytest.mark.parametrize(
+    "size", [128, 192, 256]
+)
+def test_aes_ccm_no_iv(device, size):
+    pkey, keyid = generate_key(device, size)
+    ctA = device.aes(keyid, EncryptionMode.ENCRYPT, AES.CCM, MESSAGE, aad=AAD)
+
+    iv = b'\x00' * 12
+    encryptor = aead.AESCCM(pkey)
+    ctB = encryptor.encrypt(iv, MESSAGE, AAD)
+    assert(ctA == ctB)
+
+    dtA = device.aes(keyid, EncryptionMode.DECRYPT, AES.CCM, ctA, aad=AAD)
+    decryptor = encryptor
+    dtB = decryptor.decrypt(iv, ctB, AAD)
+    assert(dtA == dtB)
+    assert(dtA == MESSAGE)
+    device.delete_key(keyid)
+
+@pytest.mark.parametrize(
+    "size", [128, 192, 256]
+)
+@pytest.mark.parametrize(
+    "iv_len", [7, 8, 9, 10, 11, 12, 13]
+)
+def test_aes_ccm_iv(device, size, iv_len):
+    pkey, keyid = generate_key(device, size)
+    iv = os.urandom(iv_len)
+    ctA = device.aes(keyid, EncryptionMode.ENCRYPT, AES.CCM, MESSAGE, iv=iv, aad=AAD)
+
+    encryptor = aead.AESCCM(pkey)
+    ctB = encryptor.encrypt(iv, MESSAGE, AAD)
+    assert(ctA == ctB)
+
+    dtA = device.aes(keyid, EncryptionMode.DECRYPT, AES.CCM, ctA, iv=iv, aad=AAD)
+    decryptor = encryptor
+    dtB = decryptor.decrypt(iv, ctB, AAD)
+    assert(dtA == dtB)
+    assert(dtA == MESSAGE)
+    device.delete_key(keyid)

tests/pico-hsm/test_060_mac.py

@@ -0,0 +1,63 @@
+"""
+/*
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2022 Pol Henarejos.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+"""
+
+import pytest
+import os
+from cryptography.hazmat.primitives import hashes, hmac, cmac
+from cryptography.hazmat.primitives.ciphers import algorithms
+from picohsm import DOPrefixes
+from picohsm.const import DEFAULT_DKEK_SHARES
+from const import DEFAULT_DKEK
+
+MESSAGE = b'a secret message'
+
+def test_prepare_aes(device):
+    device.initialize(dkek_shares=DEFAULT_DKEK_SHARES)
+    resp = device.import_dkek(DEFAULT_DKEK)
+    resp = device.import_dkek(DEFAULT_DKEK)
+
+@pytest.mark.parametrize(
+    "size", [128, 192, 256]
+)
+@pytest.mark.parametrize(
+    "algo", [hashes.SHA1, hashes.SHA224, hashes.SHA256, hashes.SHA384, hashes.SHA512]
+)
+def test_mac_hmac(device, size, algo):
+    pkey = os.urandom(size // 8)
+    keyid = device.import_key(pkey)
+    resA = device.hmac(algo, keyid, MESSAGE)
+    h = hmac.HMAC(pkey, algo())
+    h.update(MESSAGE)
+    resB = h.finalize()
+    device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+    assert(resA == resB)
+
+@pytest.mark.parametrize(
+    "size", [128, 192, 256]
+)
+def test_mac_cmac(device, size):
+    pkey = os.urandom(size // 8)
+    keyid = device.import_key(pkey)
+    resA = device.cmac(keyid, MESSAGE)
+    c = cmac.CMAC(algorithms.AES(pkey))
+    c.update(MESSAGE)
+    resB = c.finalize()
+    device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+    assert(resA == resB)
+

tests/pico-hsm/test_070_hkdf.py

@@ -0,0 +1,82 @@
+"""
+/*
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2022 Pol Henarejos.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+"""
+
+import pytest
+import os
+from cryptography.hazmat.primitives import hashes
+from cryptography.hazmat.primitives.kdf.hkdf import HKDF
+from cryptography import exceptions
+from picohsm.const import DEFAULT_DKEK_SHARES
+from const import DEFAULT_DKEK
+from picohsm import DOPrefixes
+
+INFO = b'info message'
+
+def test_prepare_kd(device):
+    device.initialize(dkek_shares=DEFAULT_DKEK_SHARES)
+    resp = device.import_dkek(DEFAULT_DKEK)
+    resp = device.import_dkek(DEFAULT_DKEK)
+
+@pytest.mark.parametrize(
+    "size", [128, 192, 256]
+)
+@pytest.mark.parametrize(
+    "algo", [hashes.SHA256, hashes.SHA384, hashes.SHA512]
+)
+@pytest.mark.parametrize(
+    "out_len", [32, 64, 256, 1024]
+)
+class TestHKDF:
+    def test_hkdf_ok(self, device, size, algo, out_len):
+        pkey = os.urandom(size // 8)
+        keyid = device.import_key(pkey)
+        salt = os.urandom(16)
+        resA = device.hkdf(algo, keyid, INFO, salt, out_len=out_len)
+        device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+        hkdf = HKDF(
+            algorithm=algo(),
+            length=out_len,
+            salt=salt,
+            info=INFO,
+        )
+        resB = hkdf.derive(pkey)
+        assert(resA == resB)
+        hkdf = HKDF(
+            algorithm=algo(),
+            length=out_len,
+            salt=salt,
+            info=INFO,
+        )
+        hkdf.verify(pkey, resA)
+
+    def test_hkdf_fail(self, device, size, algo, out_len):
+        pkey = os.urandom(size // 8)
+        keyid = device.import_key(pkey)
+        salt = os.urandom(16)
+        resA = device.hkdf(algo, keyid, INFO, salt, out_len=out_len)
+        device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+        hkdf = HKDF(
+            algorithm=algo(),
+            length=out_len,
+            salt=salt,
+            info=INFO,
+        )
+        pkey = os.urandom(size // 8)
+        with pytest.raises(exceptions.InvalidKey):
+            hkdf.verify(pkey, resA)

tests/pico-hsm/test_071_pbkdf2.py

@@ -0,0 +1,86 @@
+"""
+/*
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2022 Pol Henarejos.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+"""
+
+import pytest
+import os
+from cryptography.hazmat.primitives import hashes
+from cryptography.hazmat.primitives.kdf.pbkdf2 import PBKDF2HMAC
+from cryptography import exceptions
+from picohsm.const import DEFAULT_DKEK_SHARES
+from const import DEFAULT_DKEK
+from picohsm import DOPrefixes
+
+INFO = b'info message'
+
+def test_prepare_kd(device):
+    device.initialize(dkek_shares=DEFAULT_DKEK_SHARES)
+    resp = device.import_dkek(DEFAULT_DKEK)
+    resp = device.import_dkek(DEFAULT_DKEK)
+
+@pytest.mark.parametrize(
+    "size", [128, 192, 256]
+)
+@pytest.mark.parametrize(
+    "algo", [hashes.SHA1, hashes.SHA224, hashes.SHA256, hashes.SHA384, hashes.SHA512]
+)
+@pytest.mark.parametrize(
+    "out_len", [32, 64, 256, 1024]
+)
+@pytest.mark.parametrize(
+    "iterations", [1024, 2048]
+)
+class TestPBKDF2:
+    def test_pbkdf2_ok(self, device, size, algo, out_len, iterations):
+        pkey = os.urandom(size // 8)
+        keyid = device.import_key(pkey)
+        salt = os.urandom(16)
+        resA = device.pbkdf2(algo, keyid, salt, iterations=iterations, out_len=out_len)
+        device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+        kdf = PBKDF2HMAC(
+            algorithm=algo(),
+            length=out_len,
+            salt=salt,
+            iterations=iterations,
+        )
+        resB = kdf.derive(pkey)
+        assert(resA == resB)
+        kdf = PBKDF2HMAC(
+            algorithm=algo(),
+            length=out_len,
+            salt=salt,
+            iterations=iterations,
+        )
+        kdf.verify(pkey, resA)
+
+    def test_pbkdf2_fail(self, device, size, algo, out_len, iterations):
+        pkey = os.urandom(size // 8)
+        keyid = device.import_key(pkey)
+        salt = os.urandom(16)
+        resA = device.pbkdf2(algo, keyid, salt, iterations=iterations, out_len=out_len)
+        device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+
+        kdf = PBKDF2HMAC(
+            algorithm=algo(),
+            length=out_len,
+            salt=salt,
+            iterations=iterations,
+        )
+        pkey = os.urandom(size // 8)
+        with pytest.raises(exceptions.InvalidKey):
+            kdf.verify(pkey, resA)

tests/pico-hsm/test_072_x963.py

@@ -0,0 +1,77 @@
+"""
+/*
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2022 Pol Henarejos.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+"""
+
+import pytest
+import os
+from cryptography.hazmat.primitives import hashes
+from cryptography.hazmat.primitives.kdf.x963kdf import X963KDF
+from cryptography import exceptions
+from picohsm.const import DEFAULT_DKEK_SHARES
+from const import DEFAULT_DKEK
+from picohsm import DOPrefixes
+
+INFO = b'shared message'
+
+def test_prepare_kd(device):
+    device.initialize(dkek_shares=DEFAULT_DKEK_SHARES)
+    resp = device.import_dkek(DEFAULT_DKEK)
+    resp = device.import_dkek(DEFAULT_DKEK)
+
+@pytest.mark.parametrize(
+    "size", [128, 192, 256]
+)
+@pytest.mark.parametrize(
+    "algo", [hashes.SHA1, hashes.SHA224, hashes.SHA256, hashes.SHA384, hashes.SHA512]
+)
+@pytest.mark.parametrize(
+    "out_len", [32, 64, 256, 1024]
+)
+class TestX963:
+    def test_x963_ok(self, device, size, algo, out_len):
+        pkey = os.urandom(size // 8)
+        keyid = device.import_key(pkey)
+        resA = device.x963(algo, keyid, INFO, out_len=out_len)
+        device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+        xkdf = X963KDF(
+            algorithm=algo(),
+            length=out_len,
+            sharedinfo=INFO,
+        )
+        resB = xkdf.derive(pkey)
+        assert(resA == resB)
+        xkdf = X963KDF(
+            algorithm=algo(),
+            length=out_len,
+            sharedinfo=INFO,
+        )
+        xkdf.verify(pkey, resA)
+
+    def test_x963_fail(self, device, size, algo, out_len):
+        pkey = os.urandom(size // 8)
+        keyid = device.import_key(pkey)
+        resA = device.x963(algo, keyid, INFO, out_len=out_len)
+        device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+        xkdf = X963KDF(
+            algorithm=algo(),
+            length=out_len,
+            sharedinfo=INFO,
+        )
+        pkey = os.urandom(size // 8)
+        with pytest.raises(exceptions.InvalidKey):
+            xkdf.verify(pkey, resA)

tests/pico-hsm/test_080_pka.py

@@ -0,0 +1,146 @@
+"""
+/*
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2023 Pol Henarejos.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+"""
+
+import pytest
+from binascii import unhexlify, hexlify
+from cvc.certificates import CVC
+from picohsm.utils import int_to_bytes
+from picohsm import APDUResponse, SWCodes
+from const import TERM_CERT, DICA_CERT
+from cryptography.hazmat.primitives.asymmetric import ec, utils
+from cryptography.hazmat.primitives import hashes
+
+AUT_KEY = unhexlify('0A40E11E672C28C558B72C25D93BCF28C08D39AFDD5A1A2FD3BAF7A6B27F0C2E')
+aut_pk = ec.derive_private_key(int.from_bytes(AUT_KEY, 'big'), ec.BrainpoolP256R1())
+AUT_PUK = unhexlify('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')
+
+
+term_chr = CVC().decode(TERM_CERT).chr()
+
+def test_initialize(device):
+    device.initialize(puk_auts=1, puk_min_auts=1)
+    device.logout()
+
+def test_register_puk(device):
+    status = device.get_puk_status()
+    assert(status == bytes([1,1,1,0]))
+
+    status = device.register_puk(AUT_PUK, TERM_CERT, DICA_CERT)
+    assert(status == bytes([1,0,1,0]))
+    assert(device.check_puk_key(term_chr) == 0)
+
+def test_enumerate_puk_reg(device):
+    puks = device.enumerate_puk()
+    assert(len(puks) == 1)
+    assert(puks[0]['status'] == 0)
+
+def test_authentication(device):
+    input = device.puk_prepare_signature()
+    signature = aut_pk.sign(input, ec.ECDSA(hashes.SHA256()))
+    r,s = utils.decode_dss_signature(signature)
+    signature = list(int_to_bytes(r) + int_to_bytes(s))
+    device.authenticate_puk(term_chr, signature)
+    status = device.get_puk_status()
+    assert(status == bytes([1,0,1,1]))
+
+def test_enumerate_puk_ok(device):
+    puks = device.enumerate_puk()
+    assert(len(puks) == 1)
+    assert(puks[0]['status'] == 1)
+
+def test_check_key(device):
+    assert(device.check_puk_key(term_chr) == 1)
+    bad_chr = b'XXXXX'
+    assert(device.check_puk_key(bad_chr) == -1)
+    assert(device.check_puk_key(bad_chr) != 0)
+    assert(device.check_puk_key(bad_chr) != 1)
+
+def test_puk_reset(device):
+    device.logout()
+    status = device.get_puk_status()
+    assert(status == bytes([1,0,1,0]))
+    assert(device.check_puk_key(term_chr) == 0)
+
+def test_authentication_fail(device):
+    input = b'this is a fake input'
+    signature = aut_pk.sign(input, ec.ECDSA(hashes.SHA256()))
+    r,s = utils.decode_dss_signature(signature)
+    signature = list(int_to_bytes(r) + int_to_bytes(s))
+    with pytest.raises(APDUResponse) as e:
+        device.authenticate_puk(term_chr, signature)
+    assert(e.value.sw == SWCodes.SW_CONDITIONS_NOT_SATISFIED)
+
+    status = device.get_puk_status()
+    assert(status == bytes([1,0,1,0]))
+    assert(device.check_puk_key(term_chr) == 0)
+
+def test_enumerate_puk_1(device):
+    device.initialize(puk_auts=1, puk_min_auts=1)
+    puks = device.enumerate_puk()
+    assert(len(puks) == 1)
+    assert(puks[0]['status'] == -1)
+
+    device.register_puk(AUT_PUK, TERM_CERT, DICA_CERT)
+    puks = device.enumerate_puk()
+    assert(len(puks) == 1)
+    assert(puks[0]['status'] == 0)
+
+def test_enumerate_puk_2(device):
+    device.initialize(puk_auts=2, puk_min_auts=1)
+    puks = device.enumerate_puk()
+    assert(len(puks) == 2)
+    assert(puks[0]['status'] == -1)
+    assert(puks[1]['status'] == -1)
+
+    device.register_puk(AUT_PUK, TERM_CERT, DICA_CERT)
+    puks = device.enumerate_puk()
+    assert(len(puks) == 2)
+    assert(puks[0]['status'] == 0)
+    assert(puks[1]['status'] == -1)
+
+def test_register_more_puks(device):
+    device.initialize(puk_auts=2, puk_min_auts=1)
+    status = device.get_puk_status()
+    assert(status == bytes([2,2,1,0]))
+
+    status = device.register_puk(AUT_PUK, TERM_CERT, DICA_CERT)
+    assert(status == bytes([2,1,1,0]))
+
+def test_is_pku(device):
+    device.initialize(puk_auts=1, puk_min_auts=1)
+    assert(device.is_puk() == True)
+
+    device.initialize()
+    assert(device.is_puk() == False)
+
+def test_check_puk_key(device):
+    device.initialize(puk_auts=1, puk_min_auts=1)
+    status = device.check_puk_key(term_chr)
+    assert(status == -1)
+
+    status = device.register_puk(AUT_PUK, TERM_CERT, DICA_CERT)
+    status = device.check_puk_key(term_chr)
+    assert(status == 0)
+
+
+def test_register_puk_with_no_puk(device):
+    device.initialize()
+    with pytest.raises(APDUResponse) as e:
+        device.register_puk(AUT_PUK, TERM_CERT, DICA_CERT)
+    assert(e.value.sw == SWCodes.SW_FILE_NOT_FOUND)

tests/pico-hsm/test_090_xkek.py

@@ -0,0 +1,98 @@
+"""
+/*
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2023 Pol Henarejos.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+"""
+
+import pytest
+from binascii import unhexlify, hexlify
+from picohsm.utils import int_to_bytes
+from const import TERM_CERT, DICA_CERT
+from cvc.asn1 import ASN1
+from cvc.certificates import CVC
+from cvc import oid
+from cryptography.hazmat.primitives.asymmetric import ec
+from picohsm import DOPrefixes, APDUResponse, SWCodes
+
+KDM = unhexlify(b'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')
+
+def test_initialize(device):
+    device.initialize(key_domains=1)
+    device.logout()
+
+def test_create_xkek(device):
+    with pytest.raises(APDUResponse) as e:
+        device.create_xkek(KDM)
+    assert(e.value.sw == SWCodes.SW_CONDITIONS_NOT_SATISFIED)
+
+    device.login()
+    kcv, did = device.create_xkek(KDM)
+    assert(kcv == b'\x00'*8)
+
+    gskcert = ASN1().decode(KDM).find(0x30).find(0x63).data()
+    gskQ = CVC().decode(gskcert).pubkey().find(0x86).data()
+    pub = ec.EllipticCurvePublicKey.from_encoded_point(ec.BrainpoolP256R1(), bytes(gskQ))
+    assert(did == int_to_bytes(pub.public_numbers().x)+int_to_bytes(pub.public_numbers().y))
+
+keyid = -1
+def test_derive_xkek(device):
+    global keyid
+    keyid = device.generate_xkek_key()
+
+    resp = device.list_keys()
+    assert((DOPrefixes.KEY_PREFIX, keyid) in resp)
+
+    xkek_dom = device.get_key_domain()['xkek']
+    pkey = ec.generate_private_key(ec.BrainpoolP256R1())
+    pubkey = pkey.public_key()
+    cert = CVC().cert(pubkey=pubkey, scheme=oid.ID_TA_ECDSA_SHA_256, signkey=pkey, signscheme=oid.ID_TA_ECDSA_SHA_256, car=b"UTCA00001", chr=b"UTCDUMMY00001", extensions=[
+                {
+                    'tag': 0x73,
+                    'oid': b'\x2B\x06\x01\x04\x01\x81\xC3\x1F\x03\x02\x02',
+                    'contexts': {
+                        0: xkek_dom
+                    }
+                }
+            ]).encode()
+    device.derive_xkek(keyid, cert)
+
+    resp = device.get_key_domain()
+    assert(resp['kcv'] != b'\x00'*8)
+
+
+def test_delete_xkek(device):
+    device.delete_xkek()
+
+    resp = device.get_key_domain()
+    assert(resp['kcv'] == b'\x00'*8)
+
+def test_delete_domain_with_key(device):
+    with pytest.raises(APDUResponse) as e:
+        device.delete_key_domain()
+    assert(e.value.sw == SWCodes.SW_FILE_EXISTS)
+
+    device.delete_file(DOPrefixes.KEY_PREFIX, keyid)
+    device.delete_file(DOPrefixes.EE_CERTIFICATE_PREFIX, keyid)
+
+def test_delete_domain(device):
+    device.delete_key_domain()
+
+    resp = device.get_key_domain()
+    assert('kcv' not in resp)
+    assert('xkek' not in resp)
+    assert('error' in resp)
+    assert(resp['error'] == SWCodes.SW_REFERENCE_NOT_FOUND)
+

tests/pico-hsm/test_095_bip_slip.py

@@ -0,0 +1,453 @@
+"""
+/*
+ * This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
+ * Copyright (c) 2023 Pol Henarejos.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+"""
+
+import pytest
+from binascii import unhexlify, hexlify
+from picohsm.utils import int_to_bytes
+from picohsm.const import DEFAULT_DKEK_SHARES
+from const import DEFAULT_DKEK
+from cvc.asn1 import ASN1
+from cvc.certificates import CVC
+from cvc import oid
+from cryptography.hazmat.primitives.asymmetric import ec
+from cryptography.hazmat.primitives import hashes
+from picohsm import EncryptionMode, APDUResponse, SWCodes, PicoHSM
+import hashlib
+
+TEST_STRING = b'Pico Keys are awesome!'
+
+def sha256_sha256(data):
+    return hashlib.sha256(hashlib.sha256(data).digest()).digest()
+
+def test_initialize(device):
+    device.initialize(dkek_shares=DEFAULT_DKEK_SHARES)
+    resp = device.import_dkek(DEFAULT_DKEK)
+    resp = device.import_dkek(DEFAULT_DKEK)
+
+seeds = [
+        {
+            'name': 'secp256k1',
+            'id': 0,
+            'seed': unhexlify('000102030405060708090a0b0c0d0e0f'),
+        },
+        {
+            'name': 'secp256k1',
+            'id': 1,
+            'seed': unhexlify('fffcf9f6f3f0edeae7e4e1dedbd8d5d2cfccc9c6c3c0bdbab7b4b1aeaba8a5a29f9c999693908d8a8784817e7b7875726f6c696663605d5a5754514e4b484542'),
+        },
+        {
+            'name': 'secp256k1',
+            'id': 2,
+            'seed': unhexlify('4b381541583be4423346c643850da4b320e46a87ae3d2a4e6da11eba819cd4acba45d239319ac14f863b8d5ab5a0d0c64d2e8a1e7d1457df2e5a3c51c73235be'),
+        },
+        {
+            'name': 'secp256k1',
+            'id': 3,
+            'seed': unhexlify('3ddd5602285899a946114506157c7997e5444528f3003f6134712147db19b678'),
+        },
+        {
+            'name': 'secp256r1',
+            'id': 4,
+            'seed': unhexlify('000102030405060708090a0b0c0d0e0f'),
+        },
+        {
+            'name': 'secp256r1',
+            'id': 5,
+            'seed': unhexlify('fffcf9f6f3f0edeae7e4e1dedbd8d5d2cfccc9c6c3c0bdbab7b4b1aeaba8a5a29f9c999693908d8a8784817e7b7875726f6c696663605d5a5754514e4b484542'),
+        },
+        {
+            'name': 'secp256r1',
+            'id': 6,
+            'seed': unhexlify('a7305bc8df8d0951f0cb224c0e95d7707cbdf2c6ce7e8d481fec69c7ff5e9446'),
+        },
+        {
+            'name': 'symmetric',
+            'id': 7,
+            'seed': unhexlify('c76c4ac4f4e4a00d6b274d5c39c700bb4a7ddc04fbc6f78e85ca75007b5b495f74a9043eeb77bdd53aa6fc3a0e31462270316fa04b8c19114c8798706cd02ac8'),
+        },
+    ]
+@pytest.mark.parametrize(
+    "seed", seeds
+)
+def test_generate_master(device, seed):
+    resp = device.hd_generate_master_node(curve=seed['name'], id=seed['id'], seed=seed['seed'])
+
+def hardened(i):
+    return 0x80000000 + i
+
+@pytest.mark.parametrize(
+    "path", [
+        {
+            'path': [0],
+            'xpub': b'xpub661MyMwAqRbcFtXgS5sYJABqqG9YLmC4Q1Rdap9gSE8NqtwybGhePY2gZ29ESFjqJoCu1Rupje8YtGqsefD265TMg7usUDFdp6W1EGMcet8',
+        },
+        {
+            'path': [0, hardened(0)],
+            'xpub': b'xpub68Gmy5EdvgibQVfPdqkBBCHxA5htiqg55crXYuXoQRKfDBFA1WEjWgP6LHhwBZeNK1VTsfTFUHCdrfp1bgwQ9xv5ski8PX9rL2dZXvgGDnw',
+        },
+        {
+            'path': [0, hardened(0), 1],
+            'xpub': b'xpub6ASuArnXKPbfEwhqN6e3mwBcDTgzisQN1wXN9BJcM47sSikHjJf3UFHKkNAWbWMiGj7Wf5uMash7SyYq527Hqck2AxYysAA7xmALppuCkwQ',
+        },
+        {
+            'path': [0, hardened(0), 1, hardened(2)],
+            'xpub': b'xpub6D4BDPcP2GT577Vvch3R8wDkScZWzQzMMUm3PWbmWvVJrZwQY4VUNgqFJPMM3No2dFDFGTsxxpG5uJh7n7epu4trkrX7x7DogT5Uv6fcLW5',
+        },
+        {
+            'path': [0, hardened(0), 1, hardened(2), 2],
+            'xpub': b'xpub6FHa3pjLCk84BayeJxFW2SP4XRrFd1JYnxeLeU8EqN3vDfZmbqBqaGJAyiLjTAwm6ZLRQUMv1ZACTj37sR62cfN7fe5JnJ7dh8zL4fiyLHV',
+        },
+        {
+            'path': [0, hardened(0), 1, hardened(2), 2, 1000000000],
+            'xpub': b'xpub6H1LXWLaKsWFhvm6RVpEL9P4KfRZSW7abD2ttkWP3SSQvnyA8FSVqNTEcYFgJS2UaFcxupHiYkro49S8yGasTvXEYBVPamhGW6cFJodrTHy',
+        },
+        {
+            'path': [1],
+            'xpub': b'xpub661MyMwAqRbcFW31YEwpkMuc5THy2PSt5bDMsktWQcFF8syAmRUapSCGu8ED9W6oDMSgv6Zz8idoc4a6mr8BDzTJY47LJhkJ8UB7WEGuduB',
+        },
+        {
+            'path': [1, 0],
+            'xpub': b'xpub69H7F5d8KSRgmmdJg2KhpAK8SR3DjMwAdkxj3ZuxV27CprR9LgpeyGmXUbC6wb7ERfvrnKZjXoUmmDznezpbZb7ap6r1D3tgFxHmwMkQTPH',
+        },
+        {
+            'path': [1, 0, hardened(2147483647)],
+            'xpub': b'xpub6ASAVgeehLbnwdqV6UKMHVzgqAG8Gr6riv3Fxxpj8ksbH9ebxaEyBLZ85ySDhKiLDBrQSARLq1uNRts8RuJiHjaDMBU4Zn9h8LZNnBC5y4a',
+        },
+        {
+            'path': [1, 0, hardened(2147483647), 1],
+            'xpub': b'xpub6DF8uhdarytz3FWdA8TvFSvvAh8dP3283MY7p2V4SeE2wyWmG5mg5EwVvmdMVCQcoNJxGoWaU9DCWh89LojfZ537wTfunKau47EL2dhHKon',
+        },
+        {
+            'path': [1, 0, hardened(2147483647), 1, hardened(2147483646)],
+            'xpub': b'xpub6ERApfZwUNrhLCkDtcHTcxd75RbzS1ed54G1LkBUHQVHQKqhMkhgbmJbZRkrgZw4koxb5JaHWkY4ALHY2grBGRjaDMzQLcgJvLJuZZvRcEL',
+        },
+        {
+            'path': [1, 0, hardened(2147483647), 1, hardened(2147483646), 2],
+            'xpub': b'xpub6FnCn6nSzZAw5Tw7cgR9bi15UV96gLZhjDstkXXxvCLsUXBGXPdSnLFbdpq8p9HmGsApME5hQTZ3emM2rnY5agb9rXpVGyy3bdW6EEgAtqt',
+        },
+        {
+            'path': [2],
+            'xpub': b'xpub661MyMwAqRbcEZVB4dScxMAdx6d4nFc9nvyvH3v4gJL378CSRZiYmhRoP7mBy6gSPSCYk6SzXPTf3ND1cZAceL7SfJ1Z3GC8vBgp2epUt13',
+        },
+        {
+            'path': [2, hardened(0)],
+            'xpub': b'xpub68NZiKmJWnxxS6aaHmn81bvJeTESw724CRDs6HbuccFQN9Ku14VQrADWgqbhhTHBaohPX4CjNLf9fq9MYo6oDaPPLPxSb7gwQN3ih19Zm4Y',
+        },
+        {
+            'path': [3],
+            'xpub': b'xpub661MyMwAqRbcGczjuMoRm6dXaLDEhW1u34gKenbeYqAix21mdUKJyuyu5F1rzYGVxyL6tmgBUAEPrEz92mBXjByMRiJdba9wpnN37RLLAXa',
+        },
+        {
+            'path': [3, hardened(0)],
+            'xpub': b'xpub69AUMk3qDBi3uW1sXgjCmVjJ2G6WQoYSnNHyzkmdCHEhSZ4tBok37xfFEqHd2AddP56Tqp4o56AePAgCjYdvpW2PU2jbUPFKsav5ut6Ch1m',
+        },
+        {
+            'path': [3, hardened(0), hardened(1)],
+            'xpub': b'xpub6BJA1jSqiukeaesWfxe6sNK9CCGaujFFSJLomWHprUL9DePQ4JDkM5d88n49sMGJxrhpjazuXYWdMf17C9T5XnxkopaeS7jGk1GyyVziaMt',
+        },
+    ]
+)
+def test_derive_node_bip(device, path):
+    resp = device.hd_derive_node(path['path'])
+    assert(resp == path['xpub'])
+
+@pytest.mark.parametrize(
+    "path", [
+        {
+            'path': [0],
+            'fingerprint': unhexlify('00000000'),
+            'chain': unhexlify('873dff81c02f525623fd1fe5167eac3a55a049de3d314bb42ee227ffed37d508'),
+            'public': unhexlify('0339a36013301597daef41fbe593a02cc513d0b55527ec2df1050e2e8ff49c85c2')
+        },
+        {
+            'path': [0, hardened(0)],
+            'fingerprint': unhexlify('3442193e'),
+            'chain': unhexlify('47fdacbd0f1097043b78c63c20c34ef4ed9a111d980047ad16282c7ae6236141'),
+            'public': unhexlify('035a784662a4a20a65bf6aab9ae98a6c068a81c52e4b032c0fb5400c706cfccc56')
+        },
+        {
+            'path': [0, hardened(0), 1],
+            'fingerprint': unhexlify('5c1bd648'),
+            'chain': unhexlify('2a7857631386ba23dacac34180dd1983734e444fdbf774041578e9b6adb37c19'),
+            'public': unhexlify('03501e454bf00751f24b1b489aa925215d66af2234e3891c3b21a52bedb3cd711c')
+        },
+        {
+            'path': [0, hardened(0), 1, hardened(2)],
+            'fingerprint': unhexlify('bef5a2f9'),
+            'chain': unhexlify('04466b9cc8e161e966409ca52986c584f07e9dc81f735db683c3ff6ec7b1503f'),
+            'public': unhexlify('0357bfe1e341d01c69fe5654309956cbea516822fba8a601743a012a7896ee8dc2')
+        },
+        {
+            'path': [0, hardened(0), 1, hardened(2), 2],
+            'fingerprint': unhexlify('ee7ab90c'),
+            'chain': unhexlify('cfb71883f01676f587d023cc53a35bc7f88f724b1f8c2892ac1275ac822a3edd'),
+            'public': unhexlify('02e8445082a72f29b75ca48748a914df60622a609cacfce8ed0e35804560741d29')
+        },
+        {
+            'path': [0, hardened(0), 1, hardened(2), 2, 1000000000],
+            'fingerprint': unhexlify('d880d7d8'),
+            'chain': unhexlify('c783e67b921d2beb8f6b389cc646d7263b4145701dadd2161548a8b078e65e9e'),
+            'public': unhexlify('022a471424da5e657499d1ff51cb43c47481a03b1e77f951fe64cec9f5a48f7011')
+        },
+        {
+            'path': [4],
+            'fingerprint': unhexlify('00000000'),
+            'chain': unhexlify('beeb672fe4621673f722f38529c07392fecaa61015c80c34f29ce8b41b3cb6ea'),
+            'public': unhexlify('0266874dc6ade47b3ecd096745ca09bcd29638dd52c2c12117b11ed3e458cfa9e8')
+        },
+        {
+            'path': [4, hardened(0)],
+            'fingerprint': unhexlify('be6105b5'),
+            'chain': unhexlify('3460cea53e6a6bb5fb391eeef3237ffd8724bf0a40e94943c98b83825342ee11'),
+            'public': unhexlify('0384610f5ecffe8fda089363a41f56a5c7ffc1d81b59a612d0d649b2d22355590c')
+        },
+        {
+            'path': [4, hardened(0), 1],
+            'fingerprint': unhexlify('9b02312f'),
+            'chain': unhexlify('4187afff1aafa8445010097fb99d23aee9f599450c7bd140b6826ac22ba21d0c'),
+            'public': unhexlify('03526c63f8d0b4bbbf9c80df553fe66742df4676b241dabefdef67733e070f6844')
+        },
+        {
+            'path': [4, hardened(0), 1, hardened(2)],
+            'fingerprint': unhexlify('b98005c1'),
+            'chain': unhexlify('98c7514f562e64e74170cc3cf304ee1ce54d6b6da4f880f313e8204c2a185318'),
+            'public': unhexlify('0359cf160040778a4b14c5f4d7b76e327ccc8c4a6086dd9451b7482b5a4972dda0')
+        },
+        {
+            'path': [4, hardened(0), 1, hardened(2), 2],
+            'fingerprint': unhexlify('0e9f3274'),
+            'chain': unhexlify('ba96f776a5c3907d7fd48bde5620ee374d4acfd540378476019eab70790c63a0'),
+            'public': unhexlify('029f871f4cb9e1c97f9f4de9ccd0d4a2f2a171110c61178f84430062230833ff20')
+        },
+        {
+            'path': [4, hardened(0), 1, hardened(2), 2, 1000000000],
+            'fingerprint': unhexlify('8b2b5c4b'),
+            'chain': unhexlify('b9b7b82d326bb9cb5b5b121066feea4eb93d5241103c9e7a18aad40f1dde8059'),
+            'public': unhexlify('02216cd26d31147f72427a453c443ed2cde8a1e53c9cc44e5ddf739725413fe3f4')
+        },
+        {
+            'path': [1],
+            'fingerprint': unhexlify('00000000'),
+            'chain': unhexlify('60499f801b896d83179a4374aeb7822aaeaceaa0db1f85ee3e904c4defbd9689'),
+            'public': unhexlify('03cbcaa9c98c877a26977d00825c956a238e8dddfbd322cce4f74b0b5bd6ace4a7')
+        },
+        {
+            'path': [1, 0],
+            'fingerprint': unhexlify('bd16bee5'),
+            'chain': unhexlify('f0909affaa7ee7abe5dd4e100598d4dc53cd709d5a5c2cac40e7412f232f7c9c'),
+            'public': unhexlify('02fc9e5af0ac8d9b3cecfe2a888e2117ba3d089d8585886c9c826b6b22a98d12ea')
+        },
+        {
+            'path': [1, 0, hardened(2147483647)],
+            'fingerprint': unhexlify('5a61ff8e'),
+            'chain': unhexlify('be17a268474a6bb9c61e1d720cf6215e2a88c5406c4aee7b38547f585c9a37d9'),
+            'public': unhexlify('03c01e7425647bdefa82b12d9bad5e3e6865bee0502694b94ca58b666abc0a5c3b')
+        },
+        {
+            'path': [1, 0, hardened(2147483647), 1],
+            'fingerprint': unhexlify('d8ab4937'),
+            'chain': unhexlify('f366f48f1ea9f2d1d3fe958c95ca84ea18e4c4ddb9366c336c927eb246fb38cb'),
+            'public': unhexlify('03a7d1d856deb74c508e05031f9895dab54626251b3806e16b4bd12e781a7df5b9')
+        },
+        {
+            'path': [1, 0, hardened(2147483647), 1, hardened(2147483646)],
+            'fingerprint': unhexlify('78412e3a'),
+            'chain': unhexlify('637807030d55d01f9a0cb3a7839515d796bd07706386a6eddf06cc29a65a0e29'),
+            'public': unhexlify('02d2b36900396c9282fa14628566582f206a5dd0bcc8d5e892611806cafb0301f0')
+        },
+        {
+            'path': [1, 0, hardened(2147483647), 1, hardened(2147483646), 2],
+            'fingerprint': unhexlify('31a507b8'),
+            'chain': unhexlify('9452b549be8cea3ecb7a84bec10dcfd94afe4d129ebfd3b3cb58eedf394ed271'),
+            'public': unhexlify('024d902e1a2fc7a8755ab5b694c575fce742c48d9ff192e63df5193e4c7afe1f9c')
+        },
+        {
+            'path': [5],
+            'fingerprint': unhexlify('00000000'),
+            'chain': unhexlify('96cd4465a9644e31528eda3592aa35eb39a9527769ce1855beafc1b81055e75d'),
+            'public': unhexlify('02c9e16154474b3ed5b38218bb0463e008f89ee03e62d22fdcc8014beab25b48fa')
+        },
+        {
+            'path': [5, 0],
+            'fingerprint': unhexlify('607f628f'),
+            'chain': unhexlify('84e9c258bb8557a40e0d041115b376dd55eda99c0042ce29e81ebe4efed9b86a'),
+            'public': unhexlify('039b6df4bece7b6c81e2adfeea4bcf5c8c8a6e40ea7ffa3cf6e8494c61a1fc82cc')
+        },
+        {
+            'path': [5, 0, hardened(2147483647)],
+            'fingerprint': unhexlify('946d2a54'),
+            'chain': unhexlify('f235b2bc5c04606ca9c30027a84f353acf4e4683edbd11f635d0dcc1cd106ea6'),
+            'public': unhexlify('02f89c5deb1cae4fedc9905f98ae6cbf6cbab120d8cb85d5bd9a91a72f4c068c76')
+        },
+        {
+            'path': [5, 0, hardened(2147483647), 1],
+            'fingerprint': unhexlify('218182d8'),
+            'chain': unhexlify('7c0b833106235e452eba79d2bdd58d4086e663bc8cc55e9773d2b5eeda313f3b'),
+            'public': unhexlify('03abe0ad54c97c1d654c1852dfdc32d6d3e487e75fa16f0fd6304b9ceae4220c64')
+        },
+        {
+            'path': [5, 0, hardened(2147483647), 1, hardened(2147483646)],
+            'fingerprint': unhexlify('931223e4'),
+            'chain': unhexlify('5794e616eadaf33413aa309318a26ee0fd5163b70466de7a4512fd4b1a5c9e6a'),
+            'public': unhexlify('03cb8cb067d248691808cd6b5a5a06b48e34ebac4d965cba33e6dc46fe13d9b933')
+        },
+        {
+            'path': [5, 0, hardened(2147483647), 1, hardened(2147483646), 2],
+            'fingerprint': unhexlify('956c4629'),
+            'chain': unhexlify('3bfb29ee8ac4484f09db09c2079b520ea5616df7820f071a20320366fbe226a7'),
+            'public': unhexlify('020ee02e18967237cf62672983b253ee62fa4dd431f8243bfeccdf39dbe181387f')
+        },
+        {
+            'path': [4],
+            'fingerprint': unhexlify('00000000'),
+            'chain': unhexlify('beeb672fe4621673f722f38529c07392fecaa61015c80c34f29ce8b41b3cb6ea'),
+            'public': unhexlify('0266874dc6ade47b3ecd096745ca09bcd29638dd52c2c12117b11ed3e458cfa9e8')
+        },
+        {
+            'path': [4, hardened(28578)],
+            'fingerprint': unhexlify('be6105b5'),
+            'chain': unhexlify('e94c8ebe30c2250a14713212f6449b20f3329105ea15b652ca5bdfc68f6c65c2'),
+            'public': unhexlify('02519b5554a4872e8c9c1c847115363051ec43e93400e030ba3c36b52a3e70a5b7')
+        },
+        {
+            'path': [4, hardened(28578), 33941],
+            'fingerprint': unhexlify('3e2b7bc6'),
+            'chain': unhexlify('9e87fe95031f14736774cd82f25fd885065cb7c358c1edf813c72af535e83071'),
+            'public': unhexlify('0235bfee614c0d5b2cae260000bb1d0d84b270099ad790022c1ae0b2e782efe120')
+        },
+        {
+            'path': [6],
+            'fingerprint': unhexlify('00000000'),
+            'chain': unhexlify('7762f9729fed06121fd13f326884c82f59aa95c57ac492ce8c9654e60efd130c'),
+            'public': unhexlify('0383619fadcde31063d8c5cb00dbfe1713f3e6fa169d8541a798752a1c1ca0cb20')
+        },
+    ]
+)
+def test_derive_node_xpub(device, path):
+    resp = device.hd_derive_node(path['path'])
+    xpub = PicoHSM.hd_decode_xpub(resp)
+    assert(xpub['fingerprint'] == path['fingerprint'])
+    assert(xpub['chain'] == path['chain'])
+    assert(xpub['public'] == path['public'])
+
+@pytest.mark.parametrize(
+    "path", [
+        {
+            'path': [7],
+            'fingerprint': unhexlify('00000000'),
+            'chain': unhexlify('8F8C33732530A0417DD446097EDB6F6617D52D627C6DB28581D74D11B385D25A'),
+            'public': unhexlify('dbf12b44133eaab506a740f6565cc117228cbf1dd70635cfa8ddfdc9af734756')
+        },
+        {
+            'path': [7, b"SLIP-0021"],
+            'fingerprint': unhexlify('0e521cdd'),
+            'chain': unhexlify('446ADED06078CF950DAB737F014C7BAE81EEB6E7BEECC260A38E2E0FA9973104'),
+            'public': unhexlify('1d065e3ac1bbe5c7fad32cf2305f7d709dc070d672044a19e610c77cdf33de0d')
+        },
+        {
+            'path': [7, b"SLIP-0021", b"Master encryption key"],
+            'fingerprint': unhexlify('4a6e721d'),
+            'chain': unhexlify('7072D5593032B84A90E2E2E42996D277026FF55C1082AC82A121D775FED0ACEB'),
+            'public': unhexlify('ea163130e35bbafdf5ddee97a17b39cef2be4b4f390180d65b54cf05c6a82fde')
+        },
+        {
+            'path': [7, b"SLIP-0021", b"Authentication key"],
+            'fingerprint': unhexlify('4a6e721d'),
+            'chain': unhexlify('3D5C87DC62CE006681B8C3DF723AE50FEEA40D6C26AEF8135BD321BA390A5B42'),
+            'public': unhexlify('47194e938ab24cc82bfa25f6486ed54bebe79c40ae2a5a32ea6db294d81861a6')
+        },
+    ]
+)
+def test_derive_node_slip(device, path):
+    resp = device.hd_derive_node(path['path'])
+    xpub = PicoHSM.hd_decode_xpub(resp)
+    assert(xpub['fingerprint'] == path['fingerprint'])
+    assert(xpub['chain'] == sha256_sha256(path['chain']))
+    assert(xpub['public'] == sha256_sha256(path['public']))
+
+def get_master_curve(mid):
+    for m in seeds:
+        if (m['id'] == mid):
+            if (m['name'] == 'secp256k1'):
+                return ec.SECP256K1()
+            elif (m['name'] == 'secp256r1'):
+                return ec.SECP256R1()
+    return None
+
+@pytest.mark.parametrize(
+    "path", [
+        [0],
+        [0, hardened(0)],
+        [0, hardened(0), 1],
+        [0, hardened(0), 1, hardened(2)],
+        [0, hardened(0), 1, hardened(2), 2],
+        [0, hardened(0), 1, hardened(2), 2, 1000000000],
+        [1],
+        [1, 0],
+        [1, 0, hardened(2147483647)],
+        [1, 0, hardened(2147483647), 1],
+        [1, 0, hardened(2147483647), 1, hardened(2147483646)],
+        [1, 0, hardened(2147483647), 1, hardened(2147483646), 2],
+        [4],
+        [4, hardened(0)],
+        [4, hardened(0), 1],
+        [4, hardened(0), 1, hardened(2)],
+        [4, hardened(0), 1, hardened(2), 2],
+        [4, hardened(0), 1, hardened(2), 2, 1000000000],
+        [5],
+        [5, 0],
+        [5, 0, hardened(2147483647)],
+        [5, 0, hardened(2147483647), 1],
+        [5, 0, hardened(2147483647), 1, hardened(2147483646)],
+        [5, 0, hardened(2147483647), 1, hardened(2147483646), 2],
+    ]
+)
+def test_signature(device, path):
+    pub = device.hd_derive_node(path)
+    xpub = PicoHSM.hd_decode_xpub(pub)
+    curve = get_master_curve(path[0])
+    pubkey = ec.EllipticCurvePublicKey.from_encoded_point(curve, xpub['public'])
+    resp = device.hd_signature(path, TEST_STRING)
+    pubkey.verify(resp, TEST_STRING, ec.ECDSA(hashes.SHA256()))
+
+@pytest.mark.parametrize(
+    "path", [
+        [7],
+        [7, b"SLIP-0021"],
+        [7, b"SLIP-0021", b"Master encryption key"],
+        [7, b"SLIP-0021", b"Authentication key"],
+    ]
+)
+def test_signature_slip(device, path):
+    pub = device.hd_derive_node(path)
+    with pytest.raises(APDUResponse) as e:
+        resp = device.hd_signature(path, TEST_STRING)
+    assert (e.value.sw == SWCodes.SW_CONDITIONS_NOT_SATISFIED)
+
+@pytest.mark.parametrize(
+    "ask_on_encrypt", [True, False]
+)
+@pytest.mark.parametrize(
+    "ask_on_decrypt", [True, False]
+)
+def test_cipher_slip(device, ask_on_encrypt, ask_on_decrypt):
+    MSG1 = b"testing message!"
+    enctext = device.hd_cipher([7, b"\x01", b"\x02"], b"test", MSG1, EncryptionMode.ENCRYPT, ask_on_encrypt, ask_on_decrypt)
+    resp = device.hd_cipher([7, b"\x01", b"\x02"], b"test", enctext, EncryptionMode.DECRYPT, ask_on_encrypt, ask_on_decrypt)
+    assert(resp == MSG1)

tests/run-test-in-docker.sh

@@ -0,0 +1,11 @@
+#!/bin/bash -eu
+
+source tests/docker_env.sh
+
+if [[ $1 == "pkcs11" ]]; then
+    run_in_docker ./tests/start-up-and-test-pkcs11.sh
+elif [[ $1 == "sc-hsm-pkcs11" ]]; then
+    run_in_docker ./tests/scripts/sc_hsm_test.sh
+else
+    run_in_docker ./tests/start-up-and-test.sh
+fi

tests/scripts/aes.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+source ./tests/scripts/func.sh
+reset
+test $? -eq 0 || exit $?
+
+TEST_DATA="This is a text."
+
+echo "${TEST_DATA}" > test
+
+sc_tool() {
+    pkcs11-tool --module /usr/local/lib/libsc-hsm-pkcs11.so -l --pin 648219 $@
+}
+
+aeses=("16" "24" "32")
+
+for aes in ${aeses[*]}; do
+    echo "  Test AES (AES:${aes})"
+    echo -n "    Keygen... "
+    sc_tool --keygen --key-type "AES:${aes}" --id 1 --label "AES:${aes}" > /dev/null 2>&1
+    test $? -eq 0 && echo -n "." || exit $?
+    e=$(sc_tool --list-object --type secrkey 2>&1)
+    test $? -eq 0 && echo -n "." || exit $?
+    grep -q "AES length ${aes}" <<< $e && echo -n "." || exit $?
+    grep -q "AES:${aes}" <<< $e && echo -e ".\t${OK}" || exit $?
+
+    echo -n "    Encryption..."
+    sc_tool --encrypt --id 1 --input-file test --mechanism aes-cbc > crypted.aes 2>/dev/null
+    test $? -eq 0 && echo -e ".\t${OK}" || exit $?
+
+    echo -n "    Decryption..."
+    e=$(sc_tool --decrypt --id 1 --input-file crypted.aes --mechanism aes-cbc 2>/dev/null)
+    test $? -eq 0 && echo -n "." || exit $?
+    grep -q "${TEST_DATA}" <<< $e && echo -e ".\t${OK}" || exit $?
+
+    sc_tool --delete --type secrkey --id 1 > /dev/null 2>&1
+done
+rm -rf test crypted.aes

tests/scripts/asym_cipher.sh

@@ -0,0 +1,62 @@
+#!/bin/bash
+
+source ./tests/scripts/func.sh
+reset
+test $? -eq 0 || exit $?
+
+rsa_encrypt_decrypt() {
+    openssl pkeyutl -encrypt -pubin -inkey 1.pub $2 -in $1 -out data.crypt
+    test $? -eq 0 && echo -n "." || exit $?
+    TDATA=$(tr -d '\0' < <(pkcs11-tool --id 1 --pin 648219 --decrypt $3 -i data.crypt 2>/dev/null))
+    test $? -eq 0 && echo -n "." || exit $?
+    if [[ ${TEST_STRING} != "$TDATA" ]]; then
+        exit 1
+    fi
+    test $? -eq 0 && echo -n "." || exit $?
+}
+
+TEST_STRING="This is a test string. Be safe, be secure."
+
+echo ${TEST_STRING} > data
+
+echo -n "  Keygen RSA 2048..."
+keygen_and_export rsa:2048
+test $? -eq 0 && echo -e ".\t${OK}" || exit $?
+
+echo -n "  Test RSA-PKCS ciphering..."
+rsa_encrypt_decrypt data "-pkeyopt rsa_padding_mode:pkcs1" "--mechanism RSA-PKCS"
+test $? -eq 0 && echo -e ".\t${OK}" || exit $?
+
+echo -n "  Test RSA-X-509 ciphering..."
+cp data data_pad
+tlen=${#TEST_STRING}
+dd if=/dev/zero bs=1 count=$((256-$tlen-1)) >> data_pad 2> /dev/null
+test $? -eq 0 && echo -n "." || exit $?
+rsa_encrypt_decrypt data_pad "-pkeyopt rsa_padding_mode:none" "--mechanism RSA-X-509"
+test $? -eq 0 && echo -e ".\t${OK}" || exit $?
+
+echo -n "  Test RSA-PKCS-OAEP ciphering..."
+rsa_encrypt_decrypt data "-pkeyopt rsa_padding_mode:oaep -pkeyopt rsa_oaep_md:sha256 -pkeyopt rsa_mgf1_md:sha256" "--mechanism RSA-PKCS-OAEP"
+test $? -eq 0 && echo -e ".\t${OK}" || exit $?
+
+rm -rf data* 1.*
+pkcs11-tool -l --pin 648219 --delete-object --type privkey --id 1 > /dev/null 2>&1
+
+algs=("secp192r1" "secp256r1" "secp384r1" "secp521r1" "brainpoolP256r1" "brainpoolP384r1" "brainpoolP512r1" "secp192k1" "secp256k1")
+for alg in ${algs[*]}; do
+    echo -n "  Test EC derive with ${alg}..."
+    keygen_and_export ec:${alg}
+    test $? -eq 0 && echo -n "." || exit $?
+    openssl ecparam -genkey -name ${alg} > bob.pem 2>/dev/null
+    test $? -eq 0 && echo -n "." || exit $?
+    openssl ec -in bob.pem -pubout -outform DER > bob.der 2>/dev/null
+    test $? -eq 0 && echo -n "." || exit $?
+    pkcs11-tool --pin 648219 --id 1 --derive -i bob.der -o mine-bob.der > /dev/null 2>&1
+    test $? -eq 0 && echo -n "." || exit $?
+    openssl pkeyutl -derive -out bob-mine.der -inkey bob.pem -peerkey 1.pub 2>/dev/null
+    test $? -eq 0 && echo -n "." || exit $?
+    cmp bob-mine.der mine-bob.der
+    test $? -eq 0 && echo -e ".\t${OK}" || exit $?
+    rm -rf data* 1.*
+    pkcs11-tool -l --pin 648219 --delete-object --type privkey --id 1 > /dev/null 2>&1
+done

tests/scripts/backup.sh

@@ -0,0 +1,60 @@
+#!/bin/bash
+
+source ./tests/scripts/func.sh
+reset
+test $? -eq 0 || exit $?
+
+sc_backup() {
+    for i in $(seq 1 $1); do
+        sc-hsm-tool --create-dkek-share dkek.${i}.pbe --password testpw > /dev/null 2>&1
+        test $? -eq 0 && echo -n "." || exit $?
+    done
+    sc-hsm-tool --initialize --so-pin 3537363231383830 --pin 648219 --dkek-shares $1 > /dev/null 2>&1
+    test $? -eq 0 && echo -n "." || exit $?
+    pkcs11-tool -l --pin 648219 -I > /dev/null 2>&1
+    test $? -eq 0 && echo -n "." || exit $?
+    for i in $(seq 1 $1); do
+        e=$(sc-hsm-tool --import-dkek-share dkek.${i}.pbe --password testpw 2>&1)
+        test $? -eq 0 && echo -n "." || exit $?
+        grep -q "DKEK share imported" <<< $e && echo -n "." || exit $?
+        grep -q "DKEK shares[[:blank:]]*: $1" <<< $e && echo -n "." || exit $?
+        if [[ $i -lt $1 ]]; then
+            grep -q "DKEK import pending, $(( $1 - $i ))" <<< $e && echo -n "." || exit $?
+        fi
+    done
+    # Store DKEK, since it is not logged in
+    pkcs11-tool -l --pin 648219 -I > /dev/null 2>&1
+    test $? -eq 0 && echo -n "." || exit $?
+}
+echo -n "  Test single DKEK..."
+sc_backup 1
+test $? -eq 0 && echo -e ".\t${OK}" || exit $?
+
+echo -n "  Test multiple DKEK..."
+sc_backup 3
+test $? -eq 0 && echo -e ".\t${OK}" || exit $?
+
+rm -rf dkek.*.pbe
+
+echo "  Test backup and restore"
+algs=("rsa:1024" "rsa:2048" "ec:secp192r1" "ec:secp256r1" "ec:secp384r1" "ec:secp521r1" "ec:brainpoolP256r1" "ec:brainpoolP384r1" "ec:brainpoolP512r1" "ec:secp192k1" "ec:secp256k1")
+for alg in ${algs[*]}; do
+    echo -n "    Keygen ${alg}..."
+    gen_and_check ${alg}
+    test $? -eq 0 && echo -e ".\t${OK}" || exit $?
+    echo -n "    Wrap key..."
+    sc-hsm-tool --wrap-key wrap-key.bin --key-reference 1 --pin 648219 > /dev/null 2>&1
+    test $? -eq 0 && echo -n "." || exit $?
+    e=$(pkcs15-tool -D 2>&1)
+    grep -q "Key ref[[:blank:]]*: 10" <<< $e && exit $? || echo -e ".\t${OK}"
+    echo -n "    Unwrap key..."
+    sc-hsm-tool --unwrap-key wrap-key.bin --key-reference 10 --pin 648219 --force > /dev/null 2>&1
+    test $? -eq 0 && echo -n "." || exit $?
+    e=$(pkcs15-tool -D 2>&1)
+    grep -q "Key ref[[:blank:]]*: 10" <<< $e && echo -e ".\t${OK}" || exit $?
+    echo -n "    Cleaning..."
+    pkcs11-tool -l --pin 648219 --delete-object --type privkey --id 1 > /dev/null 2>&1
+    test $? -eq 0 && echo -n "." || exit $?
+    pkcs11-tool -l --pin 648219 --delete-object --type privkey --id 1 > /dev/null 2>&1
+    test $? -eq 0 && echo -e ".\t${OK}" || exit $?
+done

tests/scripts/func.sh

@@ -0,0 +1,52 @@
+#!/bin/bash
+
+OK="\033[32mok\033[0m"
+FAIL="\033[31mfail\033[0m"
+
+gen_and_check() {
+    e=$(pkcs11-tool -l --pin 648219 --keypairgen --key-type $1 --id 1 --label "TestLabel" 2>&1)
+    test $? -eq 0 && echo -n "." || exit $?
+    glabel=""
+    case $1 in
+    *"192"*)
+        glabel="EC_POINT 192 bits"
+        ;;
+    *"256"*)
+        glabel="EC_POINT 256 bits"
+        ;;
+    *"384"*)
+        glabel="EC_POINT 384 bits"
+        ;;
+    *"512"*)
+        glabel="EC_POINT 512 bits"
+        ;;
+    *"521"*)
+        glabel="EC_POINT 528 bits"
+        ;;
+    *"rsa"*)
+        IFS=: read -r v1 bits <<< "$1"
+        glabel="RSA ${bits} bits"
+        ;;
+    esac
+    grep -q "${glabel}" <<< $e && echo -n "." || exit $?
+}
+gen_and_delete() {
+    gen_and_check $1
+    test $? -eq 0 && echo -n "." || exit $?
+    pkcs11-tool -l --pin 648219 --delete-object --type privkey --id 1 > /dev/null 2>&1
+    test $? -eq 0 && echo -n "." || exit $?
+}
+reset() {
+    python3 tools/pico-hsm-tool.py --pin 648219 initialize --so-pin 57621880 --silent > /dev/null 2>&1
+    test $? -eq 0 || exit $?
+}
+
+keygen_and_export() {
+    gen_and_check $1
+    test $? -eq 0 && echo -n "." || exit $?
+    pkcs11-tool --read-object --pin 648219 --id 1 --type pubkey > 1.der 2>/dev/null
+    test $? -eq 0 && echo -n "." || exit $?
+    IFS=: read -r mk bts <<< "$1"
+    openssl ${mk} -inform DER -outform PEM -in 1.der -pubin > 1.pub 2>/dev/null
+    test $? -eq 0 && echo -n "." || exit $?
+}

tests/scripts/initialize.sh

@@ -0,0 +1,49 @@
+#!/bin/bash
+
+source ./tests/scripts/func.sh
+reset
+
+# Change SO-PIN
+echo -n "  Test SO-PIN change..."
+pkcs11-tool --login --login-type so --so-pin 3537363231383830 --change-pin --new-pin 0123456789012345 > /dev/null 2>&1
+test $? -eq 0 && echo -n "." || exit $?
+
+pkcs11-tool --login --login-type so --so-pin 0123456789012345 --change-pin --new-pin 3537363231383830 > /dev/null 2>&1
+test $? -eq 0 && echo -e ".\t${OK}" || exit $?
+
+# Change PIN
+echo -n "  Test PIN change..."
+pkcs11-tool --login --pin 648219 --change-pin --new-pin 123456 > /dev/null 2>&1
+test $? -eq 0 && echo -e ".\t${OK}" || exit $?
+
+# Reset PIN
+echo -n "  Test PIN reset..."
+pkcs11-tool --login --login-type so --so-pin 3537363231383830 --init-pin --new-pin 648219 > /dev/null 2>&1
+test $? -eq 0 && echo -n "." || exit $?
+
+# Change PIN
+pkcs11-tool --login --pin 648219 --change-pin --new-pin 123456 > /dev/null 2>&1
+test $? -eq 0 && echo -n "." || exit $?
+
+pkcs11-tool --login --pin 123456 --change-pin --new-pin 648219 > /dev/null 2>&1
+test $? -eq 0 && echo -e ".\t${OK}" || exit $?
+
+# Wrong PIN (1st and 2nd PIN_INCORRECT, 3rd PIN_LOCKED)
+echo -n "  Test wrong PIN attempts..."
+e=$(pkcs11-tool --login --pin 123456 -I 2>&1)
+test $? -eq 1 && echo -n "." || exit $?
+grep -q CKR_PIN_INCORRECT <<< $e && echo -n "." || exit $?
+e=$(pkcs11-tool --login --pin 123456 -I 2>&1)
+test $? -eq 1 && echo -n "." || exit $?
+grep -q CKR_PIN_INCORRECT <<< $e && echo -n "." || exit $?
+e=$(pkcs11-tool --login --pin 123456 -I 2>&1)
+test $? -eq 1 && echo -n "." || exit $?
+grep -q CKR_PIN_LOCKED <<< $e && echo -e "\t${OK}" || exit $?
+
+# Reset PIN
+echo -n "  Test restore PIN..."
+pkcs11-tool --login --login-type so --so-pin 3537363231383830 --init-pin --new-pin 648219 > /dev/null 2>&1
+test $? -eq 0 && echo -n "." || exit $?
+
+pkcs11-tool --login --pin 648219 -I > /dev/null 2>&1
+test $? -eq 0 && echo -e "\t${OK}" || exit $?

tests/scripts/keygen.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+source ./tests/scripts/func.sh
+reset
+test $? -eq 0 || exit $?
+
+algs=("rsa:1024" "rsa:2048" "ec:secp192r1" "ec:secp256r1" "ec:secp384r1" "ec:secp521r1" "ec:brainpoolP256r1" "ec:brainpoolP384r1" "ec:brainpoolP512r1" "ec:secp192k1" "ec:secp256k1")
+for alg in ${algs[*]}; do
+    IFS=: read -r a s <<< "${alg}"
+    au=$(awk '{print toupper($0)}' <<<${a})
+    echo -n "  Test ${au} ${s}..."
+    gen_and_delete ${alg} && echo -e ".\t${OK}" || exit $?
+done

tests/scripts/pkcs11.sh

@@ -0,0 +1,58 @@
+#!/bin/bash
+
+source ./tests/scripts/func.sh
+echo "==== Test initialization ===="
+./tests/scripts/initialize.sh
+test $? -eq 0 || {
+    echo -e "\t${FAIL}"
+    exit 1
+}
+
+echo "==== Test keygen ===="
+./tests/scripts/keygen.sh
+test $? -eq 0 || {
+    echo -e "\t${FAIL}"
+    exit 1
+}
+
+echo "==== Test sign and verify ===="
+./tests/scripts/sign_and_verify.sh
+test $? -eq 0 || {
+    echo -e "\t${FAIL}"
+    exit 1
+}
+
+echo "==== Test asymmetric ciphering ===="
+./tests/scripts/asym_cipher.sh
+test $? -eq 0 || {
+    echo -e "\t${FAIL}"
+    exit 1
+}
+
+echo "==== Test binary storage ===="
+./tests/scripts/store_binary.sh
+test $? -eq 0 || {
+    echo -e "\t${FAIL}"
+    exit 1
+}
+
+echo "==== Test AES ===="
+./tests/scripts/aes.sh
+test $? -eq 0 || {
+    echo -e "\t${FAIL}"
+    exit 1
+}
+
+echo "==== Test PKCS11-tool ===="
+./tests/scripts/pkcs11_test.sh
+test $? -eq 0 || {
+    echo -e "\t${FAIL}"
+    exit 1
+}
+
+echo "==== Test backup and restore ===="
+./tests/scripts/backup.sh
+test $? -eq 0 || {
+    echo -e "\t${FAIL}"
+    exit 1
+}

tests/scripts/pkcs11_test.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+source ./tests/scripts/func.sh
+reset
+test $? -eq 0 || exit $?
+
+echo -n "  Test PKCS11 tool..."
+gen_and_check rsa:2048
+test $? -eq 0 && echo -n "." || exit $?
+e=$(pkcs11-tool --test -l --pin 648219 2>&1)
+test $? -eq 0 && echo -n "." || exit $?
+grep -q "No errors" <<< $e && echo -n "." || exit $?
+pkcs11-tool -l --pin 648219 --delete-object --type privkey --id 1 > /dev/null 2>&1
+test $? -eq 0 && echo -e ".\t${OK}" || exit $?
+#e=$(pkcs11-tool --test-ec -l --pin 648219 --id 1 --key-type ec:secp256r1 2>&1)
+#test $? -eq 0 && echo -n "." || exit $?
+#grep -q "==> OK" <<< $e && echo -e ".\t${OK}" || exit $?

tests/scripts/sc_hsm_test.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+source ./tests/startup.sh
+
+echo "==== Test SC HSM ===="
+echo -n "  Running sc-hsm-pkcs11-test..."
+pkcs11-tool -l --pin 648219 --keypairgen --key-type ec:secp256r1 --id 1 --label "TestLabel" > /dev/null 2>&1
+test $? -eq 0 && echo -n "." ||  {
+    echo -e "\t${FAIL}"
+    exit 1
+}
+e=$(/usr/local/bin/sc-hsm-pkcs11-test --module /usr/local/lib/libsc-hsm-pkcs11.so --pin 648219 --invasive 2>&1)
+test $? -eq 0 && echo -n "." || {
+    echo -e "\t${FAIL}"
+    exit 1
+}
+grep -q "338 tests performed" <<< $e && echo -n "." || {
+    echo -e "\t${FAIL}"
+    exit 1
+}
+grep -q "0 tests failed" <<< $e && echo -e ".\t${OK}" || {
+    echo -e "\t${FAIL}"
+    exit 1
+}

tests/scripts/sign_and_verify.sh

@@ -0,0 +1,126 @@
+#!/bin/bash
+
+source ./tests/scripts/func.sh
+reset
+test $? -eq 0 || exit $?
+
+TEST_DATA="This is a test string. Be safe, be secure."
+echo ${TEST_DATA}  > data
+
+create_dgst() {
+    openssl dgst -$1 -binary -out data.$1 data > /dev/null 2>&1
+    test $? -eq 0 && echo -n "." || exit $?
+}
+
+dgsts=("sha256" "sha384" "sha512")
+for dgst in ${dgsts[*]}; do
+    echo -n "  Create digest ${dgst}..."
+    create_dgst ${dgst}
+    test $? -eq 0 && echo -e ".\t${OK}" || exit $?
+done
+
+# $1 sign mechanism
+# $2 sign input file
+# $3 sign parameters
+# $4 vrfy input file
+# $5 vrfy parameters
+sign_and_verify() {
+    pkcs11-tool --id 1 --sign --pin 648219 --mechanism $1 -i $2 -o data.sig $3 > /dev/null 2>&1
+    test $? -eq 0 && echo -n "." || exit $?
+    e=$(openssl pkeyutl -verify -pubin -inkey 1.pub -in $4 -sigfile data.sig $5 2>&1)
+    test $? -eq 0 && echo -n "." || exit $?
+    grep -q "Signature Verified Successfully" <<< $e && echo -n "." || exit $?
+}
+
+sign_and_verify_rsa_pkcs() {
+    dgstl=$(awk '{print tolower($0)}' <<<$1)
+    dgstu=$(awk '{print toupper($0)}' <<<$1)
+    sign_and_verify "${dgstu}-RSA-PKCS" data "" data.${dgstl} "-pkeyopt digest:${dgstl}"
+    test $? -eq 0 && echo -n "." || exit $?
+}
+
+sign_and_verify_rsa_pss() {
+    dgstl=$(awk '{print tolower($0)}' <<<$1)
+    dgstu=$(awk '{print toupper($0)}' <<<$1)
+    sign_and_verify "RSA-PKCS-PSS" data.${dgstl} "--mgf MGF1-${dgstu} --hash-algorithm ${dgstu}" data.${dgstl} "-pkeyopt rsa_padding_mode:pss -pkeyopt rsa_pss_saltlen:-1 -pkeyopt digest:${dgstl}"
+    test $? -eq 0 && echo -n "." || exit $?
+}
+
+sign_and_verify_rsa_pss_dgst() {
+    dgstl=$(awk '{print tolower($0)}' <<<$1)
+    dgstu=$(awk '{print toupper($0)}' <<<$1)
+    sign_and_verify "${dgstu}-RSA-PKCS-PSS" data "" data.${dgstl} "-pkeyopt rsa_padding_mode:pss -pkeyopt rsa_pss_saltlen:-1 -pkeyopt digest:${dgstl}"
+    test $? -eq 0 && echo -n "." || exit $?
+}
+
+keygen_sign_and_verify_ec() {
+    echo "  Test ECDSA with $1"
+    echo -n "    Keygen $1..."
+    keygen_and_export $1
+    test $? -eq 0 && echo -e ".\t${OK}" || exit $?
+    for dgst in ${dgsts[*]}; do
+        dgstu=$(awk '{print toupper($0)}' <<<${dgst})
+        echo -n "    Test ECDSA with ${dgst} and $1..."
+        sign_and_verify ECDSA "data.${dgst}" "--signature-format openssl" data.${dgst}
+        test $? -eq 0 && echo -e ".\t${OK}" || exit $?
+        echo -n "    Test ECDSA-${dgstu} with $1..."
+        sign_and_verify "ECDSA-${dgstu}" data "--signature-format openssl" data.${dgst}
+        test $? -eq 0 && echo -e ".\t${OK}" || exit $?
+    done
+    echo -n "    Delete $1..."
+    pkcs11-tool -l --pin 648219 --delete-object --type privkey --id 1 > /dev/null 2>&1
+    test $? -eq 0 && echo -e ".\t${OK}" || exit $?
+}
+
+algs=("ec:secp192r1" "ec:secp256r1" "ec:secp384r1" "ec:secp521r1" "ec:brainpoolP256r1" "ec:brainpoolP384r1" "ec:brainpoolP512r1" "ec:secp192k1" "ec:secp256k1")
+for alg in ${algs[*]}; do
+    keygen_sign_and_verify_ec ${alg} || exit $?
+done
+
+echo "  Test RSA PKCS"
+echo -n "    Keygen rsa:2048..."
+keygen_and_export "rsa:2048"
+test $? -eq 0 && echo -e ".\t${OK}" || exit $?
+
+echo -n "    Test RSA-PKCS..."
+pkcs11-tool --id 1 --sign --pin 648219 --mechanism RSA-PKCS -i data -o data.sig > /dev/null 2>&1
+test $? -eq 0 && echo -n "." || exit $?
+e=$(openssl pkeyutl -verify -pubin -inkey 1.pub -in data -sigfile data.sig 2>&1)
+test $? -eq 0 && echo -n "." || exit $?
+grep -q "Signature Verified Successfully" <<< $e && echo -e ".\t${OK}" || exit $?
+
+for dgst in ${dgsts[*]}; do
+    dgstu=$(awk '{print toupper($0)}' <<<${dgst})
+    echo -n "    Test RSA-PKCS-${dgstu}..."
+    sign_and_verify_rsa_pkcs ${dgst}
+    test $? -eq 0 && echo -e ".\t${OK}" || exit $?
+done
+
+echo -n "    Test RSA-X-509..."
+cp data data_pad
+test $? -eq 0 && echo -n "." || exit $?
+tlen=${#TEST_DATA}
+dd if=/dev/zero bs=1 count=$((256-$tlen)) >> data_pad > /dev/null 2>&1
+test $? -eq 0 && echo -n "." || exit $?
+pkcs11-tool --id 1 --sign --pin 648219 --mechanism RSA-X-509 -i data_pad -o data.sig > /dev/null 2>&1
+test $? -eq 0 && echo -n "." || exit $?
+TDATA=$(tr -d '\0' < <(openssl rsautl -verify -inkey 1.pub -in data.sig -pubin -raw 2>/dev/null))
+if [[ ${TEST_DATA} != "$TDATA" ]]; then
+    exit 1
+fi
+test $? -eq 0 && echo -e ".\t${OK}" || exit $?
+
+for dgst in ${dgsts[*]}; do
+    dgstu=$(awk '{print toupper($0)}' <<<${dgst})
+    if [[ "${dgst}" != "sha1" ]]; then
+        echo -n "    Test RSA-PKCS-PSS with ${dgst}..."
+        sign_and_verify_rsa_pss ${dgst}
+        test $? -eq 0 && echo -e ".\t${OK}" || exit $?
+    fi
+    echo -n "    Test ${dgstu}-RSA-PKCS-PSS..."
+    sign_and_verify_rsa_pss_dgst ${dgst}
+    test $? -eq 0 && echo -e ".\t${OK}" || exit $?
+done
+
+rm -rf data* 1.*
+pkcs11-tool -l --pin 648219 --delete-object --type privkey --id 1 > /dev/null 2>&1

tests/scripts/store_binary.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+
+source ./tests/scripts/func.sh
+reset
+test $? -eq 0 || exit $?
+
+TEST_DATA="Pico HSM is awesome!"
+
+echo ${TEST_DATA} > test
+
+echo -n "  Test public binary storage..."
+pkcs11-tool --pin 648219 --write-object test --type data --id 1 --label 'test1' > /dev/null 2>&1
+test $? -eq 0 && echo -n "." || exit $?
+e=$(pkcs11-tool --read-object --type data --label 'test1' 2>&1)
+test $? -eq 0 && echo -n "." || exit $?
+grep -q "${TEST_DATA}" <<< $e && echo -e ".\t${OK}" || exit $?
+pkcs11-tool --pin 648219 --delete-object --type data --label 'test1' > /dev/null 2>&1
+
+echo -n "  Test private binary storage..."
+pkcs11-tool --pin 648219 --write-object test --type data --id 1 --label 'test1' --private > /dev/null 2>&1
+test $? -eq 0 && echo -n "." || exit $?
+e=$(pkcs11-tool --read-object --type data --label 'test1' --pin 648219 2>&1)
+test $? -eq 0 && echo -n "." || exit $?
+grep -q "${TEST_DATA}" <<< $e && echo -n "." || exit $?
+e=$(pkcs11-tool --read-object --type data --label 'test1' 2>&1)
+test $? -eq 1 && echo -n "." || exit $?
+grep -q "error: object not found" <<< $e && echo -e ".\t${OK}" || exit $?
+pkcs11-tool --pin 648219 --delete-object --type data --label 'test1' > /dev/null 2>&1

tests/start-up-and-test-pkcs11.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+source ./tests/startup.sh
+
+chmod a+x tests/scripts/*.sh
+
+echo "======== PKCS11 Test suite ========"
+./tests/scripts/pkcs11.sh

tests/start-up-and-test.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+source ./tests/startup.sh
+
+pytest tests -W ignore::DeprecationWarning

tests/startup.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+OK="\t\033[32mok\033[0m"
+FAIL="\t\033[31mfail\033[0m"
+
+fail() {
+    echo -e "${FAIL}"
+    exit 1
+}
+
+echo -n "Start PCSC..."
+/usr/sbin/pcscd &
+test $? -eq 0 && echo -e "${OK}" || {
+    echo -e "${FAIL}"
+    exit 1
+}
+sleep 2
+rm -f memory.flash
+tar -xf tests/memory.tar.gz
+echo -n "Start Pico HSM..."
+/pico_hsm > /dev/null 2>&1 &
+test $? -eq 0 && echo -n "." || fail
+sleep 2
+ATR="3b:fe:18:00:00:81:31:fe:45:80:31:81:54:48:53:4d:31:73:80:21:40:81:07:fa"
+e=$(opensc-tool -an 2>&1)
+grep -q "${ATR}" <<< $e && echo -n "." || fail
+test $? -eq 0 && echo -e "${OK}" || fail

tools/pico-hsm-patch-vidpid.sh

@@ -17,8 +17,8 @@
 # along with this program. If not, see <http://www.gnu.org/licenses/>.
 #
 
-VERSION_MAJOR="3" #Version of Pico CCID Core
-VERSION_MINOR="4"
+VERSION_MAJOR="6" #Version of Pico Keys SDK
+VERSION_MINOR="0"
 
 echo "----------------------------"
 echo "VID/PID patcher for Pico HSM"

tools/pico-hsm-tool.py

@@ -19,61 +19,60 @@
  */
 """
 
-from smartcard.CardType import AnyCardType
-from smartcard.CardRequest import CardRequest
-from smartcard.Exceptions import CardRequestTimeoutException
-from cvc.certificates import CVC
-from cvc.asn1 import ASN1
-from cvc.oid import oid2scheme
-from cvc.utils import scheme_rsa
-from cryptography.hazmat.primitives.asymmetric import ec
+import sys
+try:
+    from cvc.certificates import CVC
+    from cvc.oid import oid2scheme
+    from cvc.utils import scheme_rsa
+except ModuleNotFoundError:
+    print('ERROR: cvc module not found! Install pycvc package.\nTry with `pip install pycvc`')
+    sys.exit(-1)
+
+try:
+    from cryptography.hazmat.primitives.asymmetric import ec
+    from cryptography.hazmat.primitives.kdf.hkdf import HKDF
+    from cryptography.hazmat.primitives.serialization import Encoding, PublicFormat
+    from cryptography.hazmat.primitives.ciphers.aead import ChaCha20Poly1305
+    from cryptography.hazmat.primitives import hashes
+except ModuleNotFoundError:
+    print('ERROR: cryptography module not found! Install cryptography package.\nTry with `pip install cryptography`')
+    sys.exit(-1)
+
+try:
+    from picohsm import PicoHSM, PinType, DOPrefixes, KeyType, EncryptionMode, utils, APDUResponse, SWCodes, AES
+except ModuleNotFoundError:
+    print('ERROR: picohsm module not found! Install picohsm package.\nTry with `pip install pypicohsm`')
+    sys.exit(-1)
+
 import json
 import urllib.request
 import base64
-from binascii import hexlify
+from binascii import hexlify, unhexlify
 import sys
 import argparse
 import os
+import platform
 from datetime import datetime
 from argparse import RawTextHelpFormatter
 
-class APDUResponse(Exception):
-    def __init__(self, sw1, sw2):
-        self.sw1 = sw1
-        self.sw2 = sw2
-        super().__init__(f'SW:{sw1:02X}{sw2:02X}')
+pin = None
 
-
-def send_apdu(card, command, p1, p2, data=None):
-    lc = []
-    dataf = []
-    if (data):
-        lc = [0x00] + list(len(data).to_bytes(2, 'big'))
-        dataf = data
-    le = [0x00, 0x00]
-    if (isinstance(command, list) and len(command) > 1):
-        apdu = command
-    else:
-        apdu = [0x00, command]
-
-    apdu = apdu + [p1, p2] + lc + dataf + le
-    response, sw1, sw2 = card.connection.transmit(apdu)
-    if (sw1 != 0x90):
-        raise APDUResponse(sw1, sw2)
-    return response
+def hexy(a):
+    return [hex(i) for i in a]
 
 def parse_args():
     parser = argparse.ArgumentParser()
-    subparser = parser.add_subparsers(title="commands", dest="command")
+    subparser = parser.add_subparsers(title="commands", dest="command", required=True)
     parser_init = subparser.add_parser('initialize', help='Performs the first initialization of the Pico HSM.')
-    parser_init.add_argument('--pin', help='PIN number')
+    parser.add_argument('--pin', help='PIN number')
     parser_init.add_argument('--so-pin', help='SO-PIN number')
+    parser_init.add_argument('--silent', help='Confirms initialization silently.', action='store_true')
 
     parser_attestate = subparser.add_parser('attestate', help='Generates an attestation report for a private key and verifies the private key was generated in the devices or outside.')
     parser_attestate.add_argument('-k', '--key', help='The private key index', metavar='KEY_ID')
 
     parser_pki = subparser.add_parser('pki', help='Performs PKI operations.')
-    subparser_pki = parser_pki.add_subparsers(title='commands', dest='subcommand')
+    subparser_pki = parser_pki.add_subparsers(title='commands', dest='subcommand', required=True)
     parser_pki_init = subparser_pki.add_parser('initialize', help='Initializes the Public Key Infrastructure (PKI)')
 
     parser_pki_init.add_argument('--certs-dir', help='Store the PKI certificates into this directory.', default='certs')
@@ -81,12 +80,60 @@ def parse_args():
     parser_pki_init.add_argument('--force', help='Forces the download of certificates.', action='store_true')
 
     parser_rtc = subparser.add_parser('datetime', help='Datetime operations with the integrated Real Time Clock (RTC).')
-    parser_rtc.add_argument('subcommand', choices=['set', 'get'], help='Sets or gets current datetime.')
+    subparser_rtc = parser_rtc.add_subparsers(title='commands', dest='subcommand', required=True)
+    parser_rtc_set = subparser_rtc.add_parser('set', help='Sets the current datetime.')
+    parser_rtc_get = subparser_rtc.add_parser('get', help='Gets the current datetime.')
 
     parser_opts = subparser.add_parser('options', help='Manage extra options.', formatter_class=RawTextHelpFormatter)
-    parser_opts.add_argument('subcommand', choices=['set', 'get'], help='Sets or gets option OPT.')
-    parser_opts.add_argument('opt', choices=['button', 'counter'], help='Button: press-to-confirm button.\nCounter: every generated key has an internal counter.')
-    parser_opts.add_argument('onoff', choices=['on', 'off'], help='Toggles state ON or OFF', metavar='ON/OFF', nargs='?')
+    subparser_opts = parser_opts.add_subparsers(title='commands', dest='subcommand', required=True)
+    parser_opts_set = subparser_opts.add_parser('set', help='Sets option OPT.')
+    parser_opts_get = subparser_opts.add_parser('get', help='Gets option OPT.')
+    parser_opts.add_argument('opt', choices=['button', 'counter'], help='button: press-to-confirm button.\ncounter: every generated key has an internal counter.', metavar='OPT')
+    parser_opts_set.add_argument('onoff', choices=['on', 'off'], help='Toggles state ON or OFF', metavar='ON/OFF', nargs='?')
+
+    parser_phy = subparser.add_parser('phy', help='Set PHY options.')
+    subparser_phy = parser_phy.add_subparsers(title='commands', dest='subcommand', required=True)
+    parser_phy_vp = subparser_phy.add_parser('vidpid', help='Sets VID/PID. Use VID:PID format (e.g. 1234:5678)')
+    parser_phy_ledn = subparser_phy.add_parser('led', help='Sets LED GPIO number.')
+    parser_phy_optwcid = subparser_phy.add_parser('wcid', help='Enable/Disable Web CCID interface.')
+    parser_phy_vp.add_argument('value', help='Value of the PHY option.', metavar='VAL', nargs='?')
+    parser_phy_ledn.add_argument('value', help='Value of the PHY option.', metavar='VAL', nargs='?')
+    parser_phy_optwcid.add_argument('value', choices=['enable', 'disable'], help='Enable/Disable Web CCID interface.', nargs='?')
+
+    parser_secure = subparser.add_parser('secure', help='Manages security of Pico HSM.')
+    subparser_secure = parser_secure.add_subparsers(title='commands', dest='subcommand', required=True)
+    parser_opts_enable = subparser_secure.add_parser('enable', help='Enables secure lock.')
+    parser_opts_unlock = subparser_secure.add_parser('unlock', help='Unlocks the secure lock.')
+    parser_opts_disable = subparser_secure.add_parser('disable', help='Disables secure lock.')
+
+    parser_cipher = subparser.add_parser('cipher', help='Implements extended symmetric ciphering with new algorithms and options.\n\tIf no file input/output is specified, stdin/stdout will be used.')
+    subparser_cipher = parser_cipher.add_subparsers(title='commands', dest='subcommand', required=True)
+    parser_cipher_encrypt = subparser_cipher.add_parser('encrypt', help='Performs encryption.')
+    parser_cipher_decrypt = subparser_cipher.add_parser('decrypt', help='Performs decryption.')
+    parser_cipher_hmac = subparser_cipher.add_parser('mac', help='Computes MAC (HMAC or CMAC).')
+    parser_cipher_kdf = subparser_cipher.add_parser('kdf', help='Performs key derivation function on a secret key.')
+    parser_cipher_encrypt.add_argument('--alg', choices=['CHACHAPOLY','AES-ECB','AES-CBC','AES-OFB','AES-CFB','AES-GCM','AES-CCM','AES-CTR','AES-XTS'], required=True)
+    parser_cipher_decrypt.add_argument('--alg', choices=['CHACHAPOLY','AES-ECB','AES-CBC','AES-OFB','AES-CFB','AES-GCM','AES-CCM','AES-CTR','AES-XTS'], required=True)
+
+    parser_cipher_hmac.add_argument('--alg', choices=['CMAC', 'HMAC-SHA1', 'HMAC-SHA224', 'HMAC-SHA256', 'HMAC-SHA384', 'HMAC-SHA512'], help='Selects the algorithm.', required=True)
+    parser_cipher_kdf.add_argument('--alg', choices=['HKDF-SHA256', 'HKDF-SHA384', 'HKDF-SHA512', 'PBKDF2-SHA1', 'PBKDF2-SHA224', 'PBKDF2-SHA256', 'PBKDF2-SHA384', 'PBKDF2-SHA512', 'X963-SHA1', 'X963-SHA224', 'X963-SHA256', 'X963-SHA384', 'X963-SHA512'], help='Selects the algorithm.', required=True)
+    parser_cipher_kdf.add_argument('--output-len', help='Specifies the output length of derived material.')
+    parser_cipher_kdf.add_argument('--iteration', help='Iteration count.', required=any(['PBKDF2' in s for s in sys.argv]))
+
+    parser_cipher.add_argument('--iv', help='Sets the IV/nonce (hex string).')
+    parser_cipher.add_argument('--file-in', help='File to encrypt or decrypt.')
+    parser_cipher.add_argument('--file-out', help='File to write the result.')
+    parser_cipher.add_argument('--aad', help='Specifies the authentication data (it can be a string or hex string. Combine with --hex if necesary).')
+    parser_cipher.add_argument('--hex', help='Parses the AAD parameter as a hex string (for binary data).', action='store_true')
+    parser_cipher.add_argument('-k', '--key', help='The private key index', metavar='KEY_ID', required=all(['keygen' not in s for s in sys.argv]))
+    parser_cipher.add_argument('-s', '--key-size', default=32, help='Size of the key in bytes.')
+
+    parser_keygen = subparser.add_parser('keygen', help='Generates private keypair or secret key.')
+    subparser_keygen = parser_keygen.add_subparsers(title='commands', dest='subcommand', required=True)
+    parser_keygen_aes = subparser_keygen.add_parser('aes', help='Generates an AES key.')
+    parser_keygen_aes.add_argument('--size', help='Specifies the size of AES key [128, 192 or 256]',choices=[128, 192, 256], default=128)
+    parser_keygen_x25519 = subparser_keygen.add_parser('x25519', help='Generates a private X25519 keypair.')
+    parser_keygen_x448 = subparser_keygen.add_parser('x448', help='Generates a private X448 keypair.')
 
     args = parser.parse_args()
     return args
@@ -97,7 +144,7 @@ def get_pki_data(url, data=None, method='GET'):
     method = 'GET'
     if (data is not None):
         method = 'POST'
-    req = urllib.request.Request(f"https://www.henarejos.me/pico/pico-hsm/{url}/",
+    req = urllib.request.Request(f"https://www.picokeys.com/pico/pico-hsm/{url}/",
                                 method=method,
                                 data=data,
                                 headers={'User-Agent': user_agent, })
@@ -120,47 +167,44 @@ def get_pki_certs(certs_dir='certs', force=False):
             f.write(base64.urlsafe_b64decode(certs['dvca']['cert']))
     print(f'All PKI certificates are stored at {certs_dir} folder')
 
-def pki(card, args):
+def pki(_, args):
     if (args.subcommand == 'initialize'):
         if (args.default is True):
             get_pki_certs(certs_dir=args.certs_dir, force=args.force)
         else:
             print('Error: no PKI is passed. Use --default to retrieve default PKI.')
 
-def initialize(card, args):
-    print('********************************')
-    print('*   PLEASE READ IT CAREFULLY   *')
-    print('********************************')
-    print('')
-    print('This tool will erase and reset your device. It will delete all '
-        'private and secret keys.')
-    print('Are you sure?')
-    _ = input('[Press enter to confirm]')
+def initialize(picohsm, args):
+    if (not args.silent):
+        print('********************************')
+        print('*   PLEASE READ IT CAREFULLY   *')
+        print('********************************')
+        print('')
+        print('This tool will erase and reset your device. It will delete all '
+            'private and secret keys.')
+        print('Are you sure?')
+        _ = input('[Press enter to confirm]')
 
-    send_apdu(card, 0xA4, 0x04, 0x00, [0xE8, 0x2B, 0x06, 0x01, 0x04, 0x01, 0x81, 0xC3, 0x1F, 0x02, 0x01])
     if (args.pin):
-        pin = args.pin.encode()
         try:
-            response = send_apdu(card, 0x20, 0x00, 0x81, list(pin))
+            picohsm.login(args.pin)
         except APDUResponse:
             pass
+        pin = args.pin
     else:
-            pin = b'648219'
+        pin = '648219'
+
     if (args.so_pin):
-        so_pin = args.so_pin.encode()
         try:
-            response = send_apdu(card, 0x20, 0x00, 0x82, list(so_pin))
+            picohsm.login(args.so_pin, who=PinType.SO_PIN)
         except APDUResponse:
             pass
+        so_pin = args.so_pin
     else:
-            so_pin = b'57621880'
+        so_pin = '57621880'
 
-    pin_data = [0x81, len(pin)] + list(pin)
-    so_pin_data = [0x82, len(so_pin)] + list(so_pin)
-    reset_data = [0x80, 0x02, 0x00, 0x01] + pin_data + so_pin_data + [0x91, 0x01, 0x03]
-    response = send_apdu(card, [0x80, 0x50], 0x00, 0x00, reset_data)
-
-    response = send_apdu(card, 0xB1, 0xCE, 0x00, [0x54, 0x02, 0x00, 0x00])
+    picohsm.initialize(pin=pin, sopin=so_pin)
+    response = picohsm.get_contents(DOPrefixes.EE_CERTIFICATE_PREFIX, 0x00)
 
     cert = bytearray(response)
     Y = CVC().decode(cert).pubkey().find(0x86).data()
@@ -171,14 +215,10 @@ def initialize(card, args):
     j = get_pki_data('cvc', data=data)
     print('Device name: '+j['devname'])
     dataef = base64.urlsafe_b64decode(
-        j['cvcert']) + base64.urlsafe_b64decode(j['dvcert'])
+        j['cvcert']) + base64.urlsafe_b64decode(j['dvcert']) + base64.urlsafe_b64decode(j['cacert'])
 
-    response = send_apdu(card, 0xa4, 0x00, 0x00, [0x2f, 0x02])
-    response = send_apdu(card, 0x20, 0x00, 0x81, list(pin))
-
-    apdu_data = [0x54, 0x02, 0x00, 0x00] + \
-        list(ASN1.make_tag(0x53, dataef))
-    response = send_apdu(card, 0xd7, 0x00, 0x00, apdu_data)
+    picohsm.select_file(0x2f02)
+    response = picohsm.put_contents(0x0000, data=dataef)
 
     print('Certificate uploaded successfully!')
     print('')
@@ -187,23 +227,12 @@ def initialize(card, args):
     print('Now you can initialize the device as usual with your chosen PIN '
         'and configuration options.')
 
-def attestate(card, args):
+def attestate(picohsm, args):
     kid = int(args.key)
-    try:
-        response = send_apdu(card, 0xB1, 0x2F, 0x02, [0x54, 0x02, 0x00, 0x00])
-    except APDUResponse as a:
-        print('ERROR: There is an error with the device certificate.')
-        sys.exit(1)
+    termca = picohsm.get_termca()
+    devcert = termca['cv']['data']
+    cert = picohsm.get_contents(0xCE, kid)
 
-    devcert = ASN1().decode(response).find(0x7f21, pos=0).data(return_tag=True)
-
-    try:
-        cert = send_apdu(card, 0xB1, 0xCE, kid, [0x54, 0x02, 0x00, 0x00])
-    except APDUResponse as a:
-        if (a.sw1 == 0x6a and a.sw2 == 0x82):
-            print('ERROR: Key not found')
-            sys.exit(1)
-    from binascii import hexlify
     print(hexlify(bytearray(cert)))
     print(f'Details of key {kid}:\n')
     print(f'  CAR: {(CVC().decode(cert).car()).decode()}')
@@ -241,60 +270,236 @@ def attestate(card, args):
     else:
         print(f'Key {kid} is NOT generated by device {chr.decode()}')
 
-def rtc(card, args):
+def rtc(picohsm, args):
     if (args.subcommand == 'set'):
         now = datetime.now()
-        _ = send_apdu(card, [0x80, 0x64], 0x0A, 0x00, list(now.year.to_bytes(2, 'big')) + [now.month, now.day, now.weekday(), now.hour, now.minute, now.second ])
+        _ = picohsm.send(cla=0x80, command=0x64, p1=0x0A, data=list(now.year.to_bytes(2, 'big')) + [now.month, now.day, now.weekday(), now.hour, now.minute, now.second ])
     elif (args.subcommand == 'get'):
-        response = send_apdu(card, [0x80, 0x64], 0x0A, 0x00)
+        response = picohsm.send(cla=0x80, command=0x64, p1=0x0A)
         dt = datetime(int.from_bytes(response[:2], 'big'), response[2], response[3], response[5], response[6], response[7])
         print(f'Current date and time is: {dt.ctime()}')
 
-def opts(card, args):
+def opts(picohsm, args):
     opt = 0x0
     if (args.opt == 'button'):
         opt = 0x1
     elif (args.opt == 'counter'):
         opt = 0x2
-    current = send_apdu(card, [0x80, 0x64], 0x6, 0x0)[0]
+    current = picohsm.send(cla=0x80, command=0x64, p1=0x6)[0]
     if (args.subcommand == 'set'):
         if (args.onoff == 'on'):
             newopt = current | opt
         else:
             newopt = current & ~opt
-        send_apdu(card, [0x80, 0x64], 0x6, 0x0, [newopt])
+        picohsm.send(cla=0x80, command=0x64, p1=0x6, data=[newopt])
     elif (args.subcommand == 'get'):
         print(f'Option {args.opt.upper()} is {"ON" if current & opt else "OFF"}')
 
+class SecureLock:
+    def __init__(self, picohsm):
+        self.picohsm = picohsm
+
+    def mse(self):
+        sk = ec.generate_private_key(ec.SECP256R1())
+        pn = sk.public_key().public_numbers()
+        self.__pb = sk.public_key().public_bytes(Encoding.X962, PublicFormat.UncompressedPoint)
+
+        ret = self.picohsm.send(cla=0x80, command=0x64, p1=0x3A, p2=0x01, data=list(self.__pb))
+
+        pk = ec.EllipticCurvePublicKey.from_encoded_point(ec.SECP256R1(), bytes(ret))
+        shared_key = sk.exchange(ec.ECDH(), pk)
+
+        xkdf = HKDF(
+            algorithm=hashes.SHA256(),
+            length=12+32,
+            salt=None,
+            info=self.__pb
+        )
+        kdf_out = xkdf.derive(shared_key)
+        self.__key_enc = kdf_out[12:]
+        self.__iv = kdf_out[:12]
+
+    def encrypt_chacha(self, data):
+        chacha = ChaCha20Poly1305(self.__key_enc)
+        ct = chacha.encrypt(self.__iv, data, self.__pb)
+        return ct
+
+    def unlock_device(self):
+        ct = self.get_skey()
+        self.picohsm.send(cla=0x80, command=0x64, p1=0x3A, p2=0x03, data=list(ct))
+
+    def _get_key_device(self):
+        if (platform.system() == 'Windows' or platform.system() == 'Linux'):
+            from secure_key import windows as skey
+        elif (platform.system() == 'Darwin'):
+            from secure_key import macos as skey
+        else:
+            print('ERROR: platform not supported')
+            sys.exit(-1)
+        return skey.get_secure_key()
+
+    def get_skey(self):
+        self.mse()
+        ct = self.encrypt_chacha(self._get_key_device())
+        return ct
+
+    def enable_device_aut(self):
+        ct = self.get_skey()
+        self.picohsm.send(cla=0x80, command=0x64, p1=0x3A, p2=0x02, data=list(ct))
+
+    def disable_device_aut(self):
+        ct = self.get_skey()
+        self.picohsm.send(cla=0x80, command=0x64, p1=0x3A, p2=0x04, p3=list(ct))
+
+def secure(picohsm, args):
+    slck = SecureLock(picohsm)
+    if (args.subcommand == 'enable'):
+        slck.enable_device_aut()
+    elif (args.subcommand == 'unlock'):
+        slck.unlock_device()
+    elif (args.subcommand == 'disable'):
+        slck.disable_device_aut()
+
+def cipher(picohsm, args):
+    if (args.file_in):
+        fin = open(args.file_in, 'rb')
+    else:
+        fin = sys.stdin.buffer
+    enc = fin.read()
+    fin.close()
+    iv = args.iv
+    if (args.iv and args.hex):
+        iv = unhexlify(iv)
+    aad = args.aad
+    if (args.aad and args.hex):
+            aad = unhexlify(aad)
+    kid = int(args.key)
+
+    mode = EncryptionMode.ENCRYPT if args.subcommand[0] == 'e' else EncryptionMode.DECRYPT
+    if (args.alg == 'CHACHAPOLY'):
+        ret = picohsm.chachapoly(kid, mode, data=enc, iv=iv, aad=aad)
+    elif (args.alg == 'AES-ECB'):
+        ret = picohsm.aes(keyid=kid, mode=mode, algorithm=AES.ECB, data=enc, iv=iv, aad=aad)
+    elif (args.alg == 'AES-CBC'):
+        ret = picohsm.aes(keyid=kid, mode=mode, algorithm=AES.CBC, data=enc, iv=iv, aad=aad)
+    elif (args.alg == 'AES-OFB'):
+        ret = picohsm.aes(keyid=kid, mode=mode, algorithm=AES.OFB, data=enc, iv=iv, aad=aad)
+    elif (args.alg == 'AES-CFB'):
+        ret = picohsm.aes(keyid=kid, mode=mode, algorithm=AES.CFB, data=enc, iv=iv, aad=aad)
+    elif (args.alg == 'AES-GCM'):
+        ret = picohsm.aes(keyid=kid, mode=mode, algorithm=AES.GCM, data=enc, iv=iv, aad=aad)
+    elif (args.alg == 'AES-CCM'):
+        ret = picohsm.aes(keyid=kid, mode=mode, algorithm=AES.CCM, data=enc, iv=iv, aad=aad)
+    elif (args.alg == 'AES-CTR'):
+        ret = picohsm.aes(keyid=kid, mode=mode, algorithm=AES.CTR, data=enc, iv=iv, aad=aad)
+    elif (args.alg == 'AES-XTS'):
+        ret = picohsm.aes(keyid=kid, mode=mode, algorithm=AES.XTS, data=enc, iv=iv, aad=aad)
+    elif (args.alg == 'CMAC'):
+        ret = picohsm.cmac(keyid=kid, data=enc)
+    elif (args.alg == 'HMAC-SHA1'):
+        ret = picohsm.hmac(hashes.SHA1, kid, data=enc)
+    elif (args.alg == 'HMAC-SHA224'):
+        ret = picohsm.hmac(hashes.SHA224, kid, data=enc)
+    elif (args.alg == 'HMAC-SHA256'):
+        ret = picohsm.hmac(hashes.SHA256, kid, data=enc)
+    elif (args.alg == 'HMAC-SHA384'):
+        ret = picohsm.hmac(hashes.SHA384, kid, data=enc)
+    elif (args.alg == 'HMAC-SHA512'):
+        ret = picohsm.hmac(hashes.SHA512, kid, data=enc)
+    elif (args.alg == 'HKDF-SHA256'):
+        ret = picohsm.hkdf(hashes.SHA256, kid, data=enc, salt=iv, out_len=args.output_len)
+    elif (args.alg == 'HKDF-SHA384'):
+        ret = picohsm.hkdf(hashes.SHA384, kid, data=enc, salt=iv, out_len=args.output_len)
+    elif (args.alg == 'HKDF-SHA512'):
+        ret = picohsm.hkdf(hashes.SHA512, kid, data=enc, salt=iv, out_len=args.output_len)
+    elif (args.alg == 'PBKDF2-SHA1'):
+        ret = picohsm.pbkdf2(hashes.SHA1, kid, salt=iv, iterations=args.iteration, out_len=args.output_len)
+    elif (args.alg == 'PBKDF2-SHA224'):
+        ret = picohsm.pbkdf2(hashes.SHA224, kid, salt=iv, iterations=args.iteration, out_len=args.output_len)
+    elif (args.alg == 'PBKDF2-SHA256'):
+        ret = picohsm.pbkdf2(hashes.SHA256, kid, salt=iv, iterations=args.iteration, out_len=args.output_len)
+    elif (args.alg == 'PBKDF2-SHA384'):
+        ret = picohsm.pbkdf2(hashes.SHA384, kid, salt=iv, iterations=args.iteration, out_len=args.output_len)
+    elif (args.alg == 'PBKDF2-SHA512'):
+        ret = picohsm.pbkdf2(hashes.SHA512, kid, salt=iv, iterations=args.iteration, out_len=args.output_len)
+    elif (args.alg == 'X963-SHA1'):
+        ret = picohsm.x963(hashes.SHA1, kid, data=enc, out_len=args.output_len)
+    elif (args.alg == 'X963-SHA224'):
+        ret = picohsm.x963(hashes.SHA224, kid, data=enc, out_len=args.output_len)
+    elif (args.alg == 'X963-SHA256'):
+        ret = picohsm.x963(hashes.SHA256, kid, data=enc, out_len=args.output_len)
+    elif (args.alg == 'X963-SHA384'):
+        ret = picohsm.x963(hashes.SHA384, kid, data=enc, out_len=args.output_len)
+    elif (args.alg == 'X963-SHA512'):
+        ret = picohsm.x963(hashes.SHA512, kid, data=enc, out_len=args.output_len)
+
+    if (args.file_out):
+        fout = open(args.file_out, 'wb')
+    else:
+        fout = sys.stdout.buffer
+    if (args.hex):
+        fout.write(hexlify(bytes(ret)))
+    else:
+        fout.write(bytes(ret))
+    if (args.file_out):
+        fout.close()
+
+def keygen(picohsm, args):
+    if (args.subcommand == 'aes'):
+        ret = picohsm.key_generation(KeyType.AES, param=args.size)
+    elif (args.subcommand in ['x25519', 'x448']):
+        curve = 'curve' + args.subcommand[1:]
+        ret = picohsm.key_generation(KeyType.ECC, curve)
+    print('Key generated successfully.')
+    print(f'Key ID: {ret}')
+
+def phy(picohsm, args):
+    val = args.value if 'value' in args else None
+    if (val):
+        if (args.subcommand == 'vidpid'):
+            sp = val.split(':')
+            if (len(sp) != 2):
+                print('ERROR: VID/PID have wrong format. Use VID:PID format (e.g. 1234:5678)')
+            val = int(sp[0],16).to_bytes(2, 'big') + int(sp[1],16).to_bytes(2, 'big')
+        elif (args.subcommand == 'led'):
+            val = [int(val)]
+        elif (args.subcommand == 'wcid'):
+            val = val == 'enable'
+    ret = picohsm.phy(args.subcommand, val)
+    if (ret):
+        print(f'Current value: {hexlify(ret)}')
+    else:
+        print('Command executed successfully. Please, restart your Pico Key.')
+
 def main(args):
-    print('Pico HSM Tool v1.4')
-    print('Author: Pol Henarejos')
-    print('Report bugs to https://github.com/polhenarejos/pico-hsm/issues')
-    print('')
-    print('')
-    cardtype = AnyCardType()
-    try:
-        # request card insertion
-        cardrequest = CardRequest(timeout=10, cardType=cardtype)
-        card = cardrequest.waitforcard()
+    sys.stderr.buffer.write(b'Pico HSM Tool v1.14\n')
+    sys.stderr.buffer.write(b'Author: Pol Henarejos\n')
+    sys.stderr.buffer.write(b'Report bugs to https://github.com/polhenarejos/pico-hsm/issues\n')
+    sys.stderr.buffer.write(b'\n\n')
+    sys.stderr.flush()
 
-        # connect to the card and perform a few transmits
-        card.connection.connect()
-
-    except CardRequestTimeoutException:
-        print('time-out: no card inserted during last 10s')
+    picohsm = PicoHSM(args.pin)
 
     # Following commands may raise APDU exception on error
     if (args.command == 'initialize'):
-        initialize(card, args)
+        initialize(picohsm, args)
     elif (args.command == 'attestate'):
-        attestate(card, args)
+        attestate(picohsm, args)
     elif (args.command == 'pki'):
-        pki(card, args)
+        pki(picohsm, args)
     elif (args.command == 'datetime'):
-        rtc(card, args)
+        rtc(picohsm, args)
     elif (args.command == 'options'):
-        opts(card, args)
+        opts(picohsm, args)
+    elif (args.command == 'secure'):
+        secure(picohsm, args)
+    elif (args.command == 'cipher'):
+        cipher(picohsm, args)
+    elif (args.command == 'keygen'):
+        keygen(picohsm, args)
+    elif (args.command == 'phy'):
+        phy(picohsm, args)
+
 
 def run():
     args = parse_args()

tools/secure_key/macos.py

@@ -0,0 +1,61 @@
+import sys
+import keyring
+
+DOMAIN = "PicoKeys.com"
+USERNAME = "Pico-HSM"
+
+try:
+    import keyring
+    from keyrings.osx_keychain_keys.backend import OSXKeychainKeysBackend, OSXKeychainKeyType, OSXKeyChainKeyClassType
+except:
+    print('ERROR: keyring module not found! Install keyring package.\nTry with `pip install keyrings.osx-keychain-keys`')
+    sys.exit(-1)
+
+try:
+    from cryptography.hazmat.primitives.serialization import Encoding, PrivateFormat, NoEncryption
+except:
+    print('ERROR: cryptography module not found! Install cryptography package.\nTry with `pip install cryptography`')
+    sys.exit(-1)
+
+
+def get_backend(use_secure_enclave=False):
+    backend = OSXKeychainKeysBackend(
+        key_type=OSXKeychainKeyType.EC, # Key type, e.g. RSA, RC, DSA, ...
+        key_class_type=OSXKeyChainKeyClassType.Private, # Private key, Public key, Symmetric-key
+        key_size_in_bits=256,
+        is_permanent=True, # If set, saves the key in keychain; else, returns a transient key
+        use_secure_enclave=use_secure_enclave, # Saves the key in the T2 (TPM) chip, requires a code-signed interpreter
+        access_group=None, # Limits key management and retrieval to set group, requires a code-signed interpreter
+        is_extractable=True # If set, private key is extractable; else, it can't be retrieved, but only operated against
+    )
+    return backend
+
+def generate_secure_key(use_secure_enclave=False):
+    backend = get_backend(use_secure_enclave)
+    backend.set_password(DOMAIN, USERNAME, password=None)
+    return backend.get_password(DOMAIN, USERNAME)
+
+def get_d(key):
+    return key.private_numbers().private_value.to_bytes(32, 'big')
+
+def set_secure_key(pk):
+    backend = get_backend(False)
+    try:
+        backend.delete_password(DOMAIN, USERNAME)
+    except:
+        pass
+    backend.set_password(DOMAIN, USERNAME, pk.private_bytes(Encoding.PEM, PrivateFormat.TraditionalOpenSSL, NoEncryption()))
+
+def get_secure_key():
+    key = None
+    try:
+        backend = get_backend(False)
+        key = backend.get_password(DOMAIN, USERNAME)[0]
+        if (key is None):
+            raise TypeError
+    except (keyring.errors.KeyringError, TypeError):
+        try:
+            key = generate_secure_key(False)[0] # It should be True, but secure enclave causes python segfault
+        except keyring.errors.PasswordSetError:
+            key = generate_secure_key(False)[0]
+    return get_d(key)

tools/secure_key/windows.py

@@ -0,0 +1,46 @@
+import sys
+import os
+import base64
+
+DOMAIN = "PicoKeys.com"
+USERNAME = "Pico-HSM"
+
+try:
+    import keyring
+except:
+    print('ERROR: keyring module not found! Install keyring package.\nTry with `pip install keyring`')
+    sys.exit(-1)
+
+try:
+    from cryptography.hazmat.primitives.serialization import Encoding, PrivateFormat, NoEncryption, load_pem_private_key
+    from cryptography.hazmat.primitives.asymmetric import ec
+except:
+    print('ERROR: cryptography module not found! Install cryptography package.\nTry with `pip install cryptography`')
+    sys.exit(-1)
+
+
+
+def generate_secure_key():
+    pkey = ec.generate_private_key(ec.SECP256R1())
+    set_secure_key(pkey)
+    return keyring.get_password(DOMAIN, USERNAME)
+
+def get_d(key):
+    return load_pem_private_key(key, password=None).private_numbers().private_value.to_bytes(32, 'big')
+
+def set_secure_key(pk):
+    try:
+        keyring.delete_password(DOMAIN, USERNAME)
+    except:
+        pass
+    keyring.set_password(DOMAIN, USERNAME, pk.private_bytes(Encoding.PEM, PrivateFormat.PKCS8, NoEncryption()).decode())
+
+def get_secure_key():
+    key = None
+    try:
+        key = keyring.get_password(DOMAIN, USERNAME)
+        if (key is None):
+            raise TypeError
+    except (keyring.errors.KeyringError, TypeError):
+        key = generate_secure_key()
+    return get_d(key.encode())

workflows/autobuild.sh

@@ -9,5 +9,9 @@ git submodule update --init
 cd ..
 mkdir build
 cd build
+if [[ $1 == "pico" ]]; then
 cmake -DPICO_SDK_PATH=../pico-sdk ..
+else
+cmake -DENABLE_EMULATION=1 ..
+fi
 make