Arduino/pico-fido
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ES256K1 is disabled by default for compatibility. It can be enabled via Pico Commissioner.

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Fixes #109.

Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2025-03-11 19:05:28 +01:00
parent 297c34914b
commit 6069cf949b
3 changed files with 8 additions and 3 deletions
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2
pico-keys-sdk

Submodule pico-keys-sdk updated: 2c3fe5bebf...7191cda6d3

7
src/fido/cbor_get_info.c
View File

@@ -102,6 +102,9 @@ int cbor_get_info() {
#ifdef MBEDTLS_EDDSA_C
curves++;
#endif
if (phy_data.enabled_curves & PHY_CURVE_SECP256K1) {
curves++;
}
CBOR_CHECK(cbor_encoder_create_array(&mapEncoder, &arrayEncoder, curves));
CBOR_CHECK(COSE_public_key(FIDO2_ALG_ES256, &arrayEncoder, &mapEncoder2));
#ifdef MBEDTLS_EDDSA_C
@@ -109,7 +112,9 @@ int cbor_get_info() {
#endif
CBOR_CHECK(COSE_public_key(FIDO2_ALG_ES384, &arrayEncoder, &mapEncoder2));
CBOR_CHECK(COSE_public_key(FIDO2_ALG_ES512, &arrayEncoder, &mapEncoder2));
CBOR_CHECK(COSE_public_key(FIDO2_ALG_ES256K, &arrayEncoder, &mapEncoder2));
if (!phy_data.enabled_curves_present || (phy_data.enabled_curves & PHY_CURVE_SECP256K1)) {
CBOR_CHECK(COSE_public_key(FIDO2_ALG_ES256K, &arrayEncoder, &mapEncoder2));
}
CBOR_CHECK(cbor_encoder_close_container(&mapEncoder, &arrayEncoder));

2
src/fido/cbor_make_credential.c
View File

@@ -217,7 +217,7 @@ int cbor_make_credential(const uint8_t *data, size_t len) {
curve = FIDO2_CURVE_P521;
}
}
else if (pubKeyCredParams[i].alg == FIDO2_ALG_ES256K) {
else if (pubKeyCredParams[i].alg == FIDO2_ALG_ES256K && (phy_data.enabled_curves & PHY_CURVE_SECP256K1)) {
if (curve <= 0) {
curve = FIDO2_CURVE_P256K1;
}