Bitcoin ABC 0.26.3
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sha256_shani.cpp
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1// Copyright (c) 2018 The Bitcoin Core developers
2// Distributed under the MIT software license, see the accompanying
3// file COPYING or http://www.opensource.org/licenses/mit-license.php.
4//
5// Based on https://github.com/noloader/SHA-Intrinsics/blob/master/sha256-x86.c,
6// Written and placed in public domain by Jeffrey Walton.
7// Based on code from Intel, and by Sean Gulley for the miTLS project.
8
9#ifdef ENABLE_SHANI
10
11#include <cstdint>
12#include <immintrin.h>
13
14namespace {
15
16alignas(__m128i) const uint8_t MASK[16] = {0x03, 0x02, 0x01, 0x00, 0x07, 0x06,
17 0x05, 0x04, 0x0b, 0x0a, 0x09, 0x08,
18 0x0f, 0x0e, 0x0d, 0x0c};
19alignas(__m128i) const uint8_t INIT0[16] = {0x8c, 0x68, 0x05, 0x9b, 0x7f, 0x52,
20 0x0e, 0x51, 0x85, 0xae, 0x67, 0xbb,
21 0x67, 0xe6, 0x09, 0x6a};
22alignas(__m128i) const uint8_t INIT1[16] = {0x19, 0xcd, 0xe0, 0x5b, 0xab, 0xd9,
23 0x83, 0x1f, 0x3a, 0xf5, 0x4f, 0xa5,
24 0x72, 0xf3, 0x6e, 0x3c};
25
26inline void __attribute__((always_inline))
27QuadRound(__m128i &state0, __m128i &state1, uint64_t k1, uint64_t k0) {
28 const __m128i msg = _mm_set_epi64x(k1, k0);
29 state1 = _mm_sha256rnds2_epu32(state1, state0, msg);
30 state0 =
31 _mm_sha256rnds2_epu32(state0, state1, _mm_shuffle_epi32(msg, 0x0e));
32}
33
34inline void __attribute__((always_inline))
35QuadRound(__m128i &state0, __m128i &state1, __m128i m, uint64_t k1,
36 uint64_t k0) {
37 const __m128i msg = _mm_add_epi32(m, _mm_set_epi64x(k1, k0));
38 state1 = _mm_sha256rnds2_epu32(state1, state0, msg);
39 state0 =
40 _mm_sha256rnds2_epu32(state0, state1, _mm_shuffle_epi32(msg, 0x0e));
41}
42
43inline void __attribute__((always_inline))
44ShiftMessageA(__m128i &m0, __m128i m1) {
45 m0 = _mm_sha256msg1_epu32(m0, m1);
46}
47
48inline void __attribute__((always_inline))
49ShiftMessageC(__m128i &m0, __m128i m1, __m128i &m2) {
50 m2 =
51 _mm_sha256msg2_epu32(_mm_add_epi32(m2, _mm_alignr_epi8(m1, m0, 4)), m1);
52}
53
54inline void __attribute__((always_inline))
55ShiftMessageB(__m128i &m0, __m128i m1, __m128i &m2) {
56 ShiftMessageC(m0, m1, m2);
57 ShiftMessageA(m0, m1);
58}
59
60inline void __attribute__((always_inline)) Shuffle(__m128i &s0, __m128i &s1) {
61 const __m128i t1 = _mm_shuffle_epi32(s0, 0xB1);
62 const __m128i t2 = _mm_shuffle_epi32(s1, 0x1B);
63 s0 = _mm_alignr_epi8(t1, t2, 0x08);
64 s1 = _mm_blend_epi16(t2, t1, 0xF0);
65}
66
67inline void __attribute__((always_inline)) Unshuffle(__m128i &s0, __m128i &s1) {
68 const __m128i t1 = _mm_shuffle_epi32(s0, 0x1B);
69 const __m128i t2 = _mm_shuffle_epi32(s1, 0xB1);
70 s0 = _mm_blend_epi16(t1, t2, 0xF0);
71 s1 = _mm_alignr_epi8(t2, t1, 0x08);
72}
73
74/*
75 * Prevent the compiler from raising a -Wcast-align warning when using unaligned
76 * specific instruction, such as _mm_loadu_si128 or _mm_storeu_si128 (note the
77 * 'u' suffix for unaligned accesses).
78 */
79#pragma GCC diagnostic push
80#pragma GCC diagnostic ignored "-Wcast-align"
81inline __m128i __attribute__((always_inline))
82LoadInteger128Unaligned(const uint8_t *mem_addr) {
83 return _mm_loadu_si128((const __m128i *)mem_addr);
84}
85inline __m128i __attribute__((always_inline))
86LoadInteger128Unaligned(const uint32_t *mem_addr) {
87 return _mm_loadu_si128((const __m128i *)mem_addr);
88}
89
90inline void __attribute__((always_inline))
91StoreInteger128Unaligned(uint8_t *mem_addr, __m128i i128) {
92 _mm_storeu_si128((__m128i *)mem_addr, i128);
93}
94inline void __attribute__((always_inline))
95StoreInteger128Unaligned(uint32_t *mem_addr, __m128i i128) {
96 _mm_storeu_si128((__m128i *)mem_addr, i128);
97}
98#pragma GCC diagnostic pop
99
100__m128i inline __attribute__((always_inline)) Load(const uint8_t *in) {
101 return _mm_shuffle_epi8(LoadInteger128Unaligned(in),
102 _mm_load_si128((const __m128i *)MASK));
103}
104
105inline void __attribute__((always_inline)) Save(uint8_t *out, __m128i s) {
106 StoreInteger128Unaligned(
107 out, _mm_shuffle_epi8(s, _mm_load_si128((const __m128i *)MASK)));
108}
109} // namespace
110
111namespace sha256_shani {
112void Transform(uint32_t *s, const uint8_t *chunk, size_t blocks) {
113 __m128i m0, m1, m2, m3, s0, s1, so0, so1;
114
115 /* Load state */
116 s0 = LoadInteger128Unaligned(s);
117 s1 = LoadInteger128Unaligned(s + 4);
118 Shuffle(s0, s1);
119
120 while (blocks--) {
121 /* Remember old state */
122 so0 = s0;
123 so1 = s1;
124
125 /* Load data and transform */
126 m0 = Load(chunk);
127 QuadRound(s0, s1, m0, 0xe9b5dba5b5c0fbcfull, 0x71374491428a2f98ull);
128 m1 = Load(chunk + 16);
129 QuadRound(s0, s1, m1, 0xab1c5ed5923f82a4ull, 0x59f111f13956c25bull);
130 ShiftMessageA(m0, m1);
131 m2 = Load(chunk + 32);
132 QuadRound(s0, s1, m2, 0x550c7dc3243185beull, 0x12835b01d807aa98ull);
133 ShiftMessageA(m1, m2);
134 m3 = Load(chunk + 48);
135 QuadRound(s0, s1, m3, 0xc19bf1749bdc06a7ull, 0x80deb1fe72be5d74ull);
136 ShiftMessageB(m2, m3, m0);
137 QuadRound(s0, s1, m0, 0x240ca1cc0fc19dc6ull, 0xefbe4786E49b69c1ull);
138 ShiftMessageB(m3, m0, m1);
139 QuadRound(s0, s1, m1, 0x76f988da5cb0a9dcull, 0x4a7484aa2de92c6full);
140 ShiftMessageB(m0, m1, m2);
141 QuadRound(s0, s1, m2, 0xbf597fc7b00327c8ull, 0xa831c66d983e5152ull);
142 ShiftMessageB(m1, m2, m3);
143 QuadRound(s0, s1, m3, 0x1429296706ca6351ull, 0xd5a79147c6e00bf3ull);
144 ShiftMessageB(m2, m3, m0);
145 QuadRound(s0, s1, m0, 0x53380d134d2c6dfcull, 0x2e1b213827b70a85ull);
146 ShiftMessageB(m3, m0, m1);
147 QuadRound(s0, s1, m1, 0x92722c8581c2c92eull, 0x766a0abb650a7354ull);
148 ShiftMessageB(m0, m1, m2);
149 QuadRound(s0, s1, m2, 0xc76c51A3c24b8b70ull, 0xa81a664ba2bfe8a1ull);
150 ShiftMessageB(m1, m2, m3);
151 QuadRound(s0, s1, m3, 0x106aa070f40e3585ull, 0xd6990624d192e819ull);
152 ShiftMessageB(m2, m3, m0);
153 QuadRound(s0, s1, m0, 0x34b0bcb52748774cull, 0x1e376c0819a4c116ull);
154 ShiftMessageB(m3, m0, m1);
155 QuadRound(s0, s1, m1, 0x682e6ff35b9cca4full, 0x4ed8aa4a391c0cb3ull);
156 ShiftMessageC(m0, m1, m2);
157 QuadRound(s0, s1, m2, 0x8cc7020884c87814ull, 0x78a5636f748f82eeull);
158 ShiftMessageC(m1, m2, m3);
159 QuadRound(s0, s1, m3, 0xc67178f2bef9A3f7ull, 0xa4506ceb90befffaull);
160
161 /* Combine with old state */
162 s0 = _mm_add_epi32(s0, so0);
163 s1 = _mm_add_epi32(s1, so1);
164
165 /* Advance */
166 chunk += 64;
167 }
168
169 Unshuffle(s0, s1);
170 StoreInteger128Unaligned(s, s0);
171 StoreInteger128Unaligned(s + 4, s1);
172}
173} // namespace sha256_shani
174
175namespace sha256d64_shani {
176
177void Transform_2way(uint8_t *out, const uint8_t *in) {
178 __m128i am0, am1, am2, am3, as0, as1, aso0, aso1;
179 __m128i bm0, bm1, bm2, bm3, bs0, bs1, bso0, bso1;
180
181 /* Transform 1 */
182 bs0 = as0 = _mm_load_si128((const __m128i *)INIT0);
183 bs1 = as1 = _mm_load_si128((const __m128i *)INIT1);
184 am0 = Load(in);
185 bm0 = Load(in + 64);
186 QuadRound(as0, as1, am0, 0xe9b5dba5b5c0fbcfull, 0x71374491428a2f98ull);
187 QuadRound(bs0, bs1, bm0, 0xe9b5dba5b5c0fbcfull, 0x71374491428a2f98ull);
188 am1 = Load(in + 16);
189 bm1 = Load(in + 80);
190 QuadRound(as0, as1, am1, 0xab1c5ed5923f82a4ull, 0x59f111f13956c25bull);
191 QuadRound(bs0, bs1, bm1, 0xab1c5ed5923f82a4ull, 0x59f111f13956c25bull);
192 ShiftMessageA(am0, am1);
193 ShiftMessageA(bm0, bm1);
194 am2 = Load(in + 32);
195 bm2 = Load(in + 96);
196 QuadRound(as0, as1, am2, 0x550c7dc3243185beull, 0x12835b01d807aa98ull);
197 QuadRound(bs0, bs1, bm2, 0x550c7dc3243185beull, 0x12835b01d807aa98ull);
198 ShiftMessageA(am1, am2);
199 ShiftMessageA(bm1, bm2);
200 am3 = Load(in + 48);
201 bm3 = Load(in + 112);
202 QuadRound(as0, as1, am3, 0xc19bf1749bdc06a7ull, 0x80deb1fe72be5d74ull);
203 QuadRound(bs0, bs1, bm3, 0xc19bf1749bdc06a7ull, 0x80deb1fe72be5d74ull);
204 ShiftMessageB(am2, am3, am0);
205 ShiftMessageB(bm2, bm3, bm0);
206 QuadRound(as0, as1, am0, 0x240ca1cc0fc19dc6ull, 0xefbe4786E49b69c1ull);
207 QuadRound(bs0, bs1, bm0, 0x240ca1cc0fc19dc6ull, 0xefbe4786E49b69c1ull);
208 ShiftMessageB(am3, am0, am1);
209 ShiftMessageB(bm3, bm0, bm1);
210 QuadRound(as0, as1, am1, 0x76f988da5cb0a9dcull, 0x4a7484aa2de92c6full);
211 QuadRound(bs0, bs1, bm1, 0x76f988da5cb0a9dcull, 0x4a7484aa2de92c6full);
212 ShiftMessageB(am0, am1, am2);
213 ShiftMessageB(bm0, bm1, bm2);
214 QuadRound(as0, as1, am2, 0xbf597fc7b00327c8ull, 0xa831c66d983e5152ull);
215 QuadRound(bs0, bs1, bm2, 0xbf597fc7b00327c8ull, 0xa831c66d983e5152ull);
216 ShiftMessageB(am1, am2, am3);
217 ShiftMessageB(bm1, bm2, bm3);
218 QuadRound(as0, as1, am3, 0x1429296706ca6351ull, 0xd5a79147c6e00bf3ull);
219 QuadRound(bs0, bs1, bm3, 0x1429296706ca6351ull, 0xd5a79147c6e00bf3ull);
220 ShiftMessageB(am2, am3, am0);
221 ShiftMessageB(bm2, bm3, bm0);
222 QuadRound(as0, as1, am0, 0x53380d134d2c6dfcull, 0x2e1b213827b70a85ull);
223 QuadRound(bs0, bs1, bm0, 0x53380d134d2c6dfcull, 0x2e1b213827b70a85ull);
224 ShiftMessageB(am3, am0, am1);
225 ShiftMessageB(bm3, bm0, bm1);
226 QuadRound(as0, as1, am1, 0x92722c8581c2c92eull, 0x766a0abb650a7354ull);
227 QuadRound(bs0, bs1, bm1, 0x92722c8581c2c92eull, 0x766a0abb650a7354ull);
228 ShiftMessageB(am0, am1, am2);
229 ShiftMessageB(bm0, bm1, bm2);
230 QuadRound(as0, as1, am2, 0xc76c51A3c24b8b70ull, 0xa81a664ba2bfe8a1ull);
231 QuadRound(bs0, bs1, bm2, 0xc76c51A3c24b8b70ull, 0xa81a664ba2bfe8a1ull);
232 ShiftMessageB(am1, am2, am3);
233 ShiftMessageB(bm1, bm2, bm3);
234 QuadRound(as0, as1, am3, 0x106aa070f40e3585ull, 0xd6990624d192e819ull);
235 QuadRound(bs0, bs1, bm3, 0x106aa070f40e3585ull, 0xd6990624d192e819ull);
236 ShiftMessageB(am2, am3, am0);
237 ShiftMessageB(bm2, bm3, bm0);
238 QuadRound(as0, as1, am0, 0x34b0bcb52748774cull, 0x1e376c0819a4c116ull);
239 QuadRound(bs0, bs1, bm0, 0x34b0bcb52748774cull, 0x1e376c0819a4c116ull);
240 ShiftMessageB(am3, am0, am1);
241 ShiftMessageB(bm3, bm0, bm1);
242 QuadRound(as0, as1, am1, 0x682e6ff35b9cca4full, 0x4ed8aa4a391c0cb3ull);
243 QuadRound(bs0, bs1, bm1, 0x682e6ff35b9cca4full, 0x4ed8aa4a391c0cb3ull);
244 ShiftMessageC(am0, am1, am2);
245 ShiftMessageC(bm0, bm1, bm2);
246 QuadRound(as0, as1, am2, 0x8cc7020884c87814ull, 0x78a5636f748f82eeull);
247 QuadRound(bs0, bs1, bm2, 0x8cc7020884c87814ull, 0x78a5636f748f82eeull);
248 ShiftMessageC(am1, am2, am3);
249 ShiftMessageC(bm1, bm2, bm3);
250 QuadRound(as0, as1, am3, 0xc67178f2bef9A3f7ull, 0xa4506ceb90befffaull);
251 QuadRound(bs0, bs1, bm3, 0xc67178f2bef9A3f7ull, 0xa4506ceb90befffaull);
252 as0 = _mm_add_epi32(as0, _mm_load_si128((const __m128i *)INIT0));
253 bs0 = _mm_add_epi32(bs0, _mm_load_si128((const __m128i *)INIT0));
254 as1 = _mm_add_epi32(as1, _mm_load_si128((const __m128i *)INIT1));
255 bs1 = _mm_add_epi32(bs1, _mm_load_si128((const __m128i *)INIT1));
256
257 /* Transform 2 */
258 aso0 = as0;
259 bso0 = bs0;
260 aso1 = as1;
261 bso1 = bs1;
262 QuadRound(as0, as1, 0xe9b5dba5b5c0fbcfull, 0x71374491c28a2f98ull);
263 QuadRound(bs0, bs1, 0xe9b5dba5b5c0fbcfull, 0x71374491c28a2f98ull);
264 QuadRound(as0, as1, 0xab1c5ed5923f82a4ull, 0x59f111f13956c25bull);
265 QuadRound(bs0, bs1, 0xab1c5ed5923f82a4ull, 0x59f111f13956c25bull);
266 QuadRound(as0, as1, 0x550c7dc3243185beull, 0x12835b01d807aa98ull);
267 QuadRound(bs0, bs1, 0x550c7dc3243185beull, 0x12835b01d807aa98ull);
268 QuadRound(as0, as1, 0xc19bf3749bdc06a7ull, 0x80deb1fe72be5d74ull);
269 QuadRound(bs0, bs1, 0xc19bf3749bdc06a7ull, 0x80deb1fe72be5d74ull);
270 QuadRound(as0, as1, 0x240cf2540fe1edc6ull, 0xf0fe4786649b69c1ull);
271 QuadRound(bs0, bs1, 0x240cf2540fe1edc6ull, 0xf0fe4786649b69c1ull);
272 QuadRound(as0, as1, 0x16f988fa61b9411eull, 0x6cc984be4fe9346full);
273 QuadRound(bs0, bs1, 0x16f988fa61b9411eull, 0x6cc984be4fe9346full);
274 QuadRound(as0, as1, 0xb9d99ec7b019fc65ull, 0xa88e5a6df2c65152ull);
275 QuadRound(bs0, bs1, 0xb9d99ec7b019fc65ull, 0xa88e5a6df2c65152ull);
276 QuadRound(as0, as1, 0xc7353eb0fdb1232bull, 0xe70eeaa09a1231c3ull);
277 QuadRound(bs0, bs1, 0xc7353eb0fdb1232bull, 0xe70eeaa09a1231c3ull);
278 QuadRound(as0, as1, 0xdc1eeefd5a0f118full, 0xcb976d5f3069bad5ull);
279 QuadRound(bs0, bs1, 0xdc1eeefd5a0f118full, 0xcb976d5f3069bad5ull);
280 QuadRound(as0, as1, 0xe15d5b1658f4ca9dull, 0xde0b7a040a35b689ull);
281 QuadRound(bs0, bs1, 0xe15d5b1658f4ca9dull, 0xde0b7a040a35b689ull);
282 QuadRound(as0, as1, 0x6fab9537a507ea32ull, 0x37088980007f3e86ull);
283 QuadRound(bs0, bs1, 0x6fab9537a507ea32ull, 0x37088980007f3e86ull);
284 QuadRound(as0, as1, 0xc0bbbe37cdaa3b6dull, 0x0d8cd6f117406110ull);
285 QuadRound(bs0, bs1, 0xc0bbbe37cdaa3b6dull, 0x0d8cd6f117406110ull);
286 QuadRound(as0, as1, 0x6fd15ca70b02e931ull, 0xdb48a36383613bdaull);
287 QuadRound(bs0, bs1, 0x6fd15ca70b02e931ull, 0xdb48a36383613bdaull);
288 QuadRound(as0, as1, 0x6d4378906ed41a95ull, 0x31338431521afacaull);
289 QuadRound(bs0, bs1, 0x6d4378906ed41a95ull, 0x31338431521afacaull);
290 QuadRound(as0, as1, 0x532fb63cb5c9a0e6ull, 0x9eccabbdc39c91f2ull);
291 QuadRound(bs0, bs1, 0x532fb63cb5c9a0e6ull, 0x9eccabbdc39c91f2ull);
292 QuadRound(as0, as1, 0x4c191d76a4954b68ull, 0x07237ea3d2c741c6ull);
293 QuadRound(bs0, bs1, 0x4c191d76a4954b68ull, 0x07237ea3d2c741c6ull);
294 as0 = _mm_add_epi32(as0, aso0);
295 bs0 = _mm_add_epi32(bs0, bso0);
296 as1 = _mm_add_epi32(as1, aso1);
297 bs1 = _mm_add_epi32(bs1, bso1);
298
299 /* Extract hash */
300 Unshuffle(as0, as1);
301 Unshuffle(bs0, bs1);
302 am0 = as0;
303 bm0 = bs0;
304 am1 = as1;
305 bm1 = bs1;
306
307 /* Transform 3 */
308 bs0 = as0 = _mm_load_si128((const __m128i *)INIT0);
309 bs1 = as1 = _mm_load_si128((const __m128i *)INIT1);
310 QuadRound(as0, as1, am0, 0xe9b5dba5B5c0fbcfull, 0x71374491428a2f98ull);
311 QuadRound(bs0, bs1, bm0, 0xe9b5dba5B5c0fbcfull, 0x71374491428a2f98ull);
312 QuadRound(as0, as1, am1, 0xab1c5ed5923f82a4ull, 0x59f111f13956c25bull);
313 QuadRound(bs0, bs1, bm1, 0xab1c5ed5923f82a4ull, 0x59f111f13956c25bull);
314 ShiftMessageA(am0, am1);
315 ShiftMessageA(bm0, bm1);
316 bm2 = am2 = _mm_set_epi64x(0x0ull, 0x80000000ull);
317 QuadRound(as0, as1, 0x550c7dc3243185beull, 0x12835b015807aa98ull);
318 QuadRound(bs0, bs1, 0x550c7dc3243185beull, 0x12835b015807aa98ull);
319 ShiftMessageA(am1, am2);
320 ShiftMessageA(bm1, bm2);
321 bm3 = am3 = _mm_set_epi64x(0x10000000000ull, 0x0ull);
322 QuadRound(as0, as1, 0xc19bf2749bdc06a7ull, 0x80deb1fe72be5d74ull);
323 QuadRound(bs0, bs1, 0xc19bf2749bdc06a7ull, 0x80deb1fe72be5d74ull);
324 ShiftMessageB(am2, am3, am0);
325 ShiftMessageB(bm2, bm3, bm0);
326 QuadRound(as0, as1, am0, 0x240ca1cc0fc19dc6ull, 0xefbe4786e49b69c1ull);
327 QuadRound(bs0, bs1, bm0, 0x240ca1cc0fc19dc6ull, 0xefbe4786e49b69c1ull);
328 ShiftMessageB(am3, am0, am1);
329 ShiftMessageB(bm3, bm0, bm1);
330 QuadRound(as0, as1, am1, 0x76f988da5cb0a9dcull, 0x4a7484aa2de92c6full);
331 QuadRound(bs0, bs1, bm1, 0x76f988da5cb0a9dcull, 0x4a7484aa2de92c6full);
332 ShiftMessageB(am0, am1, am2);
333 ShiftMessageB(bm0, bm1, bm2);
334 QuadRound(as0, as1, am2, 0xbf597fc7b00327c8ull, 0xa831c66d983e5152ull);
335 QuadRound(bs0, bs1, bm2, 0xbf597fc7b00327c8ull, 0xa831c66d983e5152ull);
336 ShiftMessageB(am1, am2, am3);
337 ShiftMessageB(bm1, bm2, bm3);
338 QuadRound(as0, as1, am3, 0x1429296706ca6351ull, 0xd5a79147c6e00bf3ull);
339 QuadRound(bs0, bs1, bm3, 0x1429296706ca6351ull, 0xd5a79147c6e00bf3ull);
340 ShiftMessageB(am2, am3, am0);
341 ShiftMessageB(bm2, bm3, bm0);
342 QuadRound(as0, as1, am0, 0x53380d134d2c6dfcull, 0x2e1b213827b70a85ull);
343 QuadRound(bs0, bs1, bm0, 0x53380d134d2c6dfcull, 0x2e1b213827b70a85ull);
344 ShiftMessageB(am3, am0, am1);
345 ShiftMessageB(bm3, bm0, bm1);
346 QuadRound(as0, as1, am1, 0x92722c8581c2c92eull, 0x766a0abb650a7354ull);
347 QuadRound(bs0, bs1, bm1, 0x92722c8581c2c92eull, 0x766a0abb650a7354ull);
348 ShiftMessageB(am0, am1, am2);
349 ShiftMessageB(bm0, bm1, bm2);
350 QuadRound(as0, as1, am2, 0xc76c51a3c24b8b70ull, 0xa81a664ba2bfe8A1ull);
351 QuadRound(bs0, bs1, bm2, 0xc76c51a3c24b8b70ull, 0xa81a664ba2bfe8A1ull);
352 ShiftMessageB(am1, am2, am3);
353 ShiftMessageB(bm1, bm2, bm3);
354 QuadRound(as0, as1, am3, 0x106aa070f40e3585ull, 0xd6990624d192e819ull);
355 QuadRound(bs0, bs1, bm3, 0x106aa070f40e3585ull, 0xd6990624d192e819ull);
356 ShiftMessageB(am2, am3, am0);
357 ShiftMessageB(bm2, bm3, bm0);
358 QuadRound(as0, as1, am0, 0x34b0bcb52748774cull, 0x1e376c0819a4c116ull);
359 QuadRound(bs0, bs1, bm0, 0x34b0bcb52748774cull, 0x1e376c0819a4c116ull);
360 ShiftMessageB(am3, am0, am1);
361 ShiftMessageB(bm3, bm0, bm1);
362 QuadRound(as0, as1, am1, 0x682e6ff35b9cca4full, 0x4ed8aa4a391c0cb3ull);
363 QuadRound(bs0, bs1, bm1, 0x682e6ff35b9cca4full, 0x4ed8aa4a391c0cb3ull);
364 ShiftMessageC(am0, am1, am2);
365 ShiftMessageC(bm0, bm1, bm2);
366 QuadRound(as0, as1, am2, 0x8cc7020884c87814ull, 0x78a5636f748f82eeull);
367 QuadRound(bs0, bs1, bm2, 0x8cc7020884c87814ull, 0x78a5636f748f82eeull);
368 ShiftMessageC(am1, am2, am3);
369 ShiftMessageC(bm1, bm2, bm3);
370 QuadRound(as0, as1, am3, 0xc67178f2bef9a3f7ull, 0xa4506ceb90befffaull);
371 QuadRound(bs0, bs1, bm3, 0xc67178f2bef9a3f7ull, 0xa4506ceb90befffaull);
372 as0 = _mm_add_epi32(as0, _mm_load_si128((const __m128i *)INIT0));
373 bs0 = _mm_add_epi32(bs0, _mm_load_si128((const __m128i *)INIT0));
374 as1 = _mm_add_epi32(as1, _mm_load_si128((const __m128i *)INIT1));
375 bs1 = _mm_add_epi32(bs1, _mm_load_si128((const __m128i *)INIT1));
376
377 /* Extract hash into out */
378 Unshuffle(as0, as1);
379 Unshuffle(bs0, bs1);
380 Save(out, as0);
381 Save(out + 16, as1);
382 Save(out + 32, bs0);
383 Save(out + 48, bs1);
384}
385} // namespace sha256d64_shani
386
387#endif
k1
static const uint8_t k1[32]
Definition chacha_poly_aead.cpp:20
sha256_shani
Definition sha256.cpp:33
sha256_shani::Transform
void Transform(uint32_t *s, const uint8_t *chunk, size_t blocks)
sha256d64_shani
Definition sha256.cpp:29
sha256d64_shani::Transform_2way
void Transform_2way(uint8_t *out, const uint8_t *in)
Shuffle
void Shuffle(I first, I last, R &&rng)
More efficient than using std::shuffle on a FastRandomContext.
Definition random.h:291
GetRand
T GetRand(T nMax=std::numeric_limits< T >::max()) noexcept
Generate a uniform random integer of type T in the range [0..nMax) nMax defaults to std::numeric_limi...
Definition random.h:85
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