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/* 
// 
//  Purpose:
//     Cryptography Primitive.
//     Security Hash Standard
//     Generalized Functionality
// 
//  Contents:
//     cpFinalize_rmf()
// 
*/

#include "owndefs.h"
#include "owncp.h"
#include "pcphash_rmf.h"
#include "pcptool.h"


void cpFinalize_rmf(DigestSHA512 pHash,
              const Ipp8u* inpBuffer, int inpLen,
                    Ipp64u lenLo, Ipp64u lenHi,
              const IppsHashMethod* method)
{
   int mbs = method->msgBlkSize;    /* messge block size */
   int mrl = method->msgLenRepSize; /* processed length representation size */

   /* local buffer and it length */
   Ipp8u buffer[MBS_SHA512*2];
   int bufferLen = inpLen < (mbs-mrl)? mbs : mbs*2; 

   /* copy rest of message into internal buffer */
   CopyBlock(inpBuffer, buffer, inpLen);

   /* padd message */
   buffer[inpLen++] = 0x80;
   PaddBlock(0, buffer+inpLen, bufferLen-inpLen-mrl);

   /* message length representation */
   method->msgLenRep(buffer+bufferLen-mrl, lenLo, lenHi);

   /* copmplete hash computation */
   method->hashUpdate(pHash, buffer, bufferLen);
}