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Diffstat (limited to 'ext/ipp/sources/ippcp/pcpgfpec_selectp521r1w5.c')
-rw-r--r-- | ext/ipp/sources/ippcp/pcpgfpec_selectp521r1w5.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/ext/ipp/sources/ippcp/pcpgfpec_selectp521r1w5.c b/ext/ipp/sources/ippcp/pcpgfpec_selectp521r1w5.c new file mode 100644 index 0000000..58abea1 --- /dev/null +++ b/ext/ipp/sources/ippcp/pcpgfpec_selectp521r1w5.c @@ -0,0 +1,87 @@ +/******************************************************************************* +* Copyright 2010-2018 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: +// Intel(R) Integrated Performance Primitives. Cryptography Primitives. +// Internal EC over GF(p^m) basic Definitions & Function Prototypes +// +// Context: +// p521r1_select_ap_w5() +// +*/ + +#include "owndefs.h" +#include "owncp.h" +#include "pcpgfpecstuff.h" +#include "pcpmask_ct.h" + +/* +// select affine point +*/ +#if (_IPP32E < _IPP32E_M7) +void p521r1_select_ap_w5(BNU_CHUNK_T* pVal, const BNU_CHUNK_T* pTbl, int idx) +{ + #define OPERAND_BITSIZE (521) + #define LEN_P521 (BITS_BNU_CHUNK(OPERAND_BITSIZE)) + #define LEN_P521_APOINT (2*LEN_P521) + + const int tblLen = 16; + int i; + unsigned int n; + + /* clear output affine point */ + for(n=0; n<LEN_P521_APOINT; n++) + pVal[n] = 0; + + /* select point */ + for(i=1; i<=tblLen; i++) { + BNU_CHUNK_T mask = cpIsEqu_ct(i, idx); + for(n=0; n<LEN_P521_APOINT; n++) + pVal[n] |= (pTbl[n] & mask); + pTbl += LEN_P521_APOINT; + } + + #undef OPERAND_BITSIZE + #undef LEN_P521 + #undef P521_POINT_AFFINE +} +#endif |