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Fix COSE type of key-agreement keys.

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The key-agreement keys in the PIN protocol use COSE type -25. I'm not
sure if that's written down anywhere, but it's what everything else does
and it's an ECDH type rather than an ECDSA type.
This commit is contained in:
Adam Langley
2019-04-20 16:37:54 -07:00
parent a5f794c0ff
commit 73f538dd0e
2 changed files with 3 additions and 3 deletions
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2
fido2/ctap.c
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@@ -1476,7 +1476,7 @@ uint8_t ctap_client_pin(CborEncoder * encoder, uint8_t * request, int length)
ret = cbor_encode_int(&map, RESP_keyAgreement);
check_ret(ret);
ret = ctap_add_cose_key(&map, KEY_AGREEMENT_PUB, KEY_AGREEMENT_PUB+32, PUB_KEY_CRED_PUB_KEY, COSE_ALG_ES256);
ret = ctap_add_cose_key(&map, KEY_AGREEMENT_PUB, KEY_AGREEMENT_PUB+32, PUB_KEY_CRED_PUB_KEY, COSE_ALG_ECDH_ES_HKDF_256);
check_retr(ret);
break;