CSM_Free3::SMTI_DigestData

Hi,

I want to know why we do not use CryptoPP::SHA when we want to do hash with
SHA algorithm ?????   (we use internal function)

/***************************************************************************************/

(line 2134)
//////////////////////////////////////////////////////////////////////////
// SMTI_DigestData uses CSM_Common for SHA1 and Crypto++ for MD5
SM_RET_VAL CSM_Free3::SMTI_DigestData(
            CSM_Buffer *pData, // input
            CSM_Buffer *pDigest) // output
{
   CSM_OID *poidDigest = NULL;
   char *pchData;
   long lBytesRead;

   SME_SETUP("CSM_Free3::SMTI_DigestData");

   // find out what the preferred digest alg is
   if ((poidDigest = GetPrefDigest()) == NULL)
      SME_THROW(SM_FREE_NO_DIGEST_ALG, NULL, NULL);

   if (*poidDigest == sha_1 || *poidDigest == id_dsa_with_sha1 ||
//       *poidDigest == sha_1WithRSAEncryption_ALT ||
       *poidDigest == sha_1WithRSAEncryption)
   {
      // do SHA1 digest using common CTI
      SME(CSM_Common::SMTI_DigestData(pData, pDigest));
   }
   else if (*poidDigest == md5 ||
            *poidDigest == md5WithRSAEncryption)
   {
      bool bLastBlock = false; // set to true when this is the last block
      // do MD5 digest
      MD5 md5;
....
}
/***************************************************************************************/


CSM_Free3 is not supposed to use Crypto++ library ?????


Thanks.

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Eric Boudreault
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Programmeur
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Motus Technologies
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courriel: [email protected]
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