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Fix CardSignData "invalid signature" bug when called from CryptSignHash(CRYPT_NOHASHOID)

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vletoux 2015-04-11 08:52:22 +02:00 committed by Viktor Tarasov
parent 6aaf9d462c
commit 54f462368b
1 changed files with 10 additions and 0 deletions
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10
src/minidriver/minidriver.c
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@ -3181,6 +3181,16 @@ DWORD WINAPI CardSignData(__in PCARD_DATA pCardData, __in PCARD_SIGNING_INFO pIn
else if (hashAlg !=0)
return SCARD_E_UNSUPPORTED_FEATURE;
}
if (pInfo->dwSigningFlags & CARD_PADDING_NONE)
{
/* do not add the digest info when called from CryptSignHash(CRYPT_NOHASHOID)
Note: SC_ALGORITHM_RSA_HASH_MD5_SHA1 aka CALG_SSL3_SHAMD5 do not have a digest info to be added
CryptSignHash(CALG_SSL3_SHAMD5,CRYPT_NOHASHOID) is the same than CryptSignHash(CALG_SSL3_SHAMD5)
*/
opt_hash_flags = 0;
}
/* From sc-minidriver_specs_v7.docx pp.76:
* 'The Base CSP/KSP performs the hashing operation on the data before passing it