diff options
Diffstat (limited to 'src/libs/3rdparty/botan/src/lib/hash/sha1/sha1_sse2/sha1_sse2.cpp')
| -rw-r--r-- | src/libs/3rdparty/botan/src/lib/hash/sha1/sha1_sse2/sha1_sse2.cpp | 335 |
1 files changed, 335 insertions, 0 deletions
diff --git a/src/libs/3rdparty/botan/src/lib/hash/sha1/sha1_sse2/sha1_sse2.cpp b/src/libs/3rdparty/botan/src/lib/hash/sha1/sha1_sse2/sha1_sse2.cpp new file mode 100644 index 0000000000..88e5a0d2c7 --- /dev/null +++ b/src/libs/3rdparty/botan/src/lib/hash/sha1/sha1_sse2/sha1_sse2.cpp @@ -0,0 +1,335 @@ +/* +* SHA-1 using SSE2 +* Based on public domain code by Dean Gaudet +* (http://arctic.org/~dean/crypto/sha1.html) +* (C) 2009-2011 Jack Lloyd +* +* Botan is released under the Simplified BSD License (see license.txt) +*/ + +#include <botan/sha160.h> +#include <emmintrin.h> + +namespace Botan { + +namespace SHA1_SSE2_F { + +namespace { + +/* +* First 16 bytes just need byte swapping. Preparing just means +* adding in the round constants. +*/ + +#define prep00_15(P, W) \ + do { \ + W = _mm_shufflehi_epi16(W, _MM_SHUFFLE(2, 3, 0, 1)); \ + W = _mm_shufflelo_epi16(W, _MM_SHUFFLE(2, 3, 0, 1)); \ + W = _mm_or_si128(_mm_slli_epi16(W, 8), \ + _mm_srli_epi16(W, 8)); \ + P.u128 = _mm_add_epi32(W, K00_19); \ + } while(0) + +/* +For each multiple of 4, t, we want to calculate this: + +W[t+0] = rol(W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16], 1); +W[t+1] = rol(W[t-2] ^ W[t-7] ^ W[t-13] ^ W[t-15], 1); +W[t+2] = rol(W[t-1] ^ W[t-6] ^ W[t-12] ^ W[t-14], 1); +W[t+3] = rol(W[t] ^ W[t-5] ^ W[t-11] ^ W[t-13], 1); + +we'll actually calculate this: + +W[t+0] = rol(W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16], 1); +W[t+1] = rol(W[t-2] ^ W[t-7] ^ W[t-13] ^ W[t-15], 1); +W[t+2] = rol(W[t-1] ^ W[t-6] ^ W[t-12] ^ W[t-14], 1); +W[t+3] = rol( 0 ^ W[t-5] ^ W[t-11] ^ W[t-13], 1); +W[t+3] ^= rol(W[t+0], 1); + +the parameters are: + +W0 = &W[t-16]; +W1 = &W[t-12]; +W2 = &W[t- 8]; +W3 = &W[t- 4]; + +and on output: +prepared = W0 + K +W0 = W[t]..W[t+3] +*/ + +/* note that there is a step here where i want to do a rol by 1, which +* normally would look like this: +* +* r1 = psrld r0,$31 +* r0 = pslld r0,$1 +* r0 = por r0,r1 +* +* but instead i do this: +* +* r1 = pcmpltd r0,zero +* r0 = paddd r0,r0 +* r0 = psub r0,r1 +* +* because pcmpltd and paddd are available in both MMX units on +* efficeon, pentium-m, and opteron but shifts are available in +* only one unit. +*/ +#define prep(prep, XW0, XW1, XW2, XW3, K) \ + do { \ + __m128i r0, r1, r2, r3; \ + \ + /* load W[t-4] 16-byte aligned, and shift */ \ + r3 = _mm_srli_si128((XW3), 4); \ + r0 = (XW0); \ + /* get high 64-bits of XW0 into low 64-bits */ \ + r1 = _mm_shuffle_epi32((XW0), _MM_SHUFFLE(1,0,3,2)); \ + /* load high 64-bits of r1 */ \ + r1 = _mm_unpacklo_epi64(r1, (XW1)); \ + r2 = (XW2); \ + \ + r0 = _mm_xor_si128(r1, r0); \ + r2 = _mm_xor_si128(r3, r2); \ + r0 = _mm_xor_si128(r2, r0); \ + /* unrotated W[t]..W[t+2] in r0 ... still need W[t+3] */ \ + \ + r2 = _mm_slli_si128(r0, 12); \ + r1 = _mm_cmplt_epi32(r0, _mm_setzero_si128()); \ + r0 = _mm_add_epi32(r0, r0); /* shift left by 1 */ \ + r0 = _mm_sub_epi32(r0, r1); /* r0 has W[t]..W[t+2] */ \ + \ + r3 = _mm_srli_epi32(r2, 30); \ + r2 = _mm_slli_epi32(r2, 2); \ + \ + r0 = _mm_xor_si128(r0, r3); \ + r0 = _mm_xor_si128(r0, r2); /* r0 now has W[t+3] */ \ + \ + (XW0) = r0; \ + (prep).u128 = _mm_add_epi32(r0, K); \ + } while(0) + +/* +* SHA-160 F1 Function +*/ +inline void F1(uint32_t A, uint32_t& B, uint32_t C, uint32_t D, uint32_t& E, uint32_t msg) + { + E += (D ^ (B & (C ^ D))) + msg + rotl<5>(A); + B = rotl<30>(B); + } + +/* +* SHA-160 F2 Function +*/ +inline void F2(uint32_t A, uint32_t& B, uint32_t C, uint32_t D, uint32_t& E, uint32_t msg) + { + E += (B ^ C ^ D) + msg + rotl<5>(A); + B = rotl<30>(B); + } + +/* +* SHA-160 F3 Function +*/ +inline void F3(uint32_t A, uint32_t& B, uint32_t C, uint32_t D, uint32_t& E, uint32_t msg) + { + E += ((B & C) | ((B | C) & D)) + msg + rotl<5>(A); + B = rotl<30>(B); + } + +/* +* SHA-160 F4 Function +*/ +inline void F4(uint32_t A, uint32_t& B, uint32_t C, uint32_t D, uint32_t& E, uint32_t msg) + { + E += (B ^ C ^ D) + msg + rotl<5>(A); + B = rotl<30>(B); + } + +} + +} + +/* +* SHA-160 Compression Function using SSE for message expansion +*/ +//static +BOTAN_FUNC_ISA("sse2") +void SHA_160::sse2_compress_n(secure_vector<uint32_t>& digest, const uint8_t input[], size_t blocks) + { + using namespace SHA1_SSE2_F; + + const __m128i K00_19 = _mm_set1_epi32(0x5A827999); + const __m128i K20_39 = _mm_set1_epi32(0x6ED9EBA1); + const __m128i K40_59 = _mm_set1_epi32(0x8F1BBCDC); + const __m128i K60_79 = _mm_set1_epi32(0xCA62C1D6); + + uint32_t A = digest[0], + B = digest[1], + C = digest[2], + D = digest[3], + E = digest[4]; + + const __m128i* input_mm = reinterpret_cast<const __m128i*>(input); + + for(size_t i = 0; i != blocks; ++i) + { + union v4si { + uint32_t u32[4]; + __m128i u128; + }; + + v4si P0, P1, P2, P3; + + __m128i W0 = _mm_loadu_si128(&input_mm[0]); + prep00_15(P0, W0); + + __m128i W1 = _mm_loadu_si128(&input_mm[1]); + prep00_15(P1, W1); + + __m128i W2 = _mm_loadu_si128(&input_mm[2]); + prep00_15(P2, W2); + + __m128i W3 = _mm_loadu_si128(&input_mm[3]); + prep00_15(P3, W3); + + /* + Using SSE4; slower on Core2 and Nehalem + #define GET_P_32(P, i) _mm_extract_epi32(P.u128, i) + + Much slower on all tested platforms + #define GET_P_32(P,i) _mm_cvtsi128_si32(_mm_srli_si128(P.u128, i*4)) + */ + +#define GET_P_32(P, i) P.u32[i] + + F1(A, B, C, D, E, GET_P_32(P0, 0)); + F1(E, A, B, C, D, GET_P_32(P0, 1)); + F1(D, E, A, B, C, GET_P_32(P0, 2)); + F1(C, D, E, A, B, GET_P_32(P0, 3)); + prep(P0, W0, W1, W2, W3, K00_19); + + F1(B, C, D, E, A, GET_P_32(P1, 0)); + F1(A, B, C, D, E, GET_P_32(P1, 1)); + F1(E, A, B, C, D, GET_P_32(P1, 2)); + F1(D, E, A, B, C, GET_P_32(P1, 3)); + prep(P1, W1, W2, W3, W0, K20_39); + + F1(C, D, E, A, B, GET_P_32(P2, 0)); + F1(B, C, D, E, A, GET_P_32(P2, 1)); + F1(A, B, C, D, E, GET_P_32(P2, 2)); + F1(E, A, B, C, D, GET_P_32(P2, 3)); + prep(P2, W2, W3, W0, W1, K20_39); + + F1(D, E, A, B, C, GET_P_32(P3, 0)); + F1(C, D, E, A, B, GET_P_32(P3, 1)); + F1(B, C, D, E, A, GET_P_32(P3, 2)); + F1(A, B, C, D, E, GET_P_32(P3, 3)); + prep(P3, W3, W0, W1, W2, K20_39); + + F1(E, A, B, C, D, GET_P_32(P0, 0)); + F1(D, E, A, B, C, GET_P_32(P0, 1)); + F1(C, D, E, A, B, GET_P_32(P0, 2)); + F1(B, C, D, E, A, GET_P_32(P0, 3)); + prep(P0, W0, W1, W2, W3, K20_39); + + F2(A, B, C, D, E, GET_P_32(P1, 0)); + F2(E, A, B, C, D, GET_P_32(P1, 1)); + F2(D, E, A, B, C, GET_P_32(P1, 2)); + F2(C, D, E, A, B, GET_P_32(P1, 3)); + prep(P1, W1, W2, W3, W0, K20_39); + + F2(B, C, D, E, A, GET_P_32(P2, 0)); + F2(A, B, C, D, E, GET_P_32(P2, 1)); + F2(E, A, B, C, D, GET_P_32(P2, 2)); + F2(D, E, A, B, C, GET_P_32(P2, 3)); + prep(P2, W2, W3, W0, W1, K40_59); + + F2(C, D, E, A, B, GET_P_32(P3, 0)); + F2(B, C, D, E, A, GET_P_32(P3, 1)); + F2(A, B, C, D, E, GET_P_32(P3, 2)); + F2(E, A, B, C, D, GET_P_32(P3, 3)); + prep(P3, W3, W0, W1, W2, K40_59); + + F2(D, E, A, B, C, GET_P_32(P0, 0)); + F2(C, D, E, A, B, GET_P_32(P0, 1)); + F2(B, C, D, E, A, GET_P_32(P0, 2)); + F2(A, B, C, D, E, GET_P_32(P0, 3)); + prep(P0, W0, W1, W2, W3, K40_59); + + F2(E, A, B, C, D, GET_P_32(P1, 0)); + F2(D, E, A, B, C, GET_P_32(P1, 1)); + F2(C, D, E, A, B, GET_P_32(P1, 2)); + F2(B, C, D, E, A, GET_P_32(P1, 3)); + prep(P1, W1, W2, W3, W0, K40_59); + + F3(A, B, C, D, E, GET_P_32(P2, 0)); + F3(E, A, B, C, D, GET_P_32(P2, 1)); + F3(D, E, A, B, C, GET_P_32(P2, 2)); + F3(C, D, E, A, B, GET_P_32(P2, 3)); + prep(P2, W2, W3, W0, W1, K40_59); + + F3(B, C, D, E, A, GET_P_32(P3, 0)); + F3(A, B, C, D, E, GET_P_32(P3, 1)); + F3(E, A, B, C, D, GET_P_32(P3, 2)); + F3(D, E, A, B, C, GET_P_32(P3, 3)); + prep(P3, W3, W0, W1, W2, K60_79); + + F3(C, D, E, A, B, GET_P_32(P0, 0)); + F3(B, C, D, E, A, GET_P_32(P0, 1)); + F3(A, B, C, D, E, GET_P_32(P0, 2)); + F3(E, A, B, C, D, GET_P_32(P0, 3)); + prep(P0, W0, W1, W2, W3, K60_79); + + F3(D, E, A, B, C, GET_P_32(P1, 0)); + F3(C, D, E, A, B, GET_P_32(P1, 1)); + F3(B, C, D, E, A, GET_P_32(P1, 2)); + F3(A, B, C, D, E, GET_P_32(P1, 3)); + prep(P1, W1, W2, W3, W0, K60_79); + + F3(E, A, B, C, D, GET_P_32(P2, 0)); + F3(D, E, A, B, C, GET_P_32(P2, 1)); + F3(C, D, E, A, B, GET_P_32(P2, 2)); + F3(B, C, D, E, A, GET_P_32(P2, 3)); + prep(P2, W2, W3, W0, W1, K60_79); + + F4(A, B, C, D, E, GET_P_32(P3, 0)); + F4(E, A, B, C, D, GET_P_32(P3, 1)); + F4(D, E, A, B, C, GET_P_32(P3, 2)); + F4(C, D, E, A, B, GET_P_32(P3, 3)); + prep(P3, W3, W0, W1, W2, K60_79); + + F4(B, C, D, E, A, GET_P_32(P0, 0)); + F4(A, B, C, D, E, GET_P_32(P0, 1)); + F4(E, A, B, C, D, GET_P_32(P0, 2)); + F4(D, E, A, B, C, GET_P_32(P0, 3)); + + F4(C, D, E, A, B, GET_P_32(P1, 0)); + F4(B, C, D, E, A, GET_P_32(P1, 1)); + F4(A, B, C, D, E, GET_P_32(P1, 2)); + F4(E, A, B, C, D, GET_P_32(P1, 3)); + + F4(D, E, A, B, C, GET_P_32(P2, 0)); + F4(C, D, E, A, B, GET_P_32(P2, 1)); + F4(B, C, D, E, A, GET_P_32(P2, 2)); + F4(A, B, C, D, E, GET_P_32(P2, 3)); + + F4(E, A, B, C, D, GET_P_32(P3, 0)); + F4(D, E, A, B, C, GET_P_32(P3, 1)); + F4(C, D, E, A, B, GET_P_32(P3, 2)); + F4(B, C, D, E, A, GET_P_32(P3, 3)); + + A = (digest[0] += A); + B = (digest[1] += B); + C = (digest[2] += C); + D = (digest[3] += D); + E = (digest[4] += E); + + input_mm += (64 / 16); + } + +#undef GET_P_32 + } + +#undef prep00_15 +#undef prep + +} |