dearsky/pico-hsm
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Added support for EdDSA signature.

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2023-08-22 17:10:03 +02:00
parent 22d8793683
commit faef2dc278
7 changed files with 66 additions and 39 deletions
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12
src/hsm/cvc.c
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@@ -72,7 +72,7 @@ const uint8_t *pointA[] = {
"\x01\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFC",
};
size_t asn1_cvc_public_key_ecdsa(mbedtls_ecdsa_context *ecdsa, uint8_t *buf, size_t buf_len) {
size_t asn1_cvc_public_key_ecdsa(mbedtls_ecp_keypair *ecdsa, uint8_t *buf, size_t buf_len) {
uint8_t Y_buf[MBEDTLS_ECP_MAX_PT_LEN];
const uint8_t oid_ecdsa[] = { 0x04, 0x00, 0x7F, 0x00, 0x07, 0x02, 0x02, 0x02, 0x02, 0x03 };
size_t p_size = mbedtls_mpi_size(&ecdsa->grp.P), a_size = mbedtls_mpi_size(&ecdsa->grp.A);
@@ -324,10 +324,10 @@ size_t asn1_cvc_aut(void *rsa_ecdsa,
if (!fkey) {
return 0;
}
mbedtls_ecdsa_context ectx;
mbedtls_ecdsa_init(&ectx);
if (load_private_key_ecdsa(&ectx, fkey) != CCID_OK) {
mbedtls_ecdsa_free(&ectx);
mbedtls_ecp_keypair ectx;
mbedtls_ecp_keypair_init(&ectx);
if (load_private_key_ec(&ectx, fkey) != CCID_OK) {
mbedtls_ecp_keypair_free(&ectx);
return 0;
}
int ret = 0, key_size = 2 * mbedtls_mpi_size(&ectx.d);
@@ -354,7 +354,7 @@ size_t asn1_cvc_aut(void *rsa_ecdsa,
mbedtls_mpi_init(&r);
mbedtls_mpi_init(&s);
ret = mbedtls_ecdsa_sign(&ectx.grp, &r, &s, &ectx.d, hsh, sizeof(hsh), random_gen, NULL);
mbedtls_ecdsa_free(&ectx);
mbedtls_ecp_keypair_free(&ectx);
if (ret != 0) {
mbedtls_mpi_free(&r);
mbedtls_mpi_free(&s);