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/*******************************************************************************
* Copyright 2002-2018 Intel Corporation
* All Rights Reserved.
*
* If this software was obtained under the Intel Simplified Software License,
* the following terms apply:
*
* The source code, information and material ("Material") contained herein is
* owned by Intel Corporation or its suppliers or licensors, and title to such
* Material remains with Intel Corporation or its suppliers or licensors. The
* Material contains proprietary information of Intel or its suppliers and
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* inducement, estoppel or otherwise. Any license under such intellectual
* property rights must be express and approved by Intel in writing.
*
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* notice or any other notice embedded in Materials by Intel or Intel's
* suppliers or licensors in any way.
*
*
* If this software was obtained under the Apache License, Version 2.0 (the
* "License"), the following terms apply:
*
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* 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.
*******************************************************************************/
/*
// Intel(R) Integrated Performance Primitives
// Cryptographic Primitives (ippcp)
//
// Contents:
// cpMontInit()
//
*/
#include "owndefs.h"
#include "owncp.h"
#include "pcpbn.h"
#include "pcpmontgomery.h"
#include "pcptool.h"
/*F*
// Name: cpMontInit
//
// Purpose: Initializes the symbolic data structure and partitions the
// specified buffer space.
//
// Returns: Reason:
// ippStsNoErr no errors
//
// Parameters:
// poolLength length of pool
// maxLen32 max modulus length (in Ipp32u chunks)
// pMont pointer to Montgomery context
//
*F*/
IppStatus cpMontInit(int maxLen32, int poolLength, IppsMontState* pMont)
{
pMont = (IppsMontState*)( IPP_ALIGNED_PTR(pMont, MONT_ALIGNMENT) );
{
int maxBitSize = ((maxLen32) << 5);
MNT_ROOM( pMont ) = INTERNAL_BNU_LENGTH(maxLen32);
MNT_ENGINE ( pMont ) = (gsModEngine*)((Ipp8u*)pMont + sizeof(IppsMontState));
MNT_ID(pMont) = idCtxMontgomery;
gsModEngineInit(MNT_ENGINE(pMont), NULL, maxBitSize, poolLength, gsModArithMont());
return ippStsNoErr;
}
}
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