Add EdDSA support as a conditional build.

Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2025-02-21 20:20:43 +01:00
18 changed files with 176 additions and 70 deletions

View File

@@ -78,6 +78,21 @@ int cmd_keypair_gen() {
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();
}
#ifdef MBEDTLS_EDDSA_C
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;
}
#endif
}
printf("KEYPAIR ECC %d\r\n", ec_id);
mbedtls_ecdsa_context ecdsa;
mbedtls_ecdsa_init(&ecdsa);
uint8_t index = 0;