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Return largeBlobKey on cred management.

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2022-12-12 00:16:17 +01:00
parent 81717135f5
commit 2431812a18
1 changed files with 27 additions and 4 deletions
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31
src/fido/cbor_cred_mgmt.c
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@@ -221,10 +221,20 @@ int cbor_cred_mgmt(const uint8_t *data, size_t len) {
} }
cred_counter++; cred_counter++;
CBOR_CHECK(cbor_encoder_create_map(&encoder, &mapEncoder, subcommand == 0x04 ? 5 : 4));
uint8_t l = 4;
if (subcommand == 0x04)
l++;
if (cred.extensions.present == true) {
if (cred.extensions.credProtect > 0)
l++;
if (cred.extensions.largeBlobKey == ptrue)
l++;
}
CBOR_CHECK(cbor_encoder_create_map(&encoder, &mapEncoder, l));
CBOR_CHECK(cbor_encode_uint(&mapEncoder, 0x06)); CBOR_CHECK(cbor_encode_uint(&mapEncoder, 0x06));
uint8_t l = 0; l = 0;
if (cred.userId.present == true) if (cred.userId.present == true)
l++; l++;
if (cred.userName.present == true) if (cred.userName.present == true)
@@ -279,8 +289,21 @@ int cbor_cred_mgmt(const uint8_t *data, size_t len) {
asserted = true; asserted = true;
rpIdHashx = rpIdHash; rpIdHashx = rpIdHash;
} }
CBOR_CHECK(cbor_encode_uint(&mapEncoder, 0x0A)); if (cred.extensions.present == true) {
CBOR_CHECK(cbor_encode_uint(&mapEncoder, cred.extensions.credProtect)); if (cred.extensions.credProtect > 0) {
CBOR_CHECK(cbor_encode_uint(&mapEncoder, 0x0A));
CBOR_CHECK(cbor_encode_uint(&mapEncoder, cred.extensions.credProtect));
}
if (cred.extensions.largeBlobKey == ptrue) {
uint8_t largeBlobKey[32];
int ret = credential_derive_large_blob_key(cred.id.data, cred.id.len, largeBlobKey);
if (ret != 0) {
CBOR_ERROR(CTAP2_ERR_PROCESSING);
}
CBOR_CHECK(cbor_encode_uint(&mapEncoder, 0x0B));
CBOR_CHECK(cbor_encode_byte_string(&mapEncoder, largeBlobKey, sizeof(largeBlobKey)));
}
}
credential_free(&cred); credential_free(&cred);
mbedtls_ecdsa_free(&key); mbedtls_ecdsa_free(&key);
} }