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Allow PKCS7_VerifyDecodedData to have an empty set of SignerInfos. Save first certificate.

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This commit is contained in:
John Safranek
2014-01-24 12:14:53 -08:00
parent 595fe0b445
commit 1dac5d28e3
1 changed files with 67 additions and 66 deletions
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19
ctaocrypt/src/pkcs7.c
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@ -653,8 +653,9 @@ int PKCS7_VerifySignedData(PKCS7* pkcs7, byte* pkiMsg, word32 pkiMsgSz)
/* Save the inner data as the content. */
if (length > 0) {
content = &pkiMsg[idx];
contentSz = length;
/* Local pointer for calculating hashes later */
pkcs7->content = content = &pkiMsg[idx];
pkcs7->contentSz = contentSz = length;
idx += length;
}
@ -680,6 +681,7 @@ int PKCS7_VerifySignedData(PKCS7* pkcs7, byte* pkiMsg, word32 pkiMsgSz)
cert = &pkiMsg[idx];
certSz += (certIdx - idx);
}
PKCS7_InitWithCert(pkcs7, cert, certSz);
}
idx += length;
}
@ -698,6 +700,12 @@ int PKCS7_VerifySignedData(PKCS7* pkcs7, byte* pkiMsg, word32 pkiMsgSz)
if (GetSet(pkiMsg, &idx, &length, pkiMsgSz) < 0)
return ASN_PARSE_E;
if (length > 0) {
RsaKey key;
word32 scratch = 0;
int plainSz = 0;
byte digest[MAX_SEQ_SZ+MAX_ALGO_SZ+MAX_OCTET_STR_SZ+SHA_DIGEST_SIZE];
/* Get the sequence of the first signerInfo */
if (GetSequence(pkiMsg, &idx, &length, pkiMsgSz) < 0)
return ASN_PARSE_E;
@ -760,14 +768,7 @@ int PKCS7_VerifySignedData(PKCS7* pkcs7, byte* pkiMsg, word32 pkiMsgSz)
idx += length;
}
{
RsaKey key;
word32 scratch = 0;
int plainSz = 0;
byte digest[MAX_SEQ_SZ+MAX_ALGO_SZ+MAX_OCTET_STR_SZ+SHA_DIGEST_SIZE];
XMEMSET(digest, 0, sizeof(digest));
PKCS7_InitWithCert(pkcs7, cert, certSz);
pkcs7->content = content;
pkcs7->contentSz = contentSz;