/*************************************************************************
* Copyright (C) 2002 Intel Corporation
*
* Licensed under the Apache License,  Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* 	http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law  or agreed  to  in  writing,  software
* distributed under  the License  is  distributed  on  an  "AS IS"  BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the  specific  language  governing  permissions  and
* limitations under the License.
*************************************************************************/

/*
//
//  Purpose:
//     Cryptography Primitive.
//     Digesting message according to SHA1
//
//  Contents:
//        ippsHashMethodSet_SHA1_TT()
//
*/

#include "owndefs.h"
#include "owncp.h"
#include "hash/pcphash.h"
#include "hash/pcphash_rmf.h"
#include "pcptool.h"
#include "hash/sha1/pcpsha1stuff.h"

/*F*
//    Name: ippsHashMethodSet_SHA1_TT
//
// Purpose: Setup SHA1 method
//          (using the Intel® Secure Hash Algorithm - New Instructions (Intel® SHA-NI) instructions set
//             if it is available at run time)
//
// Returns:                Reason:
//    ippStsNullPtrErr           pMethod == NULL
//    ippStsNoErr                no errors
//
*F*/

IPPFUN(IppStatus, ippsHashMethodSet_SHA1_TT, (IppsHashMethod * pMethod))
{
    /* test pointers */
    IPP_BAD_PTR1_RET(pMethod);

    pMethod->hashAlgId     = ippHashAlg_SHA1;
    pMethod->hashLen       = IPP_SHA1_DIGEST_BITSIZE / 8;
    pMethod->msgBlkSize    = MBS_SHA1;
    pMethod->msgLenRepSize = MLR_SHA1;
    pMethod->stateLen      = IPP_SHA1_STATE_BYTESIZE;
    pMethod->hashInit      = sha1_hashInit;
    pMethod->hashUpdate    = sha1_hashUpdate;
    pMethod->hashOctStr    = sha1_hashOctString;
    pMethod->msgLenRep     = sha1_msgRep;

#if (_SHA_NI_ENABLING_ == _FEATURE_TICKTOCK_ || _SHA_NI_ENABLING_ == _FEATURE_ON_)
    if (IsFeatureEnabled(ippCPUID_SHA))
        pMethod->hashUpdate = sha1_ni_hashUpdate;
#endif

    return ippStsNoErr;
}
