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/*******************************************************************************
* Copyright 2005-2018 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
* licensors. The Material is protected by worldwide copyright laws and treaty
* provisions. No part of the Material may be used, copied, reproduced,
* modified, published, uploaded, posted, transmitted, distributed or disclosed
* in any way without Intel's prior express written permission. No license under
* any patent, copyright or other intellectual property rights in the Material
* is granted to or conferred upon you, either expressly, by implication,
* inducement, estoppel or otherwise. Any license under such intellectual
* property rights must be express and approved by Intel in writing.
*
* Unless otherwise agreed by Intel in writing, you may not remove or alter this
* 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:
*
* 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.
// Internal Definitions and
// Internal DL (prime) basic Definitions & Function Prototypes
//
//
*/
#if !defined(_PCP_DLP_H)
#define _PCP_DLP_H
#include "pcpbn.h"
#include "pcpmontgomery.h"
#include "pcpprimeg.h"
#include "pcpbnresource.h"
/*
// DLP context
*/
//#define MIN_DLP_BITSIZE (512)
//#define MAX_DLP_BITSIZE (2048)
//#define DEF_DLP_BITSIZER (160)
struct _cpDLP {
IppCtxId idCtx; /* DL identifier */
Ipp32u flag; /* complete flag */
int bitSizeP; /* DH bitsize (P) */
int bitSizeR; /* DH bitsize (R) */
int method; /* exponentiation method: binary/window */
gsModEngine* pMontP0; /* Montgomery P-engine */
gsModEngine* pMontP1; /* Montgomery P-engine (for multithread version) */
gsModEngine* pMontR; /* Montgomery R-engine */
IppsBigNumState* pGenc; /* P-encoded DL generator */
IppsBigNumState* pX; /* private key */
IppsBigNumState* pYenc; /* P-encoded public key */
IppsPrimeState* pPrimeGen; /* prime generator */
BNU_CHUNK_T* pMeTable; /* pre-computed multi-exp table */
BigNumNode* pBnList; /* BN resource */
#if defined(_USE_WINDOW_EXP_)
BNU_CHUNK_T* pBnuList0; /* BNU resource */
BNU_CHUNK_T* pBnuList1; /* BNU resource (for multithread version) */
#endif
};
/*
// Exponentiation method
*/
#define BINARY (0)
#define WINDOW ((BINARY)+1)
#define BNLISTSIZE (8) /* list size */
/*
// Contetx Access Macros
*/
#define DLP_ID(ctx) ((ctx)->idCtx)
#define DLP_FLAG(ctx) ((ctx)->flag)
#define DLP_BITSIZEP(ctx) ((ctx)->bitSizeP)
#define DLP_BITSIZER(ctx) ((ctx)->bitSizeR)
#define DLP_EXPMETHOD(ctx) ((ctx)->method)
#define DLP_MONTP0(ctx) ((ctx)->pMontP0)
#define DLP_MONTP1(ctx) ((ctx)->pMontP1)
#define DLP_MONTR(ctx) ((ctx)->pMontR)
#define DLP_P(ctx) (MOD_MODULUS(DLP_MONTP0((ctx))))
#define DLP_R(ctx) (MOD_MODULUS(DLP_MONTR((ctx))))
#define DLP_GENC(ctx) ((ctx)->pGenc)
#define DLP_X(ctx) ((ctx)->pX)
#define DLP_YENC(ctx) ((ctx)->pYenc)
#define DLP_PRIMEGEN(ctx) ((ctx)->pPrimeGen)
#define DLP_METBL(ctx) ((ctx)->pMeTable)
#define DLP_BNCTX(ctx) ((ctx)->pBnList)
#if defined(_USE_WINDOW_EXP_)
#define DLP_BNUCTX0(ctx) ((ctx)->pBnuList0)
#define DLP_BNUCTX1(ctx) ((ctx)->pBnuList1)
#endif
#define DLP_VALID_ID(ctx) (DLP_ID((ctx))==idCtxDLP)
#define DLP_COMPLETE(ctx) (DLP_FLAG((ctx))==(IppDLPkeyP|IppDLPkeyR|IppDLPkeyG))
/* alignment */
#define DLP_ALIGNMENT ((int)(sizeof(void*)))
/* pool size for gsModEngine */
#define DLP_MONT_POOL_LENGTH (6)
#define cpPackDLPCtx OWNAPI(cpPackDLPCtx)
void cpPackDLPCtx(const IppsDLPState* pDLP, Ipp8u* pBuffer);
#define cpUnpackDLPCtx OWNAPI(cpUnpackDLPCtx)
void cpUnpackDLPCtx(const Ipp8u* pBuffer, IppsDLPState* pDLP);
#endif /* _PCP_DLP_H */
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