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/*******************************************************************************
* Copyright 2013-2018 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 SMS4 Function Prototypes
//
//
*/
#if !defined(_PCP_SMS4_H)
#define _PCP_SMS4_H
#include "owncp.h"
struct _cpSMS4 {
IppCtxId idCtx; /* SMS4 spec identifier */
Ipp32u enc_rkeys[32]; /* enc round keys */
Ipp32u dec_rkeys[32]; /* enc round keys */
};
/*
// access macros
*/
#define SMS4_ID(ctx) ((ctx)->idCtx)
#define SMS4_RK(ctx) ((ctx)->enc_rkeys)
#define SMS4_ERK(ctx) ((ctx)->enc_rkeys)
#define SMS4_DRK(ctx) ((ctx)->dec_rkeys)
/* SMS4 data block size (bytes) */
#define MBS_SMS4 (16)
/* valid SMS4 context ID */
#define VALID_SMS4_ID(ctx) (SMS4_ID((ctx))==idCtxSMS4)
/* alignment of AES context */
#define SMS4_ALIGNMENT (4)
/* size of SMS4 context */
__INLINE int cpSizeofCtx_SMS4(void)
{
return sizeof(IppsSMS4Spec) +(SMS4_ALIGNMENT-1);
}
/* SMS4 constants */
extern const __ALIGN64 Ipp8u SMS4_Sbox[16*16];
extern const Ipp32u SMS4_FK[4];
extern const Ipp32u SMS4_CK[32];
//////////////////////////////////////////////////////////////////////////////////////////////////////
/* S-box substitution (endian dependent!) */
#include "pcpbnuimpl.h"
#define SELECTION_BITS ((sizeof(BNU_CHUNK_T)/sizeof(Ipp8u)) -1)
#if defined(__INTEL_COMPILER)
__INLINE Ipp8u getSboxValue(Ipp8u x)
{
BNU_CHUNK_T selection = 0;
const BNU_CHUNK_T* SboxEntry = (BNU_CHUNK_T*)SMS4_Sbox;
BNU_CHUNK_T i_sel = x/sizeof(BNU_CHUNK_T); /* selection index */
BNU_CHUNK_T i;
for(i=0; i<sizeof(SMS4_Sbox)/sizeof(BNU_CHUNK_T); i++) {
BNU_CHUNK_T mask = (i==i_sel)? (BNU_CHUNK_T)(-1) : 0; /* ipp and IPP build specific avoid jump instruction here */
selection |= SboxEntry[i] & mask;
}
selection >>= (x & SELECTION_BITS)*8;
return (Ipp8u)(selection & 0xFF);
}
#else
#include "pcpmask_ct.h"
__INLINE Ipp8u getSboxValue(Ipp8u x)
{
BNU_CHUNK_T selection = 0;
const BNU_CHUNK_T* SboxEntry = (BNU_CHUNK_T*)SMS4_Sbox;
Ipp32u _x = x/sizeof(BNU_CHUNK_T);
Ipp32u i;
for(i=0; i<sizeof(SMS4_Sbox)/sizeof(BNU_CHUNK_T); i++) {
BNS_CHUNK_T mask = cpIsEqu_ct(_x, i);
selection |= SboxEntry[i] & mask;
}
selection >>= (x & SELECTION_BITS)*8;
return (Ipp8u)(selection & 0xFF);
}
#endif
__INLINE Ipp32u cpSboxT_SMS4(Ipp32u x)
{
Ipp32u y = getSboxValue(x & 0xFF);
y |= getSboxValue((x>> 8) & 0xFF) <<8;
y |= getSboxValue((x>>16) & 0xFF) <<16;
y |= getSboxValue((x>>24) & 0xFF) <<24;
return y;
}
/* key expansion transformation:
- linear Lilear
- mixer Mix
*/
__INLINE Ipp32u cpExpKeyLinear_SMS4(Ipp32u x)
{
return x^ROL32(x,13)^ROL32(x,23);
}
__INLINE Ipp32u cpExpKeyMix_SMS4(Ipp32u x)
{
return cpExpKeyLinear_SMS4( cpSboxT_SMS4(x) );
}
/* cipher transformations:
- linear Lilear
- mixer Mix
*/
__INLINE Ipp32u cpCipherLinear_SMS4(Ipp32u x)
{
return x^ROL32(x,2)^ROL32(x,10)^ROL32(x,18)^ROL32(x,24);
}
__INLINE Ipp32u cpCipherMix_SMS4(Ipp32u x)
{
return cpCipherLinear_SMS4( cpSboxT_SMS4(x) );
}
//////////////////////////////////////////////////////////////////////////////////////////////
#define cpSMS4_Cipher OWNAPI(cpSMS4_Cipher)
void cpSMS4_Cipher(Ipp8u* otxt, const Ipp8u* itxt, const Ipp32u* pRoundKeys);
#if (_IPP>=_IPP_P8) || (_IPP32E>=_IPP32E_Y8)
#define cpSMS4_SetRoundKeys_aesni OWNAPI(cpSMS4_SetRoundKeys_aesni)
void cpSMS4_SetRoundKeys_aesni(Ipp32u* pRounKey, const Ipp8u* pSecretKey);
#define cpSMS4_ECB_aesni_x1 OWNAPI(cpSMS4_ECB_aesni_x1)
void cpSMS4_ECB_aesni_x1(Ipp8u* pOut, const Ipp8u* pInp, const Ipp32u* pRKey);
#define cpSMS4_ECB_aesni OWNAPI(cpSMS4_ECB_aesni)
int cpSMS4_ECB_aesni(Ipp8u* pDst, const Ipp8u* pSrc, int nLen, const Ipp32u* pRKey);
#define cpSMS4_CBC_dec_aesni OWNAPI(cpSMS4_CBC_dec_aesni)
int cpSMS4_CBC_dec_aesni(Ipp8u* pDst, const Ipp8u* pSrc, int nLen, const Ipp32u* pRKey, Ipp8u* pIV);
#define cpSMS4_CTR_aesni OWNAPI(cpSMS4_CTR_aesni)
int cpSMS4_CTR_aesni(Ipp8u* pOut, const Ipp8u* pInp, int len, const Ipp32u* pRKey, const Ipp8u* pCtrMask, Ipp8u* pCtr);
#if (_IPP>=_IPP_H9) || (_IPP32E>=_IPP32E_L9)
#define cpSMS4_ECB_aesni_x12 OWNAPI(cpSMS4_ECB_aesni_x12)
int cpSMS4_ECB_aesni_x12(Ipp8u* pOut, const Ipp8u* pInp, int len, const Ipp32u* pRKey);
#define cpSMS4_CBC_dec_aesni_x12 OWNAPI(cpSMS4_CBC_dec_aesni_x12)
int cpSMS4_CBC_dec_aesni_x12(Ipp8u* pOut, const Ipp8u* pInp, int len, const Ipp32u* pRKey, Ipp8u* pIV);
#define cpSMS4_CTR_aesni_x4 OWNAPI(cpSMS4_CTR_aesni_x4)
int cpSMS4_CTR_aesni_x4(Ipp8u* pOut, const Ipp8u* pInp, int len, const Ipp32u* pRKey, const Ipp8u* pCtrMask, Ipp8u* pCtr);
#endif
#endif
#define cpProcessSMS4_ctr OWNAPI(cpProcessSMS4_ctr)
IppStatus cpProcessSMS4_ctr(const Ipp8u* pSrc, Ipp8u* pDst, int dataLen, const IppsSMS4Spec* pCtx, Ipp8u* pCtrValue, int ctrNumBitSize);
#define cpSMS4_SetRoundKeys OWNAPI(cpSMS4_SetRoundKeys)
void cpSMS4_SetRoundKeys(Ipp32u* pRounKey, const Ipp8u* pKey);
#endif /* _PCP_SMS4_H */
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