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Diffstat (limited to 'ext/ipp/sources/ippcp/pcpgfpecessm2.h')
| -rw-r--r-- | ext/ipp/sources/ippcp/pcpgfpecessm2.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/ext/ipp/sources/ippcp/pcpgfpecessm2.h b/ext/ipp/sources/ippcp/pcpgfpecessm2.h new file mode 100644 index 0000000..543f680 --- /dev/null +++ b/ext/ipp/sources/ippcp/pcpgfpecessm2.h @@ -0,0 +1,97 @@ +/******************************************************************************* +* Copyright 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: +// ES encryption/decryption API +// +// +*/ + +#if !defined(_CP_GFP_ES_SM2_H) +#define _CP_GFP_ES_SM2_H + +#include "owncp.h" + +typedef enum { + ECESAlgoInit, + ECESAlgoKeySet, + ECESAlgoProcessing, + ECESAlgoFinished +} ECESAlgoState; + +struct _cpStateECES_SM2 { + IppCtxId idCtx; + Ipp8u* pSharedSecret; + Ipp32s sharedSecretLen; + + ECESAlgoState state; + + Ipp32u kdfCounter; + Ipp8u pKdfWindow[IPP_SM3_DIGEST_BITSIZE / BYTESIZE]; + Ipp8u wasNonZero; + Ipp8u kdfIndex; + + IppsHashState_rmf* pKdfHasher; + IppsHashState_rmf* pTagHasher; +}; + +/* get a byte, update 0-kdf status */ +__INLINE Ipp8u cpECES_SM2KdfNextByte(IppsECESState_SM2* pState) { + if (pState->kdfIndex == IPP_SM3_DIGEST_BITSIZE / BYTESIZE) { + ++pState->kdfCounter; + pState->kdfIndex = 0; + + { + Ipp8u ctnStr[sizeof(Ipp32u)]; + ippsHashUpdate_rmf(pState->pSharedSecret, pState->sharedSecretLen, pState->pKdfHasher); + U32_TO_HSTRING(ctnStr, pState->kdfCounter); + ippsHashUpdate_rmf(ctnStr, sizeof(Ipp32u), pState->pKdfHasher); + ippsHashFinal_rmf(pState->pKdfWindow, pState->pKdfHasher); + } + } + + pState->wasNonZero |= pState->pKdfWindow[pState->kdfIndex]; + + return pState->pKdfWindow[pState->kdfIndex++]; +} + +#endif
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