Bitcoin Core 22.99.0
P2P Digital Currency
sha256_shani.cpp
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1// Copyright (c) 2018-2020 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 <stdint.h>
12#include <immintrin.h>
13
14namespace {
15
16alignas(__m128i) const uint8_t MASK[16] = {0x03, 0x02, 0x01, 0x00, 0x07, 0x06, 0x05, 0x04, 0x0b, 0x0a, 0x09, 0x08, 0x0f, 0x0e, 0x0d, 0x0c};
17alignas(__m128i) const uint8_t INIT0[16] = {0x8c, 0x68, 0x05, 0x9b, 0x7f, 0x52, 0x0e, 0x51, 0x85, 0xae, 0x67, 0xbb, 0x67, 0xe6, 0x09, 0x6a};
18alignas(__m128i) const uint8_t INIT1[16] = {0x19, 0xcd, 0xe0, 0x5b, 0xab, 0xd9, 0x83, 0x1f, 0x3a, 0xf5, 0x4f, 0xa5, 0x72, 0xf3, 0x6e, 0x3c};
19
20void inline __attribute__((always_inline)) QuadRound(__m128i& state0, __m128i& state1, uint64_t k1, uint64_t k0)
21{
22 const __m128i msg = _mm_set_epi64x(k1, k0);
23 state1 = _mm_sha256rnds2_epu32(state1, state0, msg);
24 state0 = _mm_sha256rnds2_epu32(state0, state1, _mm_shuffle_epi32(msg, 0x0e));
25}
26
27void inline __attribute__((always_inline)) QuadRound(__m128i& state0, __m128i& state1, __m128i m, uint64_t k1, uint64_t k0)
28{
29 const __m128i msg = _mm_add_epi32(m, _mm_set_epi64x(k1, k0));
30 state1 = _mm_sha256rnds2_epu32(state1, state0, msg);
31 state0 = _mm_sha256rnds2_epu32(state0, state1, _mm_shuffle_epi32(msg, 0x0e));
32}
33
34void inline __attribute__((always_inline)) ShiftMessageA(__m128i& m0, __m128i m1)
35{
36 m0 = _mm_sha256msg1_epu32(m0, m1);
37}
38
39void inline __attribute__((always_inline)) ShiftMessageC(__m128i& m0, __m128i m1, __m128i& m2)
40{
41 m2 = _mm_sha256msg2_epu32(_mm_add_epi32(m2, _mm_alignr_epi8(m1, m0, 4)), m1);
42}
43
44void inline __attribute__((always_inline)) ShiftMessageB(__m128i& m0, __m128i m1, __m128i& m2)
45{
46 ShiftMessageC(m0, m1, m2);
47 ShiftMessageA(m0, m1);
48}
49
50void inline __attribute__((always_inline)) Shuffle(__m128i& s0, __m128i& s1)
51{
52 const __m128i t1 = _mm_shuffle_epi32(s0, 0xB1);
53 const __m128i t2 = _mm_shuffle_epi32(s1, 0x1B);
54 s0 = _mm_alignr_epi8(t1, t2, 0x08);
55 s1 = _mm_blend_epi16(t2, t1, 0xF0);
56}
57
58void inline __attribute__((always_inline)) Unshuffle(__m128i& s0, __m128i& s1)
59{
60 const __m128i t1 = _mm_shuffle_epi32(s0, 0x1B);
61 const __m128i t2 = _mm_shuffle_epi32(s1, 0xB1);
62 s0 = _mm_blend_epi16(t1, t2, 0xF0);
63 s1 = _mm_alignr_epi8(t2, t1, 0x08);
64}
65
66__m128i inline __attribute__((always_inline)) Load(const unsigned char* in)
67{
68 return _mm_shuffle_epi8(_mm_loadu_si128((const __m128i*)in), _mm_load_si128((const __m128i*)MASK));
69}
70
71void inline __attribute__((always_inline)) Save(unsigned char* out, __m128i s)
72{
73 _mm_storeu_si128((__m128i*)out, _mm_shuffle_epi8(s, _mm_load_si128((const __m128i*)MASK)));
74}
75}
76
77namespace sha256_shani {
78void Transform(uint32_t* s, const unsigned char* chunk, size_t blocks)
79{
80 __m128i m0, m1, m2, m3, s0, s1, so0, so1;
81
82 /* Load state */
83 s0 = _mm_loadu_si128((const __m128i*)s);
84 s1 = _mm_loadu_si128((const __m128i*)(s + 4));
85 Shuffle(s0, s1);
86
87 while (blocks--) {
88 /* Remember old state */
89 so0 = s0;
90 so1 = s1;
91
92 /* Load data and transform */
93 m0 = Load(chunk);
94 QuadRound(s0, s1, m0, 0xe9b5dba5b5c0fbcfull, 0x71374491428a2f98ull);
95 m1 = Load(chunk + 16);
96 QuadRound(s0, s1, m1, 0xab1c5ed5923f82a4ull, 0x59f111f13956c25bull);
97 ShiftMessageA(m0, m1);
98 m2 = Load(chunk + 32);
99 QuadRound(s0, s1, m2, 0x550c7dc3243185beull, 0x12835b01d807aa98ull);
100 ShiftMessageA(m1, m2);
101 m3 = Load(chunk + 48);
102 QuadRound(s0, s1, m3, 0xc19bf1749bdc06a7ull, 0x80deb1fe72be5d74ull);
103 ShiftMessageB(m2, m3, m0);
104 QuadRound(s0, s1, m0, 0x240ca1cc0fc19dc6ull, 0xefbe4786E49b69c1ull);
105 ShiftMessageB(m3, m0, m1);
106 QuadRound(s0, s1, m1, 0x76f988da5cb0a9dcull, 0x4a7484aa2de92c6full);
107 ShiftMessageB(m0, m1, m2);
108 QuadRound(s0, s1, m2, 0xbf597fc7b00327c8ull, 0xa831c66d983e5152ull);
109 ShiftMessageB(m1, m2, m3);
110 QuadRound(s0, s1, m3, 0x1429296706ca6351ull, 0xd5a79147c6e00bf3ull);
111 ShiftMessageB(m2, m3, m0);
112 QuadRound(s0, s1, m0, 0x53380d134d2c6dfcull, 0x2e1b213827b70a85ull);
113 ShiftMessageB(m3, m0, m1);
114 QuadRound(s0, s1, m1, 0x92722c8581c2c92eull, 0x766a0abb650a7354ull);
115 ShiftMessageB(m0, m1, m2);
116 QuadRound(s0, s1, m2, 0xc76c51A3c24b8b70ull, 0xa81a664ba2bfe8a1ull);
117 ShiftMessageB(m1, m2, m3);
118 QuadRound(s0, s1, m3, 0x106aa070f40e3585ull, 0xd6990624d192e819ull);
119 ShiftMessageB(m2, m3, m0);
120 QuadRound(s0, s1, m0, 0x34b0bcb52748774cull, 0x1e376c0819a4c116ull);
121 ShiftMessageB(m3, m0, m1);
122 QuadRound(s0, s1, m1, 0x682e6ff35b9cca4full, 0x4ed8aa4a391c0cb3ull);
123 ShiftMessageC(m0, m1, m2);
124 QuadRound(s0, s1, m2, 0x8cc7020884c87814ull, 0x78a5636f748f82eeull);
125 ShiftMessageC(m1, m2, m3);
126 QuadRound(s0, s1, m3, 0xc67178f2bef9A3f7ull, 0xa4506ceb90befffaull);
127
128 /* Combine with old state */
129 s0 = _mm_add_epi32(s0, so0);
130 s1 = _mm_add_epi32(s1, so1);
131
132 /* Advance */
133 chunk += 64;
134 }
135
136 Unshuffle(s0, s1);
137 _mm_storeu_si128((__m128i*)s, s0);
138 _mm_storeu_si128((__m128i*)(s + 4), s1);
139}
140}
141
142namespace sha256d64_shani {
143
144void Transform_2way(unsigned char* out, const unsigned char* in)
145{
146 __m128i am0, am1, am2, am3, as0, as1, aso0, aso1;
147 __m128i bm0, bm1, bm2, bm3, bs0, bs1, bso0, bso1;
148
149 /* Transform 1 */
150 bs0 = as0 = _mm_load_si128((const __m128i*)INIT0);
151 bs1 = as1 = _mm_load_si128((const __m128i*)INIT1);
152 am0 = Load(in);
153 bm0 = Load(in + 64);
154 QuadRound(as0, as1, am0, 0xe9b5dba5b5c0fbcfull, 0x71374491428a2f98ull);
155 QuadRound(bs0, bs1, bm0, 0xe9b5dba5b5c0fbcfull, 0x71374491428a2f98ull);
156 am1 = Load(in + 16);
157 bm1 = Load(in + 80);
158 QuadRound(as0, as1, am1, 0xab1c5ed5923f82a4ull, 0x59f111f13956c25bull);
159 QuadRound(bs0, bs1, bm1, 0xab1c5ed5923f82a4ull, 0x59f111f13956c25bull);
160 ShiftMessageA(am0, am1);
161 ShiftMessageA(bm0, bm1);
162 am2 = Load(in + 32);
163 bm2 = Load(in + 96);
164 QuadRound(as0, as1, am2, 0x550c7dc3243185beull, 0x12835b01d807aa98ull);
165 QuadRound(bs0, bs1, bm2, 0x550c7dc3243185beull, 0x12835b01d807aa98ull);
166 ShiftMessageA(am1, am2);
167 ShiftMessageA(bm1, bm2);
168 am3 = Load(in + 48);
169 bm3 = Load(in + 112);
170 QuadRound(as0, as1, am3, 0xc19bf1749bdc06a7ull, 0x80deb1fe72be5d74ull);
171 QuadRound(bs0, bs1, bm3, 0xc19bf1749bdc06a7ull, 0x80deb1fe72be5d74ull);
172 ShiftMessageB(am2, am3, am0);
173 ShiftMessageB(bm2, bm3, bm0);
174 QuadRound(as0, as1, am0, 0x240ca1cc0fc19dc6ull, 0xefbe4786E49b69c1ull);
175 QuadRound(bs0, bs1, bm0, 0x240ca1cc0fc19dc6ull, 0xefbe4786E49b69c1ull);
176 ShiftMessageB(am3, am0, am1);
177 ShiftMessageB(bm3, bm0, bm1);
178 QuadRound(as0, as1, am1, 0x76f988da5cb0a9dcull, 0x4a7484aa2de92c6full);
179 QuadRound(bs0, bs1, bm1, 0x76f988da5cb0a9dcull, 0x4a7484aa2de92c6full);
180 ShiftMessageB(am0, am1, am2);
181 ShiftMessageB(bm0, bm1, bm2);
182 QuadRound(as0, as1, am2, 0xbf597fc7b00327c8ull, 0xa831c66d983e5152ull);
183 QuadRound(bs0, bs1, bm2, 0xbf597fc7b00327c8ull, 0xa831c66d983e5152ull);
184 ShiftMessageB(am1, am2, am3);
185 ShiftMessageB(bm1, bm2, bm3);
186 QuadRound(as0, as1, am3, 0x1429296706ca6351ull, 0xd5a79147c6e00bf3ull);
187 QuadRound(bs0, bs1, bm3, 0x1429296706ca6351ull, 0xd5a79147c6e00bf3ull);
188 ShiftMessageB(am2, am3, am0);
189 ShiftMessageB(bm2, bm3, bm0);
190 QuadRound(as0, as1, am0, 0x53380d134d2c6dfcull, 0x2e1b213827b70a85ull);
191 QuadRound(bs0, bs1, bm0, 0x53380d134d2c6dfcull, 0x2e1b213827b70a85ull);
192 ShiftMessageB(am3, am0, am1);
193 ShiftMessageB(bm3, bm0, bm1);
194 QuadRound(as0, as1, am1, 0x92722c8581c2c92eull, 0x766a0abb650a7354ull);
195 QuadRound(bs0, bs1, bm1, 0x92722c8581c2c92eull, 0x766a0abb650a7354ull);
196 ShiftMessageB(am0, am1, am2);
197 ShiftMessageB(bm0, bm1, bm2);
198 QuadRound(as0, as1, am2, 0xc76c51A3c24b8b70ull, 0xa81a664ba2bfe8a1ull);
199 QuadRound(bs0, bs1, bm2, 0xc76c51A3c24b8b70ull, 0xa81a664ba2bfe8a1ull);
200 ShiftMessageB(am1, am2, am3);
201 ShiftMessageB(bm1, bm2, bm3);
202 QuadRound(as0, as1, am3, 0x106aa070f40e3585ull, 0xd6990624d192e819ull);
203 QuadRound(bs0, bs1, bm3, 0x106aa070f40e3585ull, 0xd6990624d192e819ull);
204 ShiftMessageB(am2, am3, am0);
205 ShiftMessageB(bm2, bm3, bm0);
206 QuadRound(as0, as1, am0, 0x34b0bcb52748774cull, 0x1e376c0819a4c116ull);
207 QuadRound(bs0, bs1, bm0, 0x34b0bcb52748774cull, 0x1e376c0819a4c116ull);
208 ShiftMessageB(am3, am0, am1);
209 ShiftMessageB(bm3, bm0, bm1);
210 QuadRound(as0, as1, am1, 0x682e6ff35b9cca4full, 0x4ed8aa4a391c0cb3ull);
211 QuadRound(bs0, bs1, bm1, 0x682e6ff35b9cca4full, 0x4ed8aa4a391c0cb3ull);
212 ShiftMessageC(am0, am1, am2);
213 ShiftMessageC(bm0, bm1, bm2);
214 QuadRound(as0, as1, am2, 0x8cc7020884c87814ull, 0x78a5636f748f82eeull);
215 QuadRound(bs0, bs1, bm2, 0x8cc7020884c87814ull, 0x78a5636f748f82eeull);
216 ShiftMessageC(am1, am2, am3);
217 ShiftMessageC(bm1, bm2, bm3);
218 QuadRound(as0, as1, am3, 0xc67178f2bef9A3f7ull, 0xa4506ceb90befffaull);
219 QuadRound(bs0, bs1, bm3, 0xc67178f2bef9A3f7ull, 0xa4506ceb90befffaull);
220 as0 = _mm_add_epi32(as0, _mm_load_si128((const __m128i*)INIT0));
221 bs0 = _mm_add_epi32(bs0, _mm_load_si128((const __m128i*)INIT0));
222 as1 = _mm_add_epi32(as1, _mm_load_si128((const __m128i*)INIT1));
223 bs1 = _mm_add_epi32(bs1, _mm_load_si128((const __m128i*)INIT1));
224
225 /* Transform 2 */
226 aso0 = as0;
227 bso0 = bs0;
228 aso1 = as1;
229 bso1 = bs1;
230 QuadRound(as0, as1, 0xe9b5dba5b5c0fbcfull, 0x71374491c28a2f98ull);
231 QuadRound(bs0, bs1, 0xe9b5dba5b5c0fbcfull, 0x71374491c28a2f98ull);
232 QuadRound(as0, as1, 0xab1c5ed5923f82a4ull, 0x59f111f13956c25bull);
233 QuadRound(bs0, bs1, 0xab1c5ed5923f82a4ull, 0x59f111f13956c25bull);
234 QuadRound(as0, as1, 0x550c7dc3243185beull, 0x12835b01d807aa98ull);
235 QuadRound(bs0, bs1, 0x550c7dc3243185beull, 0x12835b01d807aa98ull);
236 QuadRound(as0, as1, 0xc19bf3749bdc06a7ull, 0x80deb1fe72be5d74ull);
237 QuadRound(bs0, bs1, 0xc19bf3749bdc06a7ull, 0x80deb1fe72be5d74ull);
238 QuadRound(as0, as1, 0x240cf2540fe1edc6ull, 0xf0fe4786649b69c1ull);
239 QuadRound(bs0, bs1, 0x240cf2540fe1edc6ull, 0xf0fe4786649b69c1ull);
240 QuadRound(as0, as1, 0x16f988fa61b9411eull, 0x6cc984be4fe9346full);
241 QuadRound(bs0, bs1, 0x16f988fa61b9411eull, 0x6cc984be4fe9346full);
242 QuadRound(as0, as1, 0xb9d99ec7b019fc65ull, 0xa88e5a6df2c65152ull);
243 QuadRound(bs0, bs1, 0xb9d99ec7b019fc65ull, 0xa88e5a6df2c65152ull);
244 QuadRound(as0, as1, 0xc7353eb0fdb1232bull, 0xe70eeaa09a1231c3ull);
245 QuadRound(bs0, bs1, 0xc7353eb0fdb1232bull, 0xe70eeaa09a1231c3ull);
246 QuadRound(as0, as1, 0xdc1eeefd5a0f118full, 0xcb976d5f3069bad5ull);
247 QuadRound(bs0, bs1, 0xdc1eeefd5a0f118full, 0xcb976d5f3069bad5ull);
248 QuadRound(as0, as1, 0xe15d5b1658f4ca9dull, 0xde0b7a040a35b689ull);
249 QuadRound(bs0, bs1, 0xe15d5b1658f4ca9dull, 0xde0b7a040a35b689ull);
250 QuadRound(as0, as1, 0x6fab9537a507ea32ull, 0x37088980007f3e86ull);
251 QuadRound(bs0, bs1, 0x6fab9537a507ea32ull, 0x37088980007f3e86ull);
252 QuadRound(as0, as1, 0xc0bbbe37cdaa3b6dull, 0x0d8cd6f117406110ull);
253 QuadRound(bs0, bs1, 0xc0bbbe37cdaa3b6dull, 0x0d8cd6f117406110ull);
254 QuadRound(as0, as1, 0x6fd15ca70b02e931ull, 0xdb48a36383613bdaull);
255 QuadRound(bs0, bs1, 0x6fd15ca70b02e931ull, 0xdb48a36383613bdaull);
256 QuadRound(as0, as1, 0x6d4378906ed41a95ull, 0x31338431521afacaull);
257 QuadRound(bs0, bs1, 0x6d4378906ed41a95ull, 0x31338431521afacaull);
258 QuadRound(as0, as1, 0x532fb63cb5c9a0e6ull, 0x9eccabbdc39c91f2ull);
259 QuadRound(bs0, bs1, 0x532fb63cb5c9a0e6ull, 0x9eccabbdc39c91f2ull);
260 QuadRound(as0, as1, 0x4c191d76a4954b68ull, 0x07237ea3d2c741c6ull);
261 QuadRound(bs0, bs1, 0x4c191d76a4954b68ull, 0x07237ea3d2c741c6ull);
262 as0 = _mm_add_epi32(as0, aso0);
263 bs0 = _mm_add_epi32(bs0, bso0);
264 as1 = _mm_add_epi32(as1, aso1);
265 bs1 = _mm_add_epi32(bs1, bso1);
266
267 /* Extract hash */
268 Unshuffle(as0, as1);
269 Unshuffle(bs0, bs1);
270 am0 = as0;
271 bm0 = bs0;
272 am1 = as1;
273 bm1 = bs1;
274
275 /* Transform 3 */
276 bs0 = as0 = _mm_load_si128((const __m128i*)INIT0);
277 bs1 = as1 = _mm_load_si128((const __m128i*)INIT1);
278 QuadRound(as0, as1, am0, 0xe9b5dba5B5c0fbcfull, 0x71374491428a2f98ull);
279 QuadRound(bs0, bs1, bm0, 0xe9b5dba5B5c0fbcfull, 0x71374491428a2f98ull);
280 QuadRound(as0, as1, am1, 0xab1c5ed5923f82a4ull, 0x59f111f13956c25bull);
281 QuadRound(bs0, bs1, bm1, 0xab1c5ed5923f82a4ull, 0x59f111f13956c25bull);
282 ShiftMessageA(am0, am1);
283 ShiftMessageA(bm0, bm1);
284 bm2 = am2 = _mm_set_epi64x(0x0ull, 0x80000000ull);
285 QuadRound(as0, as1, 0x550c7dc3243185beull, 0x12835b015807aa98ull);
286 QuadRound(bs0, bs1, 0x550c7dc3243185beull, 0x12835b015807aa98ull);
287 ShiftMessageA(am1, am2);
288 ShiftMessageA(bm1, bm2);
289 bm3 = am3 = _mm_set_epi64x(0x10000000000ull, 0x0ull);
290 QuadRound(as0, as1, 0xc19bf2749bdc06a7ull, 0x80deb1fe72be5d74ull);
291 QuadRound(bs0, bs1, 0xc19bf2749bdc06a7ull, 0x80deb1fe72be5d74ull);
292 ShiftMessageB(am2, am3, am0);
293 ShiftMessageB(bm2, bm3, bm0);
294 QuadRound(as0, as1, am0, 0x240ca1cc0fc19dc6ull, 0xefbe4786e49b69c1ull);
295 QuadRound(bs0, bs1, bm0, 0x240ca1cc0fc19dc6ull, 0xefbe4786e49b69c1ull);
296 ShiftMessageB(am3, am0, am1);
297 ShiftMessageB(bm3, bm0, bm1);
298 QuadRound(as0, as1, am1, 0x76f988da5cb0a9dcull, 0x4a7484aa2de92c6full);
299 QuadRound(bs0, bs1, bm1, 0x76f988da5cb0a9dcull, 0x4a7484aa2de92c6full);
300 ShiftMessageB(am0, am1, am2);
301 ShiftMessageB(bm0, bm1, bm2);
302 QuadRound(as0, as1, am2, 0xbf597fc7b00327c8ull, 0xa831c66d983e5152ull);
303 QuadRound(bs0, bs1, bm2, 0xbf597fc7b00327c8ull, 0xa831c66d983e5152ull);
304 ShiftMessageB(am1, am2, am3);
305 ShiftMessageB(bm1, bm2, bm3);
306 QuadRound(as0, as1, am3, 0x1429296706ca6351ull, 0xd5a79147c6e00bf3ull);
307 QuadRound(bs0, bs1, bm3, 0x1429296706ca6351ull, 0xd5a79147c6e00bf3ull);
308 ShiftMessageB(am2, am3, am0);
309 ShiftMessageB(bm2, bm3, bm0);
310 QuadRound(as0, as1, am0, 0x53380d134d2c6dfcull, 0x2e1b213827b70a85ull);
311 QuadRound(bs0, bs1, bm0, 0x53380d134d2c6dfcull, 0x2e1b213827b70a85ull);
312 ShiftMessageB(am3, am0, am1);
313 ShiftMessageB(bm3, bm0, bm1);
314 QuadRound(as0, as1, am1, 0x92722c8581c2c92eull, 0x766a0abb650a7354ull);
315 QuadRound(bs0, bs1, bm1, 0x92722c8581c2c92eull, 0x766a0abb650a7354ull);
316 ShiftMessageB(am0, am1, am2);
317 ShiftMessageB(bm0, bm1, bm2);
318 QuadRound(as0, as1, am2, 0xc76c51a3c24b8b70ull, 0xa81a664ba2bfe8A1ull);
319 QuadRound(bs0, bs1, bm2, 0xc76c51a3c24b8b70ull, 0xa81a664ba2bfe8A1ull);
320 ShiftMessageB(am1, am2, am3);
321 ShiftMessageB(bm1, bm2, bm3);
322 QuadRound(as0, as1, am3, 0x106aa070f40e3585ull, 0xd6990624d192e819ull);
323 QuadRound(bs0, bs1, bm3, 0x106aa070f40e3585ull, 0xd6990624d192e819ull);
324 ShiftMessageB(am2, am3, am0);
325 ShiftMessageB(bm2, bm3, bm0);
326 QuadRound(as0, as1, am0, 0x34b0bcb52748774cull, 0x1e376c0819a4c116ull);
327 QuadRound(bs0, bs1, bm0, 0x34b0bcb52748774cull, 0x1e376c0819a4c116ull);
328 ShiftMessageB(am3, am0, am1);
329 ShiftMessageB(bm3, bm0, bm1);
330 QuadRound(as0, as1, am1, 0x682e6ff35b9cca4full, 0x4ed8aa4a391c0cb3ull);
331 QuadRound(bs0, bs1, bm1, 0x682e6ff35b9cca4full, 0x4ed8aa4a391c0cb3ull);
332 ShiftMessageC(am0, am1, am2);
333 ShiftMessageC(bm0, bm1, bm2);
334 QuadRound(as0, as1, am2, 0x8cc7020884c87814ull, 0x78a5636f748f82eeull);
335 QuadRound(bs0, bs1, bm2, 0x8cc7020884c87814ull, 0x78a5636f748f82eeull);
336 ShiftMessageC(am1, am2, am3);
337 ShiftMessageC(bm1, bm2, bm3);
338 QuadRound(as0, as1, am3, 0xc67178f2bef9a3f7ull, 0xa4506ceb90befffaull);
339 QuadRound(bs0, bs1, bm3, 0xc67178f2bef9a3f7ull, 0xa4506ceb90befffaull);
340 as0 = _mm_add_epi32(as0, _mm_load_si128((const __m128i*)INIT0));
341 bs0 = _mm_add_epi32(bs0, _mm_load_si128((const __m128i*)INIT0));
342 as1 = _mm_add_epi32(as1, _mm_load_si128((const __m128i*)INIT1));
343 bs1 = _mm_add_epi32(bs1, _mm_load_si128((const __m128i*)INIT1));
344
345 /* Extract hash into out */
346 Unshuffle(as0, as1);
347 Unshuffle(bs0, bs1);
348 Save(out, as0);
349 Save(out + 16, as1);
350 Save(out + 32, bs0);
351 Save(out + 48, bs1);
352}
353
354}
355
356#endif
k1
static const unsigned char k1[32]
Definition: chacha_poly_aead.cpp:19
sha256_shani
Definition: sha256.cpp:38
sha256_shani::Transform
void Transform(uint32_t *s, const unsigned char *chunk, size_t blocks)
sha256d64_shani
Definition: sha256.cpp:33
sha256d64_shani::Transform_2way
void Transform_2way(unsigned char *out, const unsigned char *in)
Shuffle
void Shuffle(I first, I last, R &&rng)
More efficient than using std::shuffle on a FastRandomContext.
Definition: random.h:231
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