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Added function for reading COSE keys.

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2023-08-17 01:30:49 +02:00
parent b7ceec8d49
commit 4c3042a8bf
5 changed files with 33 additions and 72 deletions
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29
src/fido/cbor.c
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@@ -204,3 +204,32 @@ CborError COSE_public_key(int alg, CborEncoder *mapEncoderParent, CborEncoder *m
err:
return error;
}
CborError COSE_read_key(CborValue *f, int64_t *kty, int64_t *alg, int64_t *crv, CborByteString *kax, CborByteString *kay) {
int64_t kkey = 0;
CborError error = CborNoError;
CBOR_PARSE_MAP_START(*f, 0)
{
CBOR_FIELD_GET_INT(kkey, 0);
if (kkey == 1) {
CBOR_FIELD_GET_INT(*kty, 0);
}
else if (kkey == 3) {
CBOR_FIELD_GET_INT(*alg, 0);
}
else if (kkey == -1) {
CBOR_FIELD_GET_INT(*crv, 0);
}
else if (kkey == -2) {
CBOR_FIELD_GET_BYTES(*kax, 0);
}
else if (kkey == -3) {
CBOR_FIELD_GET_BYTES(*kay, 0);
}
else {
CBOR_ADVANCE(0);
}
}
CBOR_PARSE_MAP_END(*f, 0);
err:
return error;
}