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https://github.com/BLAKE2/BLAKE2
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89 lines
2.8 KiB
C
89 lines
2.8 KiB
C
/*
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BLAKE2 reference source code package - optimized C implementations
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Copyright 2012, Samuel Neves <sneves@dei.uc.pt>. You may use this under the
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terms of the CC0, the OpenSSL Licence, or the Apache Public License 2.0, at
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your option. The terms of these licenses can be found at:
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- CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
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- OpenSSL license : https://www.openssl.org/source/license.html
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- Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
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More information about the BLAKE2 hash function can be found at
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https://blake2.net.
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*/
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#ifndef BLAKE2S_ROUND_H
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#define BLAKE2S_ROUND_H
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#define LOADU(p) _mm_loadu_si128( (const __m128i *)(p) )
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#define STOREU(p,r) _mm_storeu_si128((__m128i *)(p), r)
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#define TOF(reg) _mm_castsi128_ps((reg))
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#define TOI(reg) _mm_castps_si128((reg))
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#define LIKELY(x) __builtin_expect((x),1)
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/* Microarchitecture-specific macros */
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#ifndef HAVE_XOP
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#ifdef HAVE_SSSE3
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#define _mm_roti_epi32(r, c) ( \
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(8==-(c)) ? _mm_shuffle_epi8(r,r8) \
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: (16==-(c)) ? _mm_shuffle_epi8(r,r16) \
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: _mm_xor_si128(_mm_srli_epi32( (r), -(c) ),_mm_slli_epi32( (r), 32-(-(c)) )) )
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#else
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#define _mm_roti_epi32(r, c) _mm_xor_si128(_mm_srli_epi32( (r), -(c) ),_mm_slli_epi32( (r), 32-(-(c)) ))
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#endif
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#else
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/* ... */
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#endif
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#define G1(row1,row2,row3,row4,buf) \
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row1 = _mm_add_epi32( _mm_add_epi32( row1, buf), row2 ); \
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row4 = _mm_xor_si128( row4, row1 ); \
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row4 = _mm_roti_epi32(row4, -16); \
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row3 = _mm_add_epi32( row3, row4 ); \
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row2 = _mm_xor_si128( row2, row3 ); \
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row2 = _mm_roti_epi32(row2, -12);
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#define G2(row1,row2,row3,row4,buf) \
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row1 = _mm_add_epi32( _mm_add_epi32( row1, buf), row2 ); \
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row4 = _mm_xor_si128( row4, row1 ); \
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row4 = _mm_roti_epi32(row4, -8); \
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row3 = _mm_add_epi32( row3, row4 ); \
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row2 = _mm_xor_si128( row2, row3 ); \
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row2 = _mm_roti_epi32(row2, -7);
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#define DIAGONALIZE(row1,row2,row3,row4) \
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row4 = _mm_shuffle_epi32( row4, _MM_SHUFFLE(2,1,0,3) ); \
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row3 = _mm_shuffle_epi32( row3, _MM_SHUFFLE(1,0,3,2) ); \
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row2 = _mm_shuffle_epi32( row2, _MM_SHUFFLE(0,3,2,1) );
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#define UNDIAGONALIZE(row1,row2,row3,row4) \
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row4 = _mm_shuffle_epi32( row4, _MM_SHUFFLE(0,3,2,1) ); \
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row3 = _mm_shuffle_epi32( row3, _MM_SHUFFLE(1,0,3,2) ); \
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row2 = _mm_shuffle_epi32( row2, _MM_SHUFFLE(2,1,0,3) );
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#if defined(HAVE_XOP)
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#include "blake2s-load-xop.h"
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#elif defined(HAVE_SSE41)
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#include "blake2s-load-sse41.h"
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#else
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#include "blake2s-load-sse2.h"
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#endif
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#define ROUND(r) \
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LOAD_MSG_ ##r ##_1(buf1); \
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G1(row1,row2,row3,row4,buf1); \
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LOAD_MSG_ ##r ##_2(buf2); \
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G2(row1,row2,row3,row4,buf2); \
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DIAGONALIZE(row1,row2,row3,row4); \
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LOAD_MSG_ ##r ##_3(buf3); \
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G1(row1,row2,row3,row4,buf3); \
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LOAD_MSG_ ##r ##_4(buf4); \
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G2(row1,row2,row3,row4,buf4); \
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UNDIAGONALIZE(row1,row2,row3,row4); \
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#endif
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