1 /* 2 BLAKE2 reference source code package - optimized C implementations 3 4 Written in 2012 by Samuel Neves <sneves@dei.uc.pt> 5 6 To the extent possible under law, the author(s) have dedicated all copyright 7 and related and neighboring rights to this software to the public domain 8 worldwide. This software is distributed without any warranty. 9 10 You should have received a copy of the CC0 Public Domain Dedication along with 11 this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>. 12 */ 13 #pragma once 14 #ifndef __BLAKE2S_ROUND_H__ 15 #define __BLAKE2S_ROUND_H__ 16 17 #define LOAD(p) _mm_load_si128( (__m128i *)(p) ) 18 #define STORE(p,r) _mm_store_si128((__m128i *)(p), r) 19 20 #define LOADU(p) _mm_loadu_si128( (__m128i *)(p) ) 21 #define STOREU(p,r) _mm_storeu_si128((__m128i *)(p), r) 22 23 #define TOF(reg) _mm_castsi128_ps((reg)) 24 #define TOI(reg) _mm_castps_si128((reg)) 25 26 #define LIKELY(x) __builtin_expect((x),1) 27 28 29 /* Microarchitecture-specific macros */ 30 #ifndef HAVE_XOP 31 #ifdef HAVE_SSSE3 32 #define _mm_roti_epi32(r, c) ( \ 33 (8==-(c)) ? _mm_shuffle_epi8(r,r8) \ 34 : (16==-(c)) ? _mm_shuffle_epi8(r,r16) \ 35 : _mm_xor_si128(_mm_srli_epi32( (r), -(c) ),_mm_slli_epi32( (r), 32-(-(c)) )) ) 36 #else 37 #define _mm_roti_epi32(r, c) _mm_xor_si128(_mm_srli_epi32( (r), -(c) ),_mm_slli_epi32( (r), 32-(-(c)) )) 38 #endif 39 #else 40 /* ... */ 41 #endif 42 43 44 #define G1(row1,row2,row3,row4,buf) \ 45 row1 = _mm_add_epi32( _mm_add_epi32( row1, buf), row2 ); \ 46 row4 = _mm_xor_si128( row4, row1 ); \ 47 row4 = _mm_roti_epi32(row4, -16); \ 48 row3 = _mm_add_epi32( row3, row4 ); \ 49 row2 = _mm_xor_si128( row2, row3 ); \ 50 row2 = _mm_roti_epi32(row2, -12); 51 52 #define G2(row1,row2,row3,row4,buf) \ 53 row1 = _mm_add_epi32( _mm_add_epi32( row1, buf), row2 ); \ 54 row4 = _mm_xor_si128( row4, row1 ); \ 55 row4 = _mm_roti_epi32(row4, -8); \ 56 row3 = _mm_add_epi32( row3, row4 ); \ 57 row2 = _mm_xor_si128( row2, row3 ); \ 58 row2 = _mm_roti_epi32(row2, -7); 59 60 #define DIAGONALIZE(row1,row2,row3,row4) \ 61 row4 = _mm_shuffle_epi32( row4, _MM_SHUFFLE(2,1,0,3) ); \ 62 row3 = _mm_shuffle_epi32( row3, _MM_SHUFFLE(1,0,3,2) ); \ 63 row2 = _mm_shuffle_epi32( row2, _MM_SHUFFLE(0,3,2,1) ); 64 65 #define UNDIAGONALIZE(row1,row2,row3,row4) \ 66 row4 = _mm_shuffle_epi32( row4, _MM_SHUFFLE(0,3,2,1) ); \ 67 row3 = _mm_shuffle_epi32( row3, _MM_SHUFFLE(1,0,3,2) ); \ 68 row2 = _mm_shuffle_epi32( row2, _MM_SHUFFLE(2,1,0,3) ); 69 70 #if defined(HAVE_XOP) 71 #include "blake2s-load-xop.h" 72 #elif defined(HAVE_SSE4_1) 73 #include "blake2s-load-sse41.h" 74 #else 75 #include "blake2s-load-sse2.h" 76 #endif 77 78 #define ROUND(r) \ 79 LOAD_MSG_ ##r ##_1(buf1); \ 80 G1(row1,row2,row3,row4,buf1); \ 81 LOAD_MSG_ ##r ##_2(buf2); \ 82 G2(row1,row2,row3,row4,buf2); \ 83 DIAGONALIZE(row1,row2,row3,row4); \ 84 LOAD_MSG_ ##r ##_3(buf3); \ 85 G1(row1,row2,row3,row4,buf3); \ 86 LOAD_MSG_ ##r ##_4(buf4); \ 87 G2(row1,row2,row3,row4,buf4); \ 88 UNDIAGONALIZE(row1,row2,row3,row4); \ 89 90 #endif 91 92