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Diffstat (limited to 'ext/ipp/sources/ippcp/pcpaesauthgcm.h')
| -rw-r--r-- | ext/ipp/sources/ippcp/pcpaesauthgcm.h | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/ext/ipp/sources/ippcp/pcpaesauthgcm.h b/ext/ipp/sources/ippcp/pcpaesauthgcm.h new file mode 100644 index 0000000..d6cb24c --- /dev/null +++ b/ext/ipp/sources/ippcp/pcpaesauthgcm.h @@ -0,0 +1,204 @@ +/******************************************************************************* +* Copyright 2015-2018 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_AESAUTH_GCM_H) +#define _CP_AESAUTH_GCM_H + +#include "owncp.h" +#include "pcpaesm.h" + +#define BLOCK_SIZE (MBS_RIJ128) + +/* GCM Hash prototype: GHash = GHash*HKey mod G() */ +typedef void (*MulGcm_)(Ipp8u* pGHash, const Ipp8u* pHKey, const void* pParam); + +/* GCM Authentication prototype: GHash = (GHash^src[])*HKey mod G() */ +typedef void (*Auth_)(Ipp8u* pHash, const Ipp8u* pSrc, int len, const Ipp8u* pHKey, const void* pParam); + +/* GCM Encrypt_Authentication prototype */ +typedef void (*Encrypt_)(Ipp8u* pDst, const Ipp8u* pSrc, int len, IppsAES_GCMState* pCtx); + +/* GCM Authentication_Decrypt prototype */ +typedef void (*Decrypt_)(Ipp8u* pDst, const Ipp8u* pSrc, int len, IppsAES_GCMState* pCtx); + +typedef enum { + GcmInit, + GcmIVprocessing, + GcmAADprocessing, + GcmTXTprocessing +} GcmState; + +struct _cpAES_GCM { + IppCtxId idCtx; /* AES-GCM id */ + GcmState state; /* GCM state: Init, IV|AAD|TXT proccessing */ + Ipp64u ivLen; /* IV length (bytes) */ + Ipp64u aadLen; /* header length (bytes) */ + Ipp64u txtLen; /* text length (bytes) */ + + int bufLen; /* staff buffer length */ + __ALIGN16 /* aligned buffers */ + Ipp8u counter[BLOCK_SIZE]; /* counter */ + Ipp8u ecounter0[BLOCK_SIZE]; /* encrypted initial counter */ + Ipp8u ecounter[BLOCK_SIZE]; /* encrypted counter */ + Ipp8u ghash[BLOCK_SIZE]; /* ghash accumulator */ + + MulGcm_ hashFun; /* AES-GCM mul function */ + Auth_ authFun; /* authentication function */ + Encrypt_ encFun; /* encryption & authentication */ + Decrypt_ decFun; /* authentication & decryption */ + + __ALIGN16 /* aligned AES context */ + IppsAESSpec cipher; + + __ALIGN16 /* aligned pre-computed data: */ + Ipp8u multiplier[BLOCK_SIZE]; /* - (default) hKey */ + /* - (ase_ni) hKey*t, (hKey*t)^2, (hKey*t)^4 */ + /* - (safe) hKey*(t^i), i=0,...,127 */ +}; + +#define CTR_POS 12 + +/* alignment */ +#define AESGCM_ALIGNMENT (16) + +#define PRECOMP_DATA_SIZE_AES_NI_AESGCM (BLOCK_SIZE*4) +#define PRECOMP_DATA_SIZE_FAST2K (BLOCK_SIZE*128) + +/* +// Useful macros +*/ +#define AESGCM_ID(stt) ((stt)->idCtx) +#define AESGCM_STATE(stt) ((stt)->state) + +#define AESGCM_IV_LEN(stt) ((stt)->ivLen) +#define AESGCM_AAD_LEN(stt) ((stt)->aadLen) +#define AESGCM_TXT_LEN(stt) ((stt)->txtLen) + +#define AESGCM_BUFLEN(stt) ((stt)->bufLen) +#define AESGCM_COUNTER(stt) ((stt)->counter) +#define AESGCM_ECOUNTER0(stt) ((stt)->ecounter0) +#define AESGCM_ECOUNTER(stt) ((stt)->ecounter) +#define AESGCM_GHASH(stt) ((stt)->ghash) + +#define AESGCM_HASH(stt) ((stt)->hashFun) +#define AESGCM_AUTH(stt) ((stt)->authFun) +#define AESGCM_ENC(stt) ((stt)->encFun) +#define AESGCM_DEC(stt) ((stt)->decFun) + +#define AESGCM_CIPHER(stt) (IppsAESSpec*)(&((stt)->cipher)) + +#define AESGCM_HKEY(stt) ((stt)->multiplier) +#define AESGCM_CPWR(stt) ((stt)->multiplier) +#define AES_GCM_MTBL(stt) ((stt)->multiplier) + +#define AESGCM_VALID_ID(stt) (AESGCM_ID((stt))==idCtxAESGCM) + + +__INLINE void IncrementCounter32(Ipp8u* pCtr) +{ + int i; + for(i=BLOCK_SIZE-1; i>=CTR_POS && 0==(Ipp8u)(++pCtr[i]); i--) ; +} + + +#if (_IPP>=_IPP_P8) || (_IPP32E>=_IPP32E_Y8) +#define AesGcmPrecompute_avx OWNAPI(AesGcmPrecompute_avx) + void AesGcmPrecompute_avx(Ipp8u* pPrecomputeData, const Ipp8u* pHKey); +#define AesGcmMulGcm_avx OWNAPI(AesGcmMulGcm_avx) + void AesGcmMulGcm_avx(Ipp8u* pGhash, const Ipp8u* pHkey, const void* pParam); +#define AesGcmAuth_avx OWNAPI(AesGcmAuth_avx) + void AesGcmAuth_avx(Ipp8u* pGhash, const Ipp8u* pSrc, int len, const Ipp8u* pHkey, const void* pParam); +#define wrpAesGcmEnc_avx OWNAPI(wrpAesGcmEnc_avx) + void wrpAesGcmEnc_avx(Ipp8u* pDst, const Ipp8u* pSrc, int len, IppsAES_GCMState* pCtx); +#define wrpAesGcmDec_avx OWNAPI(wrpAesGcmDec_avx) + void wrpAesGcmDec_avx(Ipp8u* pDst, const Ipp8u* pSrc, int len, IppsAES_GCMState* pCtx); +#define AesGcmEnc_avx OWNAPI(AesGcmEnc_avx) + void AesGcmEnc_avx(Ipp8u* pDst, const Ipp8u* pSrc, int len, + RijnCipher cipher, int nr, const Ipp8u* pKeys, + Ipp8u* pGhash, Ipp8u* pCnt, Ipp8u* pECnt, const Ipp8u* pMuls); +#define AesGcmDec_avx OWNAPI(AesGcmDec_avx) + void AesGcmDec_avx(Ipp8u* pDst, const Ipp8u* pSrc, int len, + RijnCipher cipher, int nr, const Ipp8u* pKeys, + Ipp8u* pGhash, Ipp8u* pCnt, Ipp8u* pECnt, const Ipp8u* pMuls); +#endif + +#define AesGcmPrecompute_table2K OWNAPI(AesGcmPrecompute_table2K) + void AesGcmPrecompute_table2K(Ipp8u* pPrecomputeData, const Ipp8u* pHKey); +#define AesGcmMulGcm_table2K OWNAPI(AesGcmMulGcm_table2K) + void AesGcmMulGcm_table2K(Ipp8u* pGhash, const Ipp8u* pHkey, const void* pParam); +#define AesGcmAuth_table2K OWNAPI(AesGcmAuth_table2K) + void AesGcmAuth_table2K(Ipp8u* pGhash, const Ipp8u* pSrc, int len, const Ipp8u* pHkey, const void* pParam); +#define wrpAesGcmEnc_table2K OWNAPI(wrpAesGcmEnc_table2K) + void wrpAesGcmEnc_table2K(Ipp8u* pDst, const Ipp8u* pSrc, int len, IppsAES_GCMState* pCtx); +#define wrpAesGcmDec_table2K OWNAPI(wrpAesGcmDec_table2K) + void wrpAesGcmDec_table2K(Ipp8u* pDst, const Ipp8u* pSrc, int len, IppsAES_GCMState* pCtx); + +extern const Ipp16u AesGcmConst_table[256]; /* precomputed reduction table */ + +static int cpSizeofCtx_AESGCM(void) +{ + int precomp_size; + + #if (_IPP>=_IPP_P8) || (_IPP32E>=_IPP32E_Y8) + if( IsFeatureEnabled(ippCPUID_AES|ippCPUID_CLMUL) ) + precomp_size = PRECOMP_DATA_SIZE_AES_NI_AESGCM; + else + #endif + precomp_size = PRECOMP_DATA_SIZE_FAST2K; + + /* decrease precomp_size as soon as BLOCK_SIZE bytes already reserved in context */ + precomp_size -= BLOCK_SIZE; + + return sizeof(IppsAES_GCMState) + +precomp_size + +AESGCM_ALIGNMENT-1; +} + +#endif /* _CP_AESAUTH_GCM_H*/ |