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Relaxed parsing of explicit ECC public key

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This commit is contained in:
Anthony Hu
2023-03-06 20:11:36 -05:00
parent da04e0fb4c
commit 109063e427
1 changed files with 2 additions and 0 deletions
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wolfcrypt/src/asn.c
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@@ -31117,11 +31117,13 @@ static int EccSpecifiedECDomainDecode(const byte* input, word32 inSz,
if ((ret == 0) && (version < 1 || version > 3)) {
ret = ASN_PARSE_E;
}
#ifndef WOLFSSL_RELAXED_ASN_PARSING
/* Only version 2 and above can have a seed. */
if ((ret == 0) && (dataASN[ECCSPECIFIEDASN_IDX_PARAM_SEED].tag != 0) &&
(version < 2)) {
ret = ASN_PARSE_E;
}
#endif
/* Only version 2 and above can have a hash algorithm. */
if ((ret == 0) && (dataASN[ECCSPECIFIEDASN_IDX_HASH_SEQ].tag != 0) &&
(version < 2)) {