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Unified Diff: Modules/_blake2/impl/blake2b-round.h

Issue 26798: add BLAKE2 to hashlib
Patch Set: Created 2 years, 11 months ago
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new file mode 100644
index 0000000000000000000000000000000000000000..4ce2255409644fa34d9f5a3159baf3966d95be51
--- /dev/null
+++ b/Modules/_blake2/impl/blake2b-round.h
@@ -0,0 +1,159 @@
+/*
+ BLAKE2 reference source code package - optimized C implementations
+
+ Copyright 2012, Samuel Neves <sneves@dei.uc.pt>. You may use this under the
+ terms of the CC0, the OpenSSL Licence, or the Apache Public License 2.0, at
+ your option. The terms of these licenses can be found at:
+
+ - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
+ - OpenSSL license : https://www.openssl.org/source/license.html
+ - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
+
+ More information about the BLAKE2 hash function can be found at
+ https://blake2.net.
+*/
+#pragma once
+#ifndef __BLAKE2B_ROUND_H__
+#define __BLAKE2B_ROUND_H__
+
+#define LOADU(p) _mm_loadu_si128( (const __m128i *)(p) )
+#define STOREU(p,r) _mm_storeu_si128((__m128i *)(p), r)
+
+#define TOF(reg) _mm_castsi128_ps((reg))
+#define TOI(reg) _mm_castps_si128((reg))
+
+#define LIKELY(x) __builtin_expect((x),1)
+
+
+/* Microarchitecture-specific macros */
+#ifndef HAVE_XOP
+#ifdef HAVE_SSSE3
+#define _mm_roti_epi64(x, c) \
+ (-(c) == 32) ? _mm_shuffle_epi32((x), _MM_SHUFFLE(2,3,0,1)) \
+ : (-(c) == 24) ? _mm_shuffle_epi8((x), r24) \
+ : (-(c) == 16) ? _mm_shuffle_epi8((x), r16) \
+ : (-(c) == 63) ? _mm_xor_si128(_mm_srli_epi64((x), -(c)), _mm_add_epi64((x), (x))) \
+ : _mm_xor_si128(_mm_srli_epi64((x), -(c)), _mm_slli_epi64((x), 64-(-(c))))
+#else
+#define _mm_roti_epi64(r, c) _mm_xor_si128(_mm_srli_epi64( (r), -(c) ),_mm_slli_epi64( (r), 64-(-(c)) ))
+#endif
+#else
+/* ... */
+#endif
+
+
+
+#define G1(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h,b0,b1) \
+ row1l = _mm_add_epi64(_mm_add_epi64(row1l, b0), row2l); \
+ row1h = _mm_add_epi64(_mm_add_epi64(row1h, b1), row2h); \
+ \
+ row4l = _mm_xor_si128(row4l, row1l); \
+ row4h = _mm_xor_si128(row4h, row1h); \
+ \
+ row4l = _mm_roti_epi64(row4l, -32); \
+ row4h = _mm_roti_epi64(row4h, -32); \
+ \
+ row3l = _mm_add_epi64(row3l, row4l); \
+ row3h = _mm_add_epi64(row3h, row4h); \
+ \
+ row2l = _mm_xor_si128(row2l, row3l); \
+ row2h = _mm_xor_si128(row2h, row3h); \
+ \
+ row2l = _mm_roti_epi64(row2l, -24); \
+ row2h = _mm_roti_epi64(row2h, -24); \
+
+#define G2(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h,b0,b1) \
+ row1l = _mm_add_epi64(_mm_add_epi64(row1l, b0), row2l); \
+ row1h = _mm_add_epi64(_mm_add_epi64(row1h, b1), row2h); \
+ \
+ row4l = _mm_xor_si128(row4l, row1l); \
+ row4h = _mm_xor_si128(row4h, row1h); \
+ \
+ row4l = _mm_roti_epi64(row4l, -16); \
+ row4h = _mm_roti_epi64(row4h, -16); \
+ \
+ row3l = _mm_add_epi64(row3l, row4l); \
+ row3h = _mm_add_epi64(row3h, row4h); \
+ \
+ row2l = _mm_xor_si128(row2l, row3l); \
+ row2h = _mm_xor_si128(row2h, row3h); \
+ \
+ row2l = _mm_roti_epi64(row2l, -63); \
+ row2h = _mm_roti_epi64(row2h, -63); \
+
+#if defined(HAVE_SSSE3)
+#define DIAGONALIZE(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h) \
+ t0 = _mm_alignr_epi8(row2h, row2l, 8); \
+ t1 = _mm_alignr_epi8(row2l, row2h, 8); \
+ row2l = t0; \
+ row2h = t1; \
+ \
+ t0 = row3l; \
+ row3l = row3h; \
+ row3h = t0; \
+ \
+ t0 = _mm_alignr_epi8(row4h, row4l, 8); \
+ t1 = _mm_alignr_epi8(row4l, row4h, 8); \
+ row4l = t1; \
+ row4h = t0;
+
+#define UNDIAGONALIZE(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h) \
+ t0 = _mm_alignr_epi8(row2l, row2h, 8); \
+ t1 = _mm_alignr_epi8(row2h, row2l, 8); \
+ row2l = t0; \
+ row2h = t1; \
+ \
+ t0 = row3l; \
+ row3l = row3h; \
+ row3h = t0; \
+ \
+ t0 = _mm_alignr_epi8(row4l, row4h, 8); \
+ t1 = _mm_alignr_epi8(row4h, row4l, 8); \
+ row4l = t1; \
+ row4h = t0;
+#else
+
+#define DIAGONALIZE(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h) \
+ t0 = row4l;\
+ t1 = row2l;\
+ row4l = row3l;\
+ row3l = row3h;\
+ row3h = row4l;\
+ row4l = _mm_unpackhi_epi64(row4h, _mm_unpacklo_epi64(t0, t0)); \
+ row4h = _mm_unpackhi_epi64(t0, _mm_unpacklo_epi64(row4h, row4h)); \
+ row2l = _mm_unpackhi_epi64(row2l, _mm_unpacklo_epi64(row2h, row2h)); \
+ row2h = _mm_unpackhi_epi64(row2h, _mm_unpacklo_epi64(t1, t1))
+
+#define UNDIAGONALIZE(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h) \
+ t0 = row3l;\
+ row3l = row3h;\
+ row3h = t0;\
+ t0 = row2l;\
+ t1 = row4l;\
+ row2l = _mm_unpackhi_epi64(row2h, _mm_unpacklo_epi64(row2l, row2l)); \
+ row2h = _mm_unpackhi_epi64(t0, _mm_unpacklo_epi64(row2h, row2h)); \
+ row4l = _mm_unpackhi_epi64(row4l, _mm_unpacklo_epi64(row4h, row4h)); \
+ row4h = _mm_unpackhi_epi64(row4h, _mm_unpacklo_epi64(t1, t1))
+
+#endif
+
+#if defined(HAVE_SSE41)
+#include "blake2b-load-sse41.h"
+#else
+#include "blake2b-load-sse2.h"
+#endif
+
+#define ROUND(r) \
+ LOAD_MSG_ ##r ##_1(b0, b1); \
+ G1(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h,b0,b1); \
+ LOAD_MSG_ ##r ##_2(b0, b1); \
+ G2(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h,b0,b1); \
+ DIAGONALIZE(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h); \
+ LOAD_MSG_ ##r ##_3(b0, b1); \
+ G1(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h,b0,b1); \
+ LOAD_MSG_ ##r ##_4(b0, b1); \
+ G2(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h,b0,b1); \
+ UNDIAGONALIZE(row1l,row2l,row3l,row4l,row1h,row2h,row3h,row4h);
+
+#endif
+
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