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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
* 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 DES based Encrypt/Decrypt Function Prototypes
//
//
*/
#if !defined(_PCP_DES_H)
#define _PCP_DES_H
/*
// really DES round key saved in terms of pear of 24-bit half mentioned in FIPS 46-3
*/
typedef Ipp64u RoundKeyDES;
typedef Ipp32u HalfRoundKeyDES;
/*
// DES context
*/
struct _cpDES {
IppCtxId idCtx; /* DES spec identifier */
Ipp32u dummy; /* alignment only (linux problem)*/
RoundKeyDES enc_keys[16]; /* array of keys for encryprion */
RoundKeyDES dec_keys[16]; /* array of keys for decryprion */
};
/* alignment */
#define DES_ALIGNMENT ((int)(sizeof(Ipp64u)))
#define MBS_DES (8) /* data block (bytes) */
/*
// Useful macros
*/
#define DES_ID(ctx) ((ctx)->idCtx)
#define DES_EKEYS(ctx) ((ctx)->enc_keys)
#define DES_DKEYS(ctx) ((ctx)->dec_keys)
#define DES_ID_TEST(ctx) (DES_ID((ctx))==idCtxDES)
/*
// Internal Tables
*/
#define MITIGATED (4)
#define IMPLEMENTATION MITIGATED
#if (IMPLEMENTATION == MITIGATED)
extern const __ALIGN64 Ipp32u DESspbox[16*16];
#endif
/*
// internal functions
*/
#define SetKey_DES OWNAPI(SetKey_DES)
void SetKey_DES(const Ipp8u* pKey, IppsDESSpec* pCtx);
#define Cipher_DES OWNAPI(Cipher_DES)
Ipp64u Cipher_DES(Ipp64u inpBlk, const RoundKeyDES* pRKey, const Ipp32u spbox[]);
#define ENCRYPT_DES(blk, pCtx) Cipher_DES((blk), DES_EKEYS((pCtx)), DESspbox)
#define DECRYPT_DES(blk, pCtx) Cipher_DES((blk), DES_DKEYS((pCtx)), DESspbox)
/* TDES prototypes */
#define ECB_TDES OWNAPI(ECB_TDES)
void ECB_TDES(const Ipp64u* pSrc, Ipp64u* pDst, int nBlocks, const RoundKeyDES* pRKey[3], const Ipp32u spbox[]);
#define EncryptCBC_TDES OWNAPI(EncryptCBC_TDES)
void EncryptCBC_TDES(const Ipp64u* pSrc, Ipp64u* pDst, int nBlocks, const RoundKeyDES* pRKey[3], Ipp64u iv, const Ipp32u spbox[]);
#define DecryptCBC_TDES OWNAPI(DecryptCBC_TDES)
void DecryptCBC_TDES(const Ipp64u* pSrc, Ipp64u* pDst, int nBlocks, const RoundKeyDES* pRKey[3], Ipp64u iv, const Ipp32u spbox[]);
#endif /* _PCP_DES_H */
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