dearsky/pico-fido
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Update code style.

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2023-03-04 14:05:30 +01:00
parent 483073ebb8
commit 8b2be54ede
24 changed files with 1611 additions and 773 deletions
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35
src/fido/cmd_authenticate.c
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@@ -24,21 +24,24 @@
#include "credential.h"
int cmd_authenticate() {
CTAP_AUTHENTICATE_REQ *req = (CTAP_AUTHENTICATE_REQ *)apdu.data;
CTAP_AUTHENTICATE_RESP *resp = (CTAP_AUTHENTICATE_RESP *)res_APDU;
CTAP_AUTHENTICATE_REQ *req = (CTAP_AUTHENTICATE_REQ *) apdu.data;
CTAP_AUTHENTICATE_RESP *resp = (CTAP_AUTHENTICATE_RESP *) res_APDU;
//if (scan_files(true) != CCID_OK)
// return SW_EXEC_ERROR();
if (apdu.nc < CTAP_CHAL_SIZE+CTAP_APPID_SIZE+1+1)
if (apdu.nc < CTAP_CHAL_SIZE + CTAP_APPID_SIZE + 1 + 1) {
return SW_WRONG_DATA();
if (req->keyHandleLen < KEY_HANDLE_LEN)
}
if (req->keyHandleLen < KEY_HANDLE_LEN) {
return SW_INCORRECT_PARAMS();
if (P1(apdu) == CTAP_AUTH_ENFORCE && wait_button_pressed() == true)
}
if (P1(apdu) == CTAP_AUTH_ENFORCE && wait_button_pressed() == true) {
return SW_CONDITIONS_NOT_SATISFIED();
}
mbedtls_ecdsa_context key;
mbedtls_ecdsa_init(&key);
int ret = 0;
uint8_t *tmp_kh = (uint8_t *)calloc(1, req->keyHandleLen);
uint8_t *tmp_kh = (uint8_t *) calloc(1, req->keyHandleLen);
memcpy(tmp_kh, req->keyHandle, req->keyHandleLen);
if (credential_verify(tmp_kh, req->keyHandleLen, req->appId) == 0) {
ret = fido_load_key(FIDO2_CURVE_P256, req->keyHandle, &key);
@@ -68,23 +71,33 @@ int cmd_authenticate() {
resp->ctr[3] = ctr & 0xff;
uint8_t hash[32], sig_base[CTAP_APPID_SIZE + 1 + 4 + CTAP_CHAL_SIZE];
memcpy(sig_base, req->appId, CTAP_APPID_SIZE);
memcpy(sig_base+CTAP_APPID_SIZE, &resp->flags, sizeof(uint8_t));
memcpy(sig_base + CTAP_APPID_SIZE, &resp->flags, sizeof(uint8_t));
memcpy(sig_base + CTAP_APPID_SIZE + 1, resp->ctr, 4);
memcpy(sig_base + CTAP_APPID_SIZE + 1 + 4, req->chal, CTAP_CHAL_SIZE);
ret = mbedtls_md(mbedtls_md_info_from_type(MBEDTLS_MD_SHA256), sig_base, sizeof(sig_base), hash);
ret =
mbedtls_md(mbedtls_md_info_from_type(MBEDTLS_MD_SHA256), sig_base, sizeof(sig_base), hash);
if (ret != 0) {
mbedtls_ecdsa_free(&key);
return SW_EXEC_ERROR();
}
size_t olen = 0;
ret = mbedtls_ecdsa_write_signature(&key, MBEDTLS_MD_SHA256, hash, 32, (uint8_t *)resp->sig, CTAP_MAX_EC_SIG_SIZE, &olen, random_gen, NULL);
ret = mbedtls_ecdsa_write_signature(&key,
MBEDTLS_MD_SHA256,
hash,
32,
(uint8_t *) resp->sig,
CTAP_MAX_EC_SIG_SIZE,
&olen,
random_gen,
NULL);
mbedtls_ecdsa_free(&key);
if (ret != 0)
if (ret != 0) {
return SW_EXEC_ERROR();
}
res_APDU_size = 1 + 4 + olen;
ctr++;
flash_write_data_to_file(ef_counter, (uint8_t *)&ctr, sizeof(ctr));
flash_write_data_to_file(ef_counter, (uint8_t *) &ctr, sizeof(ctr));
low_flash_available();
return SW_OK();
}