dearsky/pico-fido
1
0
Fork 0
Code Issues 46 Pull Requests 1 Actions Packages Projects Releases 22 Wiki Activity

Instead of generating a new keypair, all keys are derived from the master key.

Browse Source 
Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2022-09-05 11:30:49 +02:00
parent 65b14960ce
commit ed0a798f63
2 changed files with 130 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
src/fido/fido.h
View File

@@ -18,12 +18,16 @@
#ifndef _FIDO_H_
#define _FIDO_H_
#define U2F_PUBKEY_LEN 65
#define KEY_PATH_LEN 32
#include <stdlib.h>
#include "pico/stdlib.h"
#include "common.h"
#include "mbedtls/ecdsa.h"
#define U2F_PUBKEY_LEN (65)
#define KEY_PATH_LEN (32)
#define SHA256_DIGEST_LENGTH (32)
#define KEY_HANDLE_LEN (KEY_PATH_LEN + SHA256_DIGEST_LENGTH)
#define MKEK_IV_SIZE 16
#define MKEK_KEY_SIZE 32
#define MKEK_SIZE (MKEK_IV_SIZE+MKEK_KEY_SIZE)
extern int derive_key(const uint8_t *app_id, bool new_key, uint8_t *key_handle, mbedtls_ecdsa_context *key);
#endif //_FIDO_H