123 lines
3.9 KiB
C
123 lines
3.9 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 BLAKE2B_ROUND_H
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#define BLAKE2B_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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#define _mm_roti_epi64(x, c) \
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(-(c) == 32) ? _mm_shuffle_epi32((x), _MM_SHUFFLE(2,3,0,1)) \
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: (-(c) == 24) ? _mm_shuffle_epi8((x), r24) \
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: (-(c) == 16) ? _mm_shuffle_epi8((x), r16) \
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: (-(c) == 63) ? _mm_xor_si128(_mm_srli_epi64((x), -(c)), _mm_add_epi64((x), (x))) \
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: _mm_xor_si128(_mm_srli_epi64((x), -(c)), _mm_slli_epi64((x), 64-(-(c))))
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#define G1(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h,b0,b1) \
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row1l = _mm_add_epi64(_mm_add_epi64(row1l, b0), row2l); \
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row1h = _mm_add_epi64(_mm_add_epi64(row1h, b1), row2h); \
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\
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row4l = _mm_xor_si128(row4l, row1l); \
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row4h = _mm_xor_si128(row4h, row1h); \
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\
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row4l = _mm_roti_epi64(row4l, -32); \
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row4h = _mm_roti_epi64(row4h, -32); \
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\
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row3l = _mm_add_epi64(row3l, row4l); \
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row3h = _mm_add_epi64(row3h, row4h); \
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\
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row2l = _mm_xor_si128(row2l, row3l); \
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row2h = _mm_xor_si128(row2h, row3h); \
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\
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row2l = _mm_roti_epi64(row2l, -24); \
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row2h = _mm_roti_epi64(row2h, -24); \
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#define G2(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h,b0,b1) \
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row1l = _mm_add_epi64(_mm_add_epi64(row1l, b0), row2l); \
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row1h = _mm_add_epi64(_mm_add_epi64(row1h, b1), row2h); \
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\
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row4l = _mm_xor_si128(row4l, row1l); \
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row4h = _mm_xor_si128(row4h, row1h); \
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\
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row4l = _mm_roti_epi64(row4l, -16); \
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row4h = _mm_roti_epi64(row4h, -16); \
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\
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row3l = _mm_add_epi64(row3l, row4l); \
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row3h = _mm_add_epi64(row3h, row4h); \
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\
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row2l = _mm_xor_si128(row2l, row3l); \
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row2h = _mm_xor_si128(row2h, row3h); \
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\
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row2l = _mm_roti_epi64(row2l, -63); \
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row2h = _mm_roti_epi64(row2h, -63); \
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#define DIAGONALIZE(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h) \
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t0 = _mm_alignr_epi8(row2h, row2l, 8); \
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t1 = _mm_alignr_epi8(row2l, row2h, 8); \
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row2l = t0; \
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row2h = t1; \
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\
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t0 = row3l; \
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row3l = row3h; \
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row3h = t0; \
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\
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t0 = _mm_alignr_epi8(row4h, row4l, 8); \
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t1 = _mm_alignr_epi8(row4l, row4h, 8); \
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row4l = t1; \
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row4h = t0;
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#define UNDIAGONALIZE(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h) \
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t0 = _mm_alignr_epi8(row2l, row2h, 8); \
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t1 = _mm_alignr_epi8(row2h, row2l, 8); \
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row2l = t0; \
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row2h = t1; \
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\
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t0 = row3l; \
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row3l = row3h; \
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row3h = t0; \
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\
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t0 = _mm_alignr_epi8(row4l, row4h, 8); \
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t1 = _mm_alignr_epi8(row4h, row4l, 8); \
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row4l = t1; \
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row4h = t0;
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#define LOAD_MSG(r, i, b0, b1) \
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do { \
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b0 = _mm_set_epi64x(m[blake2b_sigma_sse41[r][i * 4 + 1]], m[blake2b_sigma_sse41[r][i * 4 + 0]]); \
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b1 = _mm_set_epi64x(m[blake2b_sigma_sse41[r][i * 4 + 3]], m[blake2b_sigma_sse41[r][i * 4 + 2]]); \
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} while(0)
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#define ROUND(r) \
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LOAD_MSG(r, 0, b0, b1); \
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G1(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h,b0,b1); \
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LOAD_MSG(r, 1, b0, b1); \
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G2(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h,b0,b1); \
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DIAGONALIZE(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h); \
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LOAD_MSG(r, 2, b0, b1); \
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G1(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h,b0,b1); \
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LOAD_MSG(r, 3, b0, b1); \
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G2(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h,b0,b1); \
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UNDIAGONALIZE(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h);
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#endif
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