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omit NULL AlgorithmIdentifier parameter for ECDSA algoOID types in SetAlgoID

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This commit is contained in:
Chris Conlon
2016-04-21 14:32:28 -06:00
parent 86cbabf035
commit 27814ca1df
1 changed files with 13 additions and 1 deletions
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14
wolfcrypt/src/asn.c
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@@ -3372,6 +3372,17 @@ static int SetCurve(ecc_key* key, byte* output)
#endif /* HAVE_ECC && WOLFSSL_CERT_GEN */
static INLINE int IsSigAlgoECDSA(int algoOID)
{
/* ECDSA sigAlgo must not have ASN1 NULL parameters */
if (algoOID == CTC_SHAwECDSA || algoOID == CTC_SHA256wECDSA ||
algoOID == CTC_SHA384wECDSA || algoOID == CTC_SHA512wECDSA) {
return 1;
}
return 0;
}
WOLFSSL_LOCAL word32 SetAlgoID(int algoOID, byte* output, int type, int curveSz)
{
word32 tagSz, idSz, seqSz, algoSz = 0;
@@ -3379,7 +3390,8 @@ WOLFSSL_LOCAL word32 SetAlgoID(int algoOID, byte* output, int type, int curveSz)
byte ID_Length[MAX_LENGTH_SZ];
byte seqArray[MAX_SEQ_SZ + 1]; /* add object_id to end */
tagSz = (type == oidHashType || type == oidSigType ||
tagSz = (type == oidHashType ||
(type == oidSigType && !IsSigAlgoECDSA(algoOID)) ||
(type == oidKeyType && algoOID == RSAk)) ? 2 : 0;
algoName = OidFromId(algoOID, type, &algoSz);