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Diffstat (limited to 'ext/ipp/sources/ippcp/pcpmontred.c')
| -rw-r--r-- | ext/ipp/sources/ippcp/pcpmontred.c | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/ext/ipp/sources/ippcp/pcpmontred.c b/ext/ipp/sources/ippcp/pcpmontred.c new file mode 100644 index 0000000..dc9fe25 --- /dev/null +++ b/ext/ipp/sources/ippcp/pcpmontred.c @@ -0,0 +1,99 @@ +/******************************************************************************* +* 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. +*******************************************************************************/ + +/* +// Intel(R) Integrated Performance Primitives +// Cryptographic Primitives (ippcp) +// +*/ + +#include "owncp.h" +#include "pcpbnuarith.h" + + +#if defined(_USE_C_cpMontRedAdc_BNU_) +#pragma message ("C version of cpMontRedAdc_BNU: ON") +#else +#pragma message ("C version of cpMontRedAdc_BNU: OFF") +#endif + +#if !((_IPP==_IPP_W7) || \ + (_IPP==_IPP_T7) || \ + (_IPP==_IPP_V8) || \ + (_IPP==_IPP_P8) || \ + (_IPP>=_IPP_G9) || \ + (_IPP==_IPP_S8) || \ + (_IPP32E==_IPP32E_M7) || \ + (_IPP32E==_IPP32E_U8) || \ + (_IPP32E==_IPP32E_Y8) || \ + (_IPP32E>=_IPP32E_E9) || \ + (_IPP32E==_IPP32E_N8)) || \ + defined(_USE_C_cpMontRedAdc_BNU_) +#define cpMontRedAdc_BNU OWNAPI(cpMontRedAdc_BNU) +void cpMontRedAdc_BNU(BNU_CHUNK_T* pR, + BNU_CHUNK_T* pProduct, + const BNU_CHUNK_T* pModulus, cpSize nsM, BNU_CHUNK_T m0) +{ + BNU_CHUNK_T carry; + BNU_CHUNK_T extension; + + cpSize n; + for(n=0, carry = 0; n<(nsM-1); n++) { + BNU_CHUNK_T u = pProduct[n]*m0; + BNU_CHUNK_T t = pProduct[nsM +n +1] + carry; + + extension = cpAddMulDgt_BNU(pProduct+n, pModulus, nsM, u); + ADD_AB(carry, pProduct[nsM+n], pProduct[nsM+n], extension); + t += carry; + + carry = t<pProduct[nsM+n+1]; + pProduct[nsM+n+1] = t; + } + + m0 *= pProduct[nsM-1]; + extension = cpAddMulDgt_BNU(pProduct+nsM-1, pModulus, nsM, m0); + ADD_AB(extension, pProduct[2*nsM-1], pProduct[2*nsM-1], extension); + + carry |= extension; + carry -= cpSub_BNU(pR, pProduct+nsM, pModulus, nsM); + /* condition copy: R = carry? Product+mSize : R */ + MASKED_COPY_BNU(pR, carry, pProduct+nsM, pR, nsM); +} +#endif |