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Diffstat (limited to 'ext/ipp/sources/ippcp/pcpaes_sivstuff.h')
| -rw-r--r-- | ext/ipp/sources/ippcp/pcpaes_sivstuff.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/ext/ipp/sources/ippcp/pcpaes_sivstuff.h b/ext/ipp/sources/ippcp/pcpaes_sivstuff.h new file mode 100644 index 0000000..6cda020 --- /dev/null +++ b/ext/ipp/sources/ippcp/pcpaes_sivstuff.h @@ -0,0 +1,114 @@ +/******************************************************************************* +* 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. +// AES-SIV Functions (RFC 5297) +// +// Contents: +// Stuff() +// +*/ + +#include "owndefs.h" +#include "owncp.h" +#include "pcpcmac.h" +#include "pcpaesm.h" +#include "pcptool.h" + +#if !defined(_PCP_AES_SIV_STUFF_H_) + +#define _PCP_AES_SIV_STUFF_H_ +//////////////////////////////////////////////////////////// +__INLINE void cpAES_CMAC(Ipp8u mac[MBS_RIJ128], const Ipp8u* pSrc, int len, IppsAES_CMACState* pCtx) +{ + ippsAES_CMACUpdate(pSrc, len, pCtx); + ippsAES_CMACFinal(mac, MBS_RIJ128, pCtx); +} +__INLINE IppStatus cpAES_S2V_init(Ipp8u v[MBS_RIJ128], const Ipp8u* pKey, int keyLen, IppsAES_CMACState* pCtx, int ctxSize) +{ + IppStatus sts = ippsAES_CMACInit(pKey, keyLen, pCtx, ctxSize); + if(ippStsNoErr==sts) { + PaddBlock(0, v, MBS_RIJ128); + cpAES_CMAC(v, v, MBS_RIJ128, pCtx); + } + return sts; +} +__INLINE Ipp8u* double16(Ipp8u out[MBS_RIJ128], const Ipp8u inp[MBS_RIJ128]) +{ + /* double inp */ + Ipp32u carry = 0; + int n; + for(n=0; n<MBS_RIJ128; n++) { + Ipp32u x = inp[MBS_RIJ128-1-n] + inp[MBS_RIJ128-1-n] + carry; + out[MBS_RIJ128-1-n] = (Ipp8u)x; + carry = (x>>8) & 0xFF; + } + + out[MBS_RIJ128-1] ^= ((Ipp8u)(0-carry) & 0x87); + return out; +} +__INLINE void cpAES_S2V_update(Ipp8u v[MBS_RIJ128], const Ipp8u* pSrc, int len, IppsAES_CMACState* pCtx) +{ + Ipp8u t[MBS_RIJ128]; + cpAES_CMAC(t, pSrc, len, pCtx); + double16(v, v); + XorBlock16(v, t, v); +} + +static void cpAES_S2V_final(Ipp8u v[MBS_RIJ128], const Ipp8u* pSrc, int len, IppsAES_CMACState* pCtx) +{ + Ipp8u t[MBS_RIJ128]; + + if(len>=MBS_RIJ128) { + ippsAES_CMACUpdate(pSrc, len-MBS_RIJ128, pCtx); + XorBlock16(pSrc+len-MBS_RIJ128, v, t); + } + else { + double16(t, v); + XorBlock(pSrc, t, t, len); + t[len] ^= 0x80; + } + cpAES_CMAC(v, t, MBS_RIJ128, pCtx); +} + +#endif /*_PCP_AES_SIV_STUFF_H_*/ |