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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.
// Message Authentication Algorithm
// Internal Definitions and Internal Functions Prototypes
//
//
*/
#if !defined(_CP_AES_CCM_H)
#define _CP_AES_CCM_H
#include "pcprij.h"
#include "pcpaesm.h"
struct _cpAES_CCM {
IppCtxId idCtx; /* CCM ID */
Ipp64u msgLen; /* length of message to be processed */
Ipp64u lenProcessed; /* message length has been processed */
Ipp32u tagLen; /* length of authentication tag */
Ipp32u counterVal; /* currnt couter value */
Ipp8u ctr0[MBS_RIJ128]; /* counter value */
Ipp8u s0[MBS_RIJ128]; /* S0 = ENC(CTR0) content */
Ipp8u si[MBS_RIJ128]; /* Si = ENC(CTRi) content */
Ipp8u blk[MBS_RIJ128]; /* temporary data container */
Ipp8u mac[MBS_RIJ128]; /* current MAC value */
Ipp8u cipher[sizeof(IppsAESSpec)+AES_ALIGNMENT-1];
};
/* alignment */
#define AESCCM_ALIGNMENT ((int)(sizeof(void*)))
/*
// access macros
*/
#define AESCCM_ID(stt) ((stt)->idCtx)
#define AESCCM_MSGLEN(stt) ((stt)->msgLen)
#define AESCCM_LENPRO(stt) ((stt)->lenProcessed)
#define AESCCM_TAGLEN(stt) ((stt)->tagLen)
#define AESCCM_COUNTER(stt) ((stt)->counterVal)
#define AESCCM_CTR0(stt) ((stt)->ctr0)
#define AESCCM_S0(stt) ((stt)->s0)
#define AESCCM_Si(stt) ((stt)->si)
#define AESCCM_BLK(stt) ((stt)->blk)
#define AESCCM_MAC(stt) ((stt)->mac)
#define AESCCM_CIPHER(stt) (IppsAESSpec*)(&((stt)->cipher))
#define AESCCM_CIPHER_ALIGNED(stt) (IppsAESSpec*)( IPP_ALIGNED_PTR( ((stt)->cipher), AES_ALIGNMENT ) )
/* valid context ID */
#define VALID_AESCCM_ID(ctx) (AESCCM_ID((ctx))==idCtxAESCCM)
/*
// Internal functions
*/
#if (_IPP>=_IPP_P8) || (_IPP32E>=_IPP32E_Y8)
#define AuthEncrypt_RIJ128_AES_NI OWNAPI(AuthEncrypt_RIJ128_AES_NI)
void AuthEncrypt_RIJ128_AES_NI(const Ipp8u* inpBlk, Ipp8u* outBlk, int nr, const void* pRKey, Ipp32u len, void* pLocalCtx);
#define DecryptAuth_RIJ128_AES_NI OWNAPI(DecryptAuth_RIJ128_AES_NI)
void DecryptAuth_RIJ128_AES_NI(const Ipp8u* inpBlk, Ipp8u* outBlk, int nr, const void* pRKey, Ipp32u len, void* pLocalCtx);
#endif
/* Counter block formatter */
static Ipp8u* CounterEnc(Ipp32u* pBuffer, int fmt, Ipp64u counter)
{
#if (IPP_ENDIAN == IPP_LITTLE_ENDIAN)
pBuffer[0] = ENDIANNESS(HIDWORD(counter));
pBuffer[1] = ENDIANNESS(LODWORD(counter));
#else
pBuffer[0] = HIDWORD(counter);
pBuffer[1] = LODWORD(counter);
#endif
return (Ipp8u*)pBuffer + 8 - fmt;
}
static int cpSizeofCtx_AESCCM(void)
{
return sizeof(IppsAES_CCMState) + AESCCM_ALIGNMENT-1;
}
#endif /* _CP_AES_CCM_H*/
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