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| |
| /* |
| // |
| // Purpose: |
| // Cryptography Primitive. |
| // Internal Definitions of AVX512 Montgomery Exp |
| // |
| */ |
| #include "owncp.h" |
| |
| #if (_IPP32E>=_IPP32E_K0) |
| |
| #include "pcpbnuimpl.h" |
| #include "pcpngmontexpstuff.h" |
| |
| #define RSA_AVX512_MIN_BITSIZE (1024) |
| #define RSA_AVX512_MAX_BITSIZE (13*1024) |
| |
| #define NORM_DIGSIZE_AVX512 (BITSIZE(Ipp64u)) |
| #define NORM_BASE_AVX512 ((Ipp64u)1<<NORM_DIGSIZE_AVX512) |
| #define NORM_MASK_AVX512 (NORM_BASE_AVX512-1) |
| |
| #define EXP_DIGIT_SIZE_AVX512 (52) |
| #define EXP_DIGIT_BASE_AVX512 (1<<EXP_DIGIT_SIZE_AVX512) |
| #define EXP_DIGIT_MASK_AVX512 ((Ipp64u)0xFFFFFFFFFFFFF) |
| |
| /* number of digits */ |
| __INLINE int cpDigitNum_avx512(int bitSize, int digSize) |
| { return (bitSize + digSize-1)/digSize; } |
| |
| /* number of "EXP_DIGIT_SIZE_AVX512" chunks in "bitSize" bit string matched for AMM */ |
| __INLINE cpSize numofVariable_avx512(int modulusBits) |
| { |
| cpSize ammBitSize = 2 + cpDigitNum_avx512(modulusBits, BITSIZE(BNU_CHUNK_T)) * BITSIZE(BNU_CHUNK_T); |
| cpSize redNum = cpDigitNum_avx512(ammBitSize, EXP_DIGIT_SIZE_AVX512); |
| return redNum; |
| } |
| |
| /* buffer corresponding to numofVariable_avx2() */ |
| /* cpMontExp_avx512_BufferSize() */ |
| __INLINE int numofVariableBuff_avx512(int len) |
| { |
| int tail = len%8; |
| if(0==tail) tail = 8; |
| return len + (8-tail); |
| } |
| |
| /* exponentiation buffer size */ |
| #define gsMontExpBinBuffer_avx512 OWNAPI(gsMontExpBinBuffer_avx512) |
| #define gsMontExpWinBuffer_avx512 OWNAPI(gsMontExpWinBuffer_avx512) |
| cpSize gsMontExpBinBuffer_avx512(int modulusBits); |
| cpSize gsMontExpWinBuffer_avx512(int modulusBits); |
| |
| /* exponentiations */ |
| #define gsMontExpBin_BNU_avx512 OWNAPI(gsMontExpBin_BNU_avx512) |
| cpSize gsMontExpBin_BNU_avx512(BNU_CHUNK_T* dataY, |
| const BNU_CHUNK_T* dataX, cpSize nsX, |
| const BNU_CHUNK_T* dataE, cpSize nsE, |
| gsModEngine* pMont, |
| BNU_CHUNK_T* pBuffer); |
| |
| #define gsMontExpWin_BNU_avx512 OWNAPI(gsMontExpWin_BNU_avx512) |
| cpSize gsMontExpWin_BNU_avx512(BNU_CHUNK_T* dataY, |
| const BNU_CHUNK_T* dataX, cpSize nsX, |
| const BNU_CHUNK_T* dataE, cpSize nsE, |
| gsModEngine* pMont, |
| BNU_CHUNK_T* pBuffer); |
| |
| #define gsMontExpBin_BNU_sscm_avx512 OWNAPI(gsMontExpBin_BNU_sscm_avx512) |
| cpSize gsMontExpBin_BNU_sscm_avx512(BNU_CHUNK_T* dataY, |
| const BNU_CHUNK_T* dataX, cpSize nsX, |
| const BNU_CHUNK_T* dataE, cpSize nsE, |
| gsModEngine* pMont, |
| BNU_CHUNK_T* pBuffer); |
| |
| #define gsMontExpWin_BNU_sscm_avx512 OWNAPI(gsMontExpWin_BNU_sscm_avx512) |
| cpSize gsMontExpWin_BNU_sscm_avx512(BNU_CHUNK_T* dataY, |
| const BNU_CHUNK_T* dataX, cpSize nsX, |
| const BNU_CHUNK_T* dataE, cpSize nsE, |
| gsModEngine* pMont, |
| BNU_CHUNK_T* pBuffer); |
| |
| #endif /* _IPP32E_K0 */ |