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reset content length in PKCS7_VerifySignedData for multiPart OCTET_STRING bundles

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This commit is contained in:
Chris Conlon
2020-11-06 16:36:58 -07:00
parent c27d5f57c4
commit c0c452b0a1
1 changed files with 6 additions and 2 deletions
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8
wolfcrypt/src/pkcs7.c
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@@ -4375,9 +4375,13 @@ static int PKCS7_VerifySignedData(PKCS7* pkcs7, const byte* hashBuf,
ret = ASN_PARSE_E; ret = ASN_PARSE_E;
if (ret == 0) { if (ret == 0) {
/* Use single OCTET_STRING directly. */ /* Use single OCTET_STRING directly, or reset length. */
if (localIdx - start + length == (word32)contentLen) if (localIdx - start + length == (word32)contentLen) {
multiPart = 0; multiPart = 0;
} else {
/* reset length to outer OCTET_STRING (contentLen) */
length = contentLen;
}
localIdx = start; localIdx = start;
} }
} }