Bitcoin ABC 0.26.3
P2P Digital Currency
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sha256.cpp
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1// Copyright (c) 2014 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#include <crypto/sha256.h>
6
7#include <compat/cpuid.h>
8#include <crypto/common.h>
9
10#include <cassert>
11#include <cstring>
12
13#if defined(__x86_64__) || defined(__amd64__) || defined(__i386__)
14#if defined(USE_ASM)
15namespace sha256_sse4 {
16void Transform(uint32_t *s, const uint8_t *chunk, size_t blocks);
17}
18#endif
19#endif
20
21namespace sha256d64_sse41 {
22void Transform_4way(uint8_t *out, const uint8_t *in);
23}
24
25namespace sha256d64_avx2 {
26void Transform_8way(uint8_t *out, const uint8_t *in);
27}
28
29namespace sha256d64_shani {
30void Transform_2way(uint8_t *out, const uint8_t *in);
31}
32
33namespace sha256_shani {
34void Transform(uint32_t *s, const uint8_t *chunk, size_t blocks);
35}
36
37// Internal implementation code.
38namespace {
40namespace sha256 {
41 inline uint32_t Ch(uint32_t x, uint32_t y, uint32_t z) {
42 return z ^ (x & (y ^ z));
43 }
44 inline uint32_t Maj(uint32_t x, uint32_t y, uint32_t z) {
45 return (x & y) | (z & (x | y));
46 }
47 inline uint32_t Sigma0(uint32_t x) {
48 return (x >> 2 | x << 30) ^ (x >> 13 | x << 19) ^ (x >> 22 | x << 10);
49 }
50 inline uint32_t Sigma1(uint32_t x) {
51 return (x >> 6 | x << 26) ^ (x >> 11 | x << 21) ^ (x >> 25 | x << 7);
52 }
53 inline uint32_t sigma0(uint32_t x) {
54 return (x >> 7 | x << 25) ^ (x >> 18 | x << 14) ^ (x >> 3);
55 }
56 inline uint32_t sigma1(uint32_t x) {
57 return (x >> 17 | x << 15) ^ (x >> 19 | x << 13) ^ (x >> 10);
58 }
59
61 inline void Round(uint32_t a, uint32_t b, uint32_t c, uint32_t &d,
62 uint32_t e, uint32_t f, uint32_t g, uint32_t &h,
63 uint32_t k) {
64 uint32_t t1 = h + Sigma1(e) + Ch(e, f, g) + k;
65 uint32_t t2 = Sigma0(a) + Maj(a, b, c);
66 d += t1;
67 h = t1 + t2;
68 }
69
71 inline void Initialize(uint32_t *s) {
72 s[0] = 0x6a09e667ul;
73 s[1] = 0xbb67ae85ul;
74 s[2] = 0x3c6ef372ul;
75 s[3] = 0xa54ff53aul;
76 s[4] = 0x510e527ful;
77 s[5] = 0x9b05688cul;
78 s[6] = 0x1f83d9abul;
79 s[7] = 0x5be0cd19ul;
80 }
81
85 void Transform(uint32_t *s, const uint8_t *chunk, size_t blocks) {
86 while (blocks--) {
87 uint32_t a = s[0], b = s[1], c = s[2], d = s[3], e = s[4], f = s[5],
88 g = s[6], h = s[7];
89 uint32_t w0, w1, w2, w3, w4, w5, w6, w7, w8, w9, w10, w11, w12, w13,
90 w14, w15;
91
92 Round(a, b, c, d, e, f, g, h,
93 0x428a2f98 + (w0 = ReadBE32(chunk + 0)));
94 Round(h, a, b, c, d, e, f, g,
95 0x71374491 + (w1 = ReadBE32(chunk + 4)));
96 Round(g, h, a, b, c, d, e, f,
97 0xb5c0fbcf + (w2 = ReadBE32(chunk + 8)));
98 Round(f, g, h, a, b, c, d, e,
99 0xe9b5dba5 + (w3 = ReadBE32(chunk + 12)));
100 Round(e, f, g, h, a, b, c, d,
101 0x3956c25b + (w4 = ReadBE32(chunk + 16)));
102 Round(d, e, f, g, h, a, b, c,
103 0x59f111f1 + (w5 = ReadBE32(chunk + 20)));
104 Round(c, d, e, f, g, h, a, b,
105 0x923f82a4 + (w6 = ReadBE32(chunk + 24)));
106 Round(b, c, d, e, f, g, h, a,
107 0xab1c5ed5 + (w7 = ReadBE32(chunk + 28)));
108 Round(a, b, c, d, e, f, g, h,
109 0xd807aa98 + (w8 = ReadBE32(chunk + 32)));
110 Round(h, a, b, c, d, e, f, g,
111 0x12835b01 + (w9 = ReadBE32(chunk + 36)));
112 Round(g, h, a, b, c, d, e, f,
113 0x243185be + (w10 = ReadBE32(chunk + 40)));
114 Round(f, g, h, a, b, c, d, e,
115 0x550c7dc3 + (w11 = ReadBE32(chunk + 44)));
116 Round(e, f, g, h, a, b, c, d,
117 0x72be5d74 + (w12 = ReadBE32(chunk + 48)));
118 Round(d, e, f, g, h, a, b, c,
119 0x80deb1fe + (w13 = ReadBE32(chunk + 52)));
120 Round(c, d, e, f, g, h, a, b,
121 0x9bdc06a7 + (w14 = ReadBE32(chunk + 56)));
122 Round(b, c, d, e, f, g, h, a,
123 0xc19bf174 + (w15 = ReadBE32(chunk + 60)));
124
125 Round(a, b, c, d, e, f, g, h,
126 0xe49b69c1 + (w0 += sigma1(w14) + w9 + sigma0(w1)));
127 Round(h, a, b, c, d, e, f, g,
128 0xefbe4786 + (w1 += sigma1(w15) + w10 + sigma0(w2)));
129 Round(g, h, a, b, c, d, e, f,
130 0x0fc19dc6 + (w2 += sigma1(w0) + w11 + sigma0(w3)));
131 Round(f, g, h, a, b, c, d, e,
132 0x240ca1cc + (w3 += sigma1(w1) + w12 + sigma0(w4)));
133 Round(e, f, g, h, a, b, c, d,
134 0x2de92c6f + (w4 += sigma1(w2) + w13 + sigma0(w5)));
135 Round(d, e, f, g, h, a, b, c,
136 0x4a7484aa + (w5 += sigma1(w3) + w14 + sigma0(w6)));
137 Round(c, d, e, f, g, h, a, b,
138 0x5cb0a9dc + (w6 += sigma1(w4) + w15 + sigma0(w7)));
139 Round(b, c, d, e, f, g, h, a,
140 0x76f988da + (w7 += sigma1(w5) + w0 + sigma0(w8)));
141 Round(a, b, c, d, e, f, g, h,
142 0x983e5152 + (w8 += sigma1(w6) + w1 + sigma0(w9)));
143 Round(h, a, b, c, d, e, f, g,
144 0xa831c66d + (w9 += sigma1(w7) + w2 + sigma0(w10)));
145 Round(g, h, a, b, c, d, e, f,
146 0xb00327c8 + (w10 += sigma1(w8) + w3 + sigma0(w11)));
147 Round(f, g, h, a, b, c, d, e,
148 0xbf597fc7 + (w11 += sigma1(w9) + w4 + sigma0(w12)));
149 Round(e, f, g, h, a, b, c, d,
150 0xc6e00bf3 + (w12 += sigma1(w10) + w5 + sigma0(w13)));
151 Round(d, e, f, g, h, a, b, c,
152 0xd5a79147 + (w13 += sigma1(w11) + w6 + sigma0(w14)));
153 Round(c, d, e, f, g, h, a, b,
154 0x06ca6351 + (w14 += sigma1(w12) + w7 + sigma0(w15)));
155 Round(b, c, d, e, f, g, h, a,
156 0x14292967 + (w15 += sigma1(w13) + w8 + sigma0(w0)));
157
158 Round(a, b, c, d, e, f, g, h,
159 0x27b70a85 + (w0 += sigma1(w14) + w9 + sigma0(w1)));
160 Round(h, a, b, c, d, e, f, g,
161 0x2e1b2138 + (w1 += sigma1(w15) + w10 + sigma0(w2)));
162 Round(g, h, a, b, c, d, e, f,
163 0x4d2c6dfc + (w2 += sigma1(w0) + w11 + sigma0(w3)));
164 Round(f, g, h, a, b, c, d, e,
165 0x53380d13 + (w3 += sigma1(w1) + w12 + sigma0(w4)));
166 Round(e, f, g, h, a, b, c, d,
167 0x650a7354 + (w4 += sigma1(w2) + w13 + sigma0(w5)));
168 Round(d, e, f, g, h, a, b, c,
169 0x766a0abb + (w5 += sigma1(w3) + w14 + sigma0(w6)));
170 Round(c, d, e, f, g, h, a, b,
171 0x81c2c92e + (w6 += sigma1(w4) + w15 + sigma0(w7)));
172 Round(b, c, d, e, f, g, h, a,
173 0x92722c85 + (w7 += sigma1(w5) + w0 + sigma0(w8)));
174 Round(a, b, c, d, e, f, g, h,
175 0xa2bfe8a1 + (w8 += sigma1(w6) + w1 + sigma0(w9)));
176 Round(h, a, b, c, d, e, f, g,
177 0xa81a664b + (w9 += sigma1(w7) + w2 + sigma0(w10)));
178 Round(g, h, a, b, c, d, e, f,
179 0xc24b8b70 + (w10 += sigma1(w8) + w3 + sigma0(w11)));
180 Round(f, g, h, a, b, c, d, e,
181 0xc76c51a3 + (w11 += sigma1(w9) + w4 + sigma0(w12)));
182 Round(e, f, g, h, a, b, c, d,
183 0xd192e819 + (w12 += sigma1(w10) + w5 + sigma0(w13)));
184 Round(d, e, f, g, h, a, b, c,
185 0xd6990624 + (w13 += sigma1(w11) + w6 + sigma0(w14)));
186 Round(c, d, e, f, g, h, a, b,
187 0xf40e3585 + (w14 += sigma1(w12) + w7 + sigma0(w15)));
188 Round(b, c, d, e, f, g, h, a,
189 0x106aa070 + (w15 += sigma1(w13) + w8 + sigma0(w0)));
190
191 Round(a, b, c, d, e, f, g, h,
192 0x19a4c116 + (w0 += sigma1(w14) + w9 + sigma0(w1)));
193 Round(h, a, b, c, d, e, f, g,
194 0x1e376c08 + (w1 += sigma1(w15) + w10 + sigma0(w2)));
195 Round(g, h, a, b, c, d, e, f,
196 0x2748774c + (w2 += sigma1(w0) + w11 + sigma0(w3)));
197 Round(f, g, h, a, b, c, d, e,
198 0x34b0bcb5 + (w3 += sigma1(w1) + w12 + sigma0(w4)));
199 Round(e, f, g, h, a, b, c, d,
200 0x391c0cb3 + (w4 += sigma1(w2) + w13 + sigma0(w5)));
201 Round(d, e, f, g, h, a, b, c,
202 0x4ed8aa4a + (w5 += sigma1(w3) + w14 + sigma0(w6)));
203 Round(c, d, e, f, g, h, a, b,
204 0x5b9cca4f + (w6 += sigma1(w4) + w15 + sigma0(w7)));
205 Round(b, c, d, e, f, g, h, a,
206 0x682e6ff3 + (w7 += sigma1(w5) + w0 + sigma0(w8)));
207 Round(a, b, c, d, e, f, g, h,
208 0x748f82ee + (w8 += sigma1(w6) + w1 + sigma0(w9)));
209 Round(h, a, b, c, d, e, f, g,
210 0x78a5636f + (w9 += sigma1(w7) + w2 + sigma0(w10)));
211 Round(g, h, a, b, c, d, e, f,
212 0x84c87814 + (w10 += sigma1(w8) + w3 + sigma0(w11)));
213 Round(f, g, h, a, b, c, d, e,
214 0x8cc70208 + (w11 += sigma1(w9) + w4 + sigma0(w12)));
215 Round(e, f, g, h, a, b, c, d,
216 0x90befffa + (w12 += sigma1(w10) + w5 + sigma0(w13)));
217 Round(d, e, f, g, h, a, b, c,
218 0xa4506ceb + (w13 += sigma1(w11) + w6 + sigma0(w14)));
219 Round(c, d, e, f, g, h, a, b,
220 0xbef9a3f7 + (w14 + sigma1(w12) + w7 + sigma0(w15)));
221 Round(b, c, d, e, f, g, h, a,
222 0xc67178f2 + (w15 + sigma1(w13) + w8 + sigma0(w0)));
223
224 s[0] += a;
225 s[1] += b;
226 s[2] += c;
227 s[3] += d;
228 s[4] += e;
229 s[5] += f;
230 s[6] += g;
231 s[7] += h;
232 chunk += 64;
233 }
234 }
235
236 void TransformD64(uint8_t *out, const uint8_t *in) {
237 // Transform 1
238 uint32_t a = 0x6a09e667ul;
239 uint32_t b = 0xbb67ae85ul;
240 uint32_t c = 0x3c6ef372ul;
241 uint32_t d = 0xa54ff53aul;
242 uint32_t e = 0x510e527ful;
243 uint32_t f = 0x9b05688cul;
244 uint32_t g = 0x1f83d9abul;
245 uint32_t h = 0x5be0cd19ul;
246
247 uint32_t w0, w1, w2, w3, w4, w5, w6, w7, w8, w9, w10, w11, w12, w13,
248 w14, w15;
249
250 Round(a, b, c, d, e, f, g, h, 0x428a2f98ul + (w0 = ReadBE32(in + 0)));
251 Round(h, a, b, c, d, e, f, g, 0x71374491ul + (w1 = ReadBE32(in + 4)));
252 Round(g, h, a, b, c, d, e, f, 0xb5c0fbcful + (w2 = ReadBE32(in + 8)));
253 Round(f, g, h, a, b, c, d, e, 0xe9b5dba5ul + (w3 = ReadBE32(in + 12)));
254 Round(e, f, g, h, a, b, c, d, 0x3956c25bul + (w4 = ReadBE32(in + 16)));
255 Round(d, e, f, g, h, a, b, c, 0x59f111f1ul + (w5 = ReadBE32(in + 20)));
256 Round(c, d, e, f, g, h, a, b, 0x923f82a4ul + (w6 = ReadBE32(in + 24)));
257 Round(b, c, d, e, f, g, h, a, 0xab1c5ed5ul + (w7 = ReadBE32(in + 28)));
258 Round(a, b, c, d, e, f, g, h, 0xd807aa98ul + (w8 = ReadBE32(in + 32)));
259 Round(h, a, b, c, d, e, f, g, 0x12835b01ul + (w9 = ReadBE32(in + 36)));
260 Round(g, h, a, b, c, d, e, f, 0x243185beul + (w10 = ReadBE32(in + 40)));
261 Round(f, g, h, a, b, c, d, e, 0x550c7dc3ul + (w11 = ReadBE32(in + 44)));
262 Round(e, f, g, h, a, b, c, d, 0x72be5d74ul + (w12 = ReadBE32(in + 48)));
263 Round(d, e, f, g, h, a, b, c, 0x80deb1feul + (w13 = ReadBE32(in + 52)));
264 Round(c, d, e, f, g, h, a, b, 0x9bdc06a7ul + (w14 = ReadBE32(in + 56)));
265 Round(b, c, d, e, f, g, h, a, 0xc19bf174ul + (w15 = ReadBE32(in + 60)));
266 Round(a, b, c, d, e, f, g, h,
267 0xe49b69c1ul + (w0 += sigma1(w14) + w9 + sigma0(w1)));
268 Round(h, a, b, c, d, e, f, g,
269 0xefbe4786ul + (w1 += sigma1(w15) + w10 + sigma0(w2)));
270 Round(g, h, a, b, c, d, e, f,
271 0x0fc19dc6ul + (w2 += sigma1(w0) + w11 + sigma0(w3)));
272 Round(f, g, h, a, b, c, d, e,
273 0x240ca1ccul + (w3 += sigma1(w1) + w12 + sigma0(w4)));
274 Round(e, f, g, h, a, b, c, d,
275 0x2de92c6ful + (w4 += sigma1(w2) + w13 + sigma0(w5)));
276 Round(d, e, f, g, h, a, b, c,
277 0x4a7484aaul + (w5 += sigma1(w3) + w14 + sigma0(w6)));
278 Round(c, d, e, f, g, h, a, b,
279 0x5cb0a9dcul + (w6 += sigma1(w4) + w15 + sigma0(w7)));
280 Round(b, c, d, e, f, g, h, a,
281 0x76f988daul + (w7 += sigma1(w5) + w0 + sigma0(w8)));
282 Round(a, b, c, d, e, f, g, h,
283 0x983e5152ul + (w8 += sigma1(w6) + w1 + sigma0(w9)));
284 Round(h, a, b, c, d, e, f, g,
285 0xa831c66dul + (w9 += sigma1(w7) + w2 + sigma0(w10)));
286 Round(g, h, a, b, c, d, e, f,
287 0xb00327c8ul + (w10 += sigma1(w8) + w3 + sigma0(w11)));
288 Round(f, g, h, a, b, c, d, e,
289 0xbf597fc7ul + (w11 += sigma1(w9) + w4 + sigma0(w12)));
290 Round(e, f, g, h, a, b, c, d,
291 0xc6e00bf3ul + (w12 += sigma1(w10) + w5 + sigma0(w13)));
292 Round(d, e, f, g, h, a, b, c,
293 0xd5a79147ul + (w13 += sigma1(w11) + w6 + sigma0(w14)));
294 Round(c, d, e, f, g, h, a, b,
295 0x06ca6351ul + (w14 += sigma1(w12) + w7 + sigma0(w15)));
296 Round(b, c, d, e, f, g, h, a,
297 0x14292967ul + (w15 += sigma1(w13) + w8 + sigma0(w0)));
298 Round(a, b, c, d, e, f, g, h,
299 0x27b70a85ul + (w0 += sigma1(w14) + w9 + sigma0(w1)));
300 Round(h, a, b, c, d, e, f, g,
301 0x2e1b2138ul + (w1 += sigma1(w15) + w10 + sigma0(w2)));
302 Round(g, h, a, b, c, d, e, f,
303 0x4d2c6dfcul + (w2 += sigma1(w0) + w11 + sigma0(w3)));
304 Round(f, g, h, a, b, c, d, e,
305 0x53380d13ul + (w3 += sigma1(w1) + w12 + sigma0(w4)));
306 Round(e, f, g, h, a, b, c, d,
307 0x650a7354ul + (w4 += sigma1(w2) + w13 + sigma0(w5)));
308 Round(d, e, f, g, h, a, b, c,
309 0x766a0abbul + (w5 += sigma1(w3) + w14 + sigma0(w6)));
310 Round(c, d, e, f, g, h, a, b,
311 0x81c2c92eul + (w6 += sigma1(w4) + w15 + sigma0(w7)));
312 Round(b, c, d, e, f, g, h, a,
313 0x92722c85ul + (w7 += sigma1(w5) + w0 + sigma0(w8)));
314 Round(a, b, c, d, e, f, g, h,
315 0xa2bfe8a1ul + (w8 += sigma1(w6) + w1 + sigma0(w9)));
316 Round(h, a, b, c, d, e, f, g,
317 0xa81a664bul + (w9 += sigma1(w7) + w2 + sigma0(w10)));
318 Round(g, h, a, b, c, d, e, f,
319 0xc24b8b70ul + (w10 += sigma1(w8) + w3 + sigma0(w11)));
320 Round(f, g, h, a, b, c, d, e,
321 0xc76c51a3ul + (w11 += sigma1(w9) + w4 + sigma0(w12)));
322 Round(e, f, g, h, a, b, c, d,
323 0xd192e819ul + (w12 += sigma1(w10) + w5 + sigma0(w13)));
324 Round(d, e, f, g, h, a, b, c,
325 0xd6990624ul + (w13 += sigma1(w11) + w6 + sigma0(w14)));
326 Round(c, d, e, f, g, h, a, b,
327 0xf40e3585ul + (w14 += sigma1(w12) + w7 + sigma0(w15)));
328 Round(b, c, d, e, f, g, h, a,
329 0x106aa070ul + (w15 += sigma1(w13) + w8 + sigma0(w0)));
330 Round(a, b, c, d, e, f, g, h,
331 0x19a4c116ul + (w0 += sigma1(w14) + w9 + sigma0(w1)));
332 Round(h, a, b, c, d, e, f, g,
333 0x1e376c08ul + (w1 += sigma1(w15) + w10 + sigma0(w2)));
334 Round(g, h, a, b, c, d, e, f,
335 0x2748774cul + (w2 += sigma1(w0) + w11 + sigma0(w3)));
336 Round(f, g, h, a, b, c, d, e,
337 0x34b0bcb5ul + (w3 += sigma1(w1) + w12 + sigma0(w4)));
338 Round(e, f, g, h, a, b, c, d,
339 0x391c0cb3ul + (w4 += sigma1(w2) + w13 + sigma0(w5)));
340 Round(d, e, f, g, h, a, b, c,
341 0x4ed8aa4aul + (w5 += sigma1(w3) + w14 + sigma0(w6)));
342 Round(c, d, e, f, g, h, a, b,
343 0x5b9cca4ful + (w6 += sigma1(w4) + w15 + sigma0(w7)));
344 Round(b, c, d, e, f, g, h, a,
345 0x682e6ff3ul + (w7 += sigma1(w5) + w0 + sigma0(w8)));
346 Round(a, b, c, d, e, f, g, h,
347 0x748f82eeul + (w8 += sigma1(w6) + w1 + sigma0(w9)));
348 Round(h, a, b, c, d, e, f, g,
349 0x78a5636ful + (w9 += sigma1(w7) + w2 + sigma0(w10)));
350 Round(g, h, a, b, c, d, e, f,
351 0x84c87814ul + (w10 += sigma1(w8) + w3 + sigma0(w11)));
352 Round(f, g, h, a, b, c, d, e,
353 0x8cc70208ul + (w11 += sigma1(w9) + w4 + sigma0(w12)));
354 Round(e, f, g, h, a, b, c, d,
355 0x90befffaul + (w12 += sigma1(w10) + w5 + sigma0(w13)));
356 Round(d, e, f, g, h, a, b, c,
357 0xa4506cebul + (w13 += sigma1(w11) + w6 + sigma0(w14)));
358 Round(c, d, e, f, g, h, a, b,
359 0xbef9a3f7ul + (w14 + sigma1(w12) + w7 + sigma0(w15)));
360 Round(b, c, d, e, f, g, h, a,
361 0xc67178f2ul + (w15 + sigma1(w13) + w8 + sigma0(w0)));
362
363 a += 0x6a09e667ul;
364 b += 0xbb67ae85ul;
365 c += 0x3c6ef372ul;
366 d += 0xa54ff53aul;
367 e += 0x510e527ful;
368 f += 0x9b05688cul;
369 g += 0x1f83d9abul;
370 h += 0x5be0cd19ul;
371
372 uint32_t t0 = a, t1 = b, t2 = c, t3 = d, t4 = e, t5 = f, t6 = g, t7 = h;
373
374 // Transform 2
375 Round(a, b, c, d, e, f, g, h, 0xc28a2f98ul);
376 Round(h, a, b, c, d, e, f, g, 0x71374491ul);
377 Round(g, h, a, b, c, d, e, f, 0xb5c0fbcful);
378 Round(f, g, h, a, b, c, d, e, 0xe9b5dba5ul);
379 Round(e, f, g, h, a, b, c, d, 0x3956c25bul);
380 Round(d, e, f, g, h, a, b, c, 0x59f111f1ul);
381 Round(c, d, e, f, g, h, a, b, 0x923f82a4ul);
382 Round(b, c, d, e, f, g, h, a, 0xab1c5ed5ul);
383 Round(a, b, c, d, e, f, g, h, 0xd807aa98ul);
384 Round(h, a, b, c, d, e, f, g, 0x12835b01ul);
385 Round(g, h, a, b, c, d, e, f, 0x243185beul);
386 Round(f, g, h, a, b, c, d, e, 0x550c7dc3ul);
387 Round(e, f, g, h, a, b, c, d, 0x72be5d74ul);
388 Round(d, e, f, g, h, a, b, c, 0x80deb1feul);
389 Round(c, d, e, f, g, h, a, b, 0x9bdc06a7ul);
390 Round(b, c, d, e, f, g, h, a, 0xc19bf374ul);
391 Round(a, b, c, d, e, f, g, h, 0x649b69c1ul);
392 Round(h, a, b, c, d, e, f, g, 0xf0fe4786ul);
393 Round(g, h, a, b, c, d, e, f, 0x0fe1edc6ul);
394 Round(f, g, h, a, b, c, d, e, 0x240cf254ul);
395 Round(e, f, g, h, a, b, c, d, 0x4fe9346ful);
396 Round(d, e, f, g, h, a, b, c, 0x6cc984beul);
397 Round(c, d, e, f, g, h, a, b, 0x61b9411eul);
398 Round(b, c, d, e, f, g, h, a, 0x16f988faul);
399 Round(a, b, c, d, e, f, g, h, 0xf2c65152ul);
400 Round(h, a, b, c, d, e, f, g, 0xa88e5a6dul);
401 Round(g, h, a, b, c, d, e, f, 0xb019fc65ul);
402 Round(f, g, h, a, b, c, d, e, 0xb9d99ec7ul);
403 Round(e, f, g, h, a, b, c, d, 0x9a1231c3ul);
404 Round(d, e, f, g, h, a, b, c, 0xe70eeaa0ul);
405 Round(c, d, e, f, g, h, a, b, 0xfdb1232bul);
406 Round(b, c, d, e, f, g, h, a, 0xc7353eb0ul);
407 Round(a, b, c, d, e, f, g, h, 0x3069bad5ul);
408 Round(h, a, b, c, d, e, f, g, 0xcb976d5ful);
409 Round(g, h, a, b, c, d, e, f, 0x5a0f118ful);
410 Round(f, g, h, a, b, c, d, e, 0xdc1eeefdul);
411 Round(e, f, g, h, a, b, c, d, 0x0a35b689ul);
412 Round(d, e, f, g, h, a, b, c, 0xde0b7a04ul);
413 Round(c, d, e, f, g, h, a, b, 0x58f4ca9dul);
414 Round(b, c, d, e, f, g, h, a, 0xe15d5b16ul);
415 Round(a, b, c, d, e, f, g, h, 0x007f3e86ul);
416 Round(h, a, b, c, d, e, f, g, 0x37088980ul);
417 Round(g, h, a, b, c, d, e, f, 0xa507ea32ul);
418 Round(f, g, h, a, b, c, d, e, 0x6fab9537ul);
419 Round(e, f, g, h, a, b, c, d, 0x17406110ul);
420 Round(d, e, f, g, h, a, b, c, 0x0d8cd6f1ul);
421 Round(c, d, e, f, g, h, a, b, 0xcdaa3b6dul);
422 Round(b, c, d, e, f, g, h, a, 0xc0bbbe37ul);
423 Round(a, b, c, d, e, f, g, h, 0x83613bdaul);
424 Round(h, a, b, c, d, e, f, g, 0xdb48a363ul);
425 Round(g, h, a, b, c, d, e, f, 0x0b02e931ul);
426 Round(f, g, h, a, b, c, d, e, 0x6fd15ca7ul);
427 Round(e, f, g, h, a, b, c, d, 0x521afacaul);
428 Round(d, e, f, g, h, a, b, c, 0x31338431ul);
429 Round(c, d, e, f, g, h, a, b, 0x6ed41a95ul);
430 Round(b, c, d, e, f, g, h, a, 0x6d437890ul);
431 Round(a, b, c, d, e, f, g, h, 0xc39c91f2ul);
432 Round(h, a, b, c, d, e, f, g, 0x9eccabbdul);
433 Round(g, h, a, b, c, d, e, f, 0xb5c9a0e6ul);
434 Round(f, g, h, a, b, c, d, e, 0x532fb63cul);
435 Round(e, f, g, h, a, b, c, d, 0xd2c741c6ul);
436 Round(d, e, f, g, h, a, b, c, 0x07237ea3ul);
437 Round(c, d, e, f, g, h, a, b, 0xa4954b68ul);
438 Round(b, c, d, e, f, g, h, a, 0x4c191d76ul);
439
440 w0 = t0 + a;
441 w1 = t1 + b;
442 w2 = t2 + c;
443 w3 = t3 + d;
444 w4 = t4 + e;
445 w5 = t5 + f;
446 w6 = t6 + g;
447 w7 = t7 + h;
448
449 // Transform 3
450 a = 0x6a09e667ul;
451 b = 0xbb67ae85ul;
452 c = 0x3c6ef372ul;
453 d = 0xa54ff53aul;
454 e = 0x510e527ful;
455 f = 0x9b05688cul;
456 g = 0x1f83d9abul;
457 h = 0x5be0cd19ul;
458
459 Round(a, b, c, d, e, f, g, h, 0x428a2f98ul + w0);
460 Round(h, a, b, c, d, e, f, g, 0x71374491ul + w1);
461 Round(g, h, a, b, c, d, e, f, 0xb5c0fbcful + w2);
462 Round(f, g, h, a, b, c, d, e, 0xe9b5dba5ul + w3);
463 Round(e, f, g, h, a, b, c, d, 0x3956c25bul + w4);
464 Round(d, e, f, g, h, a, b, c, 0x59f111f1ul + w5);
465 Round(c, d, e, f, g, h, a, b, 0x923f82a4ul + w6);
466 Round(b, c, d, e, f, g, h, a, 0xab1c5ed5ul + w7);
467 Round(a, b, c, d, e, f, g, h, 0x5807aa98ul);
468 Round(h, a, b, c, d, e, f, g, 0x12835b01ul);
469 Round(g, h, a, b, c, d, e, f, 0x243185beul);
470 Round(f, g, h, a, b, c, d, e, 0x550c7dc3ul);
471 Round(e, f, g, h, a, b, c, d, 0x72be5d74ul);
472 Round(d, e, f, g, h, a, b, c, 0x80deb1feul);
473 Round(c, d, e, f, g, h, a, b, 0x9bdc06a7ul);
474 Round(b, c, d, e, f, g, h, a, 0xc19bf274ul);
475 Round(a, b, c, d, e, f, g, h, 0xe49b69c1ul + (w0 += sigma0(w1)));
476 Round(h, a, b, c, d, e, f, g,
477 0xefbe4786ul + (w1 += 0xa00000ul + sigma0(w2)));
478 Round(g, h, a, b, c, d, e, f,
479 0x0fc19dc6ul + (w2 += sigma1(w0) + sigma0(w3)));
480 Round(f, g, h, a, b, c, d, e,
481 0x240ca1ccul + (w3 += sigma1(w1) + sigma0(w4)));
482 Round(e, f, g, h, a, b, c, d,
483 0x2de92c6ful + (w4 += sigma1(w2) + sigma0(w5)));
484 Round(d, e, f, g, h, a, b, c,
485 0x4a7484aaul + (w5 += sigma1(w3) + sigma0(w6)));
486 Round(c, d, e, f, g, h, a, b,
487 0x5cb0a9dcul + (w6 += sigma1(w4) + 0x100ul + sigma0(w7)));
488 Round(b, c, d, e, f, g, h, a,
489 0x76f988daul + (w7 += sigma1(w5) + w0 + 0x11002000ul));
490 Round(a, b, c, d, e, f, g, h,
491 0x983e5152ul + (w8 = 0x80000000ul + sigma1(w6) + w1));
492 Round(h, a, b, c, d, e, f, g, 0xa831c66dul + (w9 = sigma1(w7) + w2));
493 Round(g, h, a, b, c, d, e, f, 0xb00327c8ul + (w10 = sigma1(w8) + w3));
494 Round(f, g, h, a, b, c, d, e, 0xbf597fc7ul + (w11 = sigma1(w9) + w4));
495 Round(e, f, g, h, a, b, c, d, 0xc6e00bf3ul + (w12 = sigma1(w10) + w5));
496 Round(d, e, f, g, h, a, b, c, 0xd5a79147ul + (w13 = sigma1(w11) + w6));
497 Round(c, d, e, f, g, h, a, b,
498 0x06ca6351ul + (w14 = sigma1(w12) + w7 + 0x400022ul));
499 Round(b, c, d, e, f, g, h, a,
500 0x14292967ul + (w15 = 0x100ul + sigma1(w13) + w8 + sigma0(w0)));
501 Round(a, b, c, d, e, f, g, h,
502 0x27b70a85ul + (w0 += sigma1(w14) + w9 + sigma0(w1)));
503 Round(h, a, b, c, d, e, f, g,
504 0x2e1b2138ul + (w1 += sigma1(w15) + w10 + sigma0(w2)));
505 Round(g, h, a, b, c, d, e, f,
506 0x4d2c6dfcul + (w2 += sigma1(w0) + w11 + sigma0(w3)));
507 Round(f, g, h, a, b, c, d, e,
508 0x53380d13ul + (w3 += sigma1(w1) + w12 + sigma0(w4)));
509 Round(e, f, g, h, a, b, c, d,
510 0x650a7354ul + (w4 += sigma1(w2) + w13 + sigma0(w5)));
511 Round(d, e, f, g, h, a, b, c,
512 0x766a0abbul + (w5 += sigma1(w3) + w14 + sigma0(w6)));
513 Round(c, d, e, f, g, h, a, b,
514 0x81c2c92eul + (w6 += sigma1(w4) + w15 + sigma0(w7)));
515 Round(b, c, d, e, f, g, h, a,
516 0x92722c85ul + (w7 += sigma1(w5) + w0 + sigma0(w8)));
517 Round(a, b, c, d, e, f, g, h,
518 0xa2bfe8a1ul + (w8 += sigma1(w6) + w1 + sigma0(w9)));
519 Round(h, a, b, c, d, e, f, g,
520 0xa81a664bul + (w9 += sigma1(w7) + w2 + sigma0(w10)));
521 Round(g, h, a, b, c, d, e, f,
522 0xc24b8b70ul + (w10 += sigma1(w8) + w3 + sigma0(w11)));
523 Round(f, g, h, a, b, c, d, e,
524 0xc76c51a3ul + (w11 += sigma1(w9) + w4 + sigma0(w12)));
525 Round(e, f, g, h, a, b, c, d,
526 0xd192e819ul + (w12 += sigma1(w10) + w5 + sigma0(w13)));
527 Round(d, e, f, g, h, a, b, c,
528 0xd6990624ul + (w13 += sigma1(w11) + w6 + sigma0(w14)));
529 Round(c, d, e, f, g, h, a, b,
530 0xf40e3585ul + (w14 += sigma1(w12) + w7 + sigma0(w15)));
531 Round(b, c, d, e, f, g, h, a,
532 0x106aa070ul + (w15 += sigma1(w13) + w8 + sigma0(w0)));
533 Round(a, b, c, d, e, f, g, h,
534 0x19a4c116ul + (w0 += sigma1(w14) + w9 + sigma0(w1)));
535 Round(h, a, b, c, d, e, f, g,
536 0x1e376c08ul + (w1 += sigma1(w15) + w10 + sigma0(w2)));
537 Round(g, h, a, b, c, d, e, f,
538 0x2748774cul + (w2 += sigma1(w0) + w11 + sigma0(w3)));
539 Round(f, g, h, a, b, c, d, e,
540 0x34b0bcb5ul + (w3 += sigma1(w1) + w12 + sigma0(w4)));
541 Round(e, f, g, h, a, b, c, d,
542 0x391c0cb3ul + (w4 += sigma1(w2) + w13 + sigma0(w5)));
543 Round(d, e, f, g, h, a, b, c,
544 0x4ed8aa4aul + (w5 += sigma1(w3) + w14 + sigma0(w6)));
545 Round(c, d, e, f, g, h, a, b,
546 0x5b9cca4ful + (w6 += sigma1(w4) + w15 + sigma0(w7)));
547 Round(b, c, d, e, f, g, h, a,
548 0x682e6ff3ul + (w7 += sigma1(w5) + w0 + sigma0(w8)));
549 Round(a, b, c, d, e, f, g, h,
550 0x748f82eeul + (w8 += sigma1(w6) + w1 + sigma0(w9)));
551 Round(h, a, b, c, d, e, f, g,
552 0x78a5636ful + (w9 += sigma1(w7) + w2 + sigma0(w10)));
553 Round(g, h, a, b, c, d, e, f,
554 0x84c87814ul + (w10 += sigma1(w8) + w3 + sigma0(w11)));
555 Round(f, g, h, a, b, c, d, e,
556 0x8cc70208ul + (w11 += sigma1(w9) + w4 + sigma0(w12)));
557 Round(e, f, g, h, a, b, c, d,
558 0x90befffaul + (w12 += sigma1(w10) + w5 + sigma0(w13)));
559 Round(d, e, f, g, h, a, b, c,
560 0xa4506cebul + (w13 += sigma1(w11) + w6 + sigma0(w14)));
561 Round(c, d, e, f, g, h, a, b,
562 0xbef9a3f7ul + (w14 + sigma1(w12) + w7 + sigma0(w15)));
563 Round(b, c, d, e, f, g, h, a,
564 0xc67178f2ul + (w15 + sigma1(w13) + w8 + sigma0(w0)));
565
566 // Output
567 WriteBE32(out + 0, a + 0x6a09e667ul);
568 WriteBE32(out + 4, b + 0xbb67ae85ul);
569 WriteBE32(out + 8, c + 0x3c6ef372ul);
570 WriteBE32(out + 12, d + 0xa54ff53aul);
571 WriteBE32(out + 16, e + 0x510e527ful);
572 WriteBE32(out + 20, f + 0x9b05688cul);
573 WriteBE32(out + 24, g + 0x1f83d9abul);
574 WriteBE32(out + 28, h + 0x5be0cd19ul);
575 }
576
577} // namespace sha256
578
579typedef void (*TransformType)(uint32_t *, const uint8_t *, size_t);
580typedef void (*TransformD64Type)(uint8_t *, const uint8_t *);
581
582template <TransformType tr>
583void TransformD64Wrapper(uint8_t *out, const uint8_t *in) {
584 uint32_t s[8];
585 static const uint8_t padding1[64] = {
586 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
587 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
588 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0};
589 uint8_t buffer2[64] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
590 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
591 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
592 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0};
593 sha256::Initialize(s);
594 tr(s, in, 1);
595 tr(s, padding1, 1);
596 WriteBE32(buffer2 + 0, s[0]);
597 WriteBE32(buffer2 + 4, s[1]);
598 WriteBE32(buffer2 + 8, s[2]);
599 WriteBE32(buffer2 + 12, s[3]);
600 WriteBE32(buffer2 + 16, s[4]);
601 WriteBE32(buffer2 + 20, s[5]);
602 WriteBE32(buffer2 + 24, s[6]);
603 WriteBE32(buffer2 + 28, s[7]);
604 sha256::Initialize(s);
605 tr(s, buffer2, 1);
606 WriteBE32(out + 0, s[0]);
607 WriteBE32(out + 4, s[1]);
608 WriteBE32(out + 8, s[2]);
609 WriteBE32(out + 12, s[3]);
610 WriteBE32(out + 16, s[4]);
611 WriteBE32(out + 20, s[5]);
612 WriteBE32(out + 24, s[6]);
613 WriteBE32(out + 28, s[7]);
614}
615
616TransformType Transform = sha256::Transform;
617TransformD64Type TransformD64 = sha256::TransformD64;
618TransformD64Type TransformD64_2way = nullptr;
619TransformD64Type TransformD64_4way = nullptr;
620TransformD64Type TransformD64_8way = nullptr;
621
622bool SelfTest() {
623 // Input state (equal to the initial SHA256 state)
624 static const uint32_t init[8] = {0x6a09e667ul, 0xbb67ae85ul, 0x3c6ef372ul,
625 0xa54ff53aul, 0x510e527ful, 0x9b05688cul,
626 0x1f83d9abul, 0x5be0cd19ul};
627 // Some random input data to test with
628 static const uint8_t data[641] =
629 "-" // Intentionally not aligned
630 "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do "
631 "eiusmod tempor incididunt ut labore et dolore magna aliqua. Et m"
632 "olestie ac feugiat sed lectus vestibulum mattis ullamcorper. Mor"
633 "bi blandit cursus risus at ultrices mi tempus imperdiet nulla. N"
634 "unc congue nisi vita suscipit tellus mauris. Imperdiet proin fer"
635 "mentum leo vel orci. Massa tempor nec feugiat nisl pretium fusce"
636 " id velit. Telus in metus vulputate eu scelerisque felis. Mi tem"
637 "pus imperdiet nulla malesuada pellentesque. Tristique magna sit.";
638 // Expected output state for hashing the i*64 first input bytes above
639 // (excluding SHA256 padding).
640 static const uint32_t result[9][8] = {
641 {0x6a09e667ul, 0xbb67ae85ul, 0x3c6ef372ul, 0xa54ff53aul, 0x510e527ful,
642 0x9b05688cul, 0x1f83d9abul, 0x5be0cd19ul},
643 {0x91f8ec6bul, 0x4da10fe3ul, 0x1c9c292cul, 0x45e18185ul, 0x435cc111ul,
644 0x3ca26f09ul, 0xeb954caeul, 0x402a7069ul},
645 {0xcabea5acul, 0x374fb97cul, 0x182ad996ul, 0x7bd69cbful, 0x450ff900ul,
646 0xc1d2be8aul, 0x6a41d505ul, 0xe6212dc3ul},
647 {0xbcff09d6ul, 0x3e76f36eul, 0x3ecb2501ul, 0x78866e97ul, 0xe1c1e2fdul,
648 0x32f4eafful, 0x8aa6c4e5ul, 0xdfc024bcul},
649 {0xa08c5d94ul, 0x0a862f93ul, 0x6b7f2f40ul, 0x8f9fae76ul, 0x6d40439ful,
650 0x79dcee0cul, 0x3e39ff3aul, 0xdc3bdbb1ul},
651 {0x216a0895ul, 0x9f1a3662ul, 0xe99946f9ul, 0x87ba4364ul, 0x0fb5db2cul,
652 0x12bed3d3ul, 0x6689c0c7ul, 0x292f1b04ul},
653 {0xca3067f8ul, 0xbc8c2656ul, 0x37cb7e0dul, 0x9b6b8b0ful, 0x46dc380bul,
654 0xf1287f57ul, 0xc42e4b23ul, 0x3fefe94dul},
655 {0x3e4c4039ul, 0xbb6fca8cul, 0x6f27d2f7ul, 0x301e44a4ul, 0x8352ba14ul,
656 0x5769ce37ul, 0x48a1155ful, 0xc0e1c4c6ul},
657 {0xfe2fa9ddul, 0x69d0862bul, 0x1ae0db23ul, 0x471f9244ul, 0xf55c0145ul,
658 0xc30f9c3bul, 0x40a84ea0ul, 0x5b8a266cul},
659 };
660 // Expected output for each of the individual 8 64-byte messages under full
661 // double SHA256 (including padding).
662 static const uint8_t result_d64[256] = {
663 0x09, 0x3a, 0xc4, 0xd0, 0x0f, 0xf7, 0x57, 0xe1, 0x72, 0x85, 0x79, 0x42,
664 0xfe, 0xe7, 0xe0, 0xa0, 0xfc, 0x52, 0xd7, 0xdb, 0x07, 0x63, 0x45, 0xfb,
665 0x53, 0x14, 0x7d, 0x17, 0x22, 0x86, 0xf0, 0x52, 0x48, 0xb6, 0x11, 0x9e,
666 0x6e, 0x48, 0x81, 0x6d, 0xcc, 0x57, 0x1f, 0xb2, 0x97, 0xa8, 0xd5, 0x25,
667 0x9b, 0x82, 0xaa, 0x89, 0xe2, 0xfd, 0x2d, 0x56, 0xe8, 0x28, 0x83, 0x0b,
668 0xe2, 0xfa, 0x53, 0xb7, 0xd6, 0x6b, 0x07, 0x85, 0x83, 0xb0, 0x10, 0xa2,
669 0xf5, 0x51, 0x3c, 0xf9, 0x60, 0x03, 0xab, 0x45, 0x6c, 0x15, 0x6e, 0xef,
670 0xb5, 0xac, 0x3e, 0x6c, 0xdf, 0xb4, 0x92, 0x22, 0x2d, 0xce, 0xbf, 0x3e,
671 0xe9, 0xe5, 0xf6, 0x29, 0x0e, 0x01, 0x4f, 0xd2, 0xd4, 0x45, 0x65, 0xb3,
672 0xbb, 0xf2, 0x4c, 0x16, 0x37, 0x50, 0x3c, 0x6e, 0x49, 0x8c, 0x5a, 0x89,
673 0x2b, 0x1b, 0xab, 0xc4, 0x37, 0xd1, 0x46, 0xe9, 0x3d, 0x0e, 0x85, 0xa2,
674 0x50, 0x73, 0xa1, 0x5e, 0x54, 0x37, 0xd7, 0x94, 0x17, 0x56, 0xc2, 0xd8,
675 0xe5, 0x9f, 0xed, 0x4e, 0xae, 0x15, 0x42, 0x06, 0x0d, 0x74, 0x74, 0x5e,
676 0x24, 0x30, 0xce, 0xd1, 0x9e, 0x50, 0xa3, 0x9a, 0xb8, 0xf0, 0x4a, 0x57,
677 0x69, 0x78, 0x67, 0x12, 0x84, 0x58, 0xbe, 0xc7, 0x36, 0xaa, 0xee, 0x7c,
678 0x64, 0xa3, 0x76, 0xec, 0xff, 0x55, 0x41, 0x00, 0x2a, 0x44, 0x68, 0x4d,
679 0xb6, 0x53, 0x9e, 0x1c, 0x95, 0xb7, 0xca, 0xdc, 0x7f, 0x7d, 0x74, 0x27,
680 0x5c, 0x8e, 0xa6, 0x84, 0xb5, 0xac, 0x87, 0xa9, 0xf3, 0xff, 0x75, 0xf2,
681 0x34, 0xcd, 0x1a, 0x3b, 0x82, 0x2c, 0x2b, 0x4e, 0x6a, 0x46, 0x30, 0xa6,
682 0x89, 0x86, 0x23, 0xac, 0xf8, 0xa5, 0x15, 0xe9, 0x0a, 0xaa, 0x1e, 0x9a,
683 0xd7, 0x93, 0x6b, 0x28, 0xe4, 0x3b, 0xfd, 0x59, 0xc6, 0xed, 0x7c, 0x5f,
684 0xa5, 0x41, 0xcb, 0x51};
685
686 // Test Transform() for 0 through 8 transformations.
687 for (size_t i = 0; i <= 8; ++i) {
688 uint32_t state[8];
689 std::copy(init, init + 8, state);
690 Transform(state, data + 1, i);
691 if (!std::equal(state, state + 8, result[i])) {
692 return false;
693 }
694 }
695
696 // Test TransformD64
697 {
698 uint8_t out[32];
699 TransformD64(out, data + 1);
700 if (!std::equal(out, out + 32, result_d64)) {
701 return false;
702 }
703 }
704
705 // Test TransformD64_2way, if available.
706 if (TransformD64_2way) {
707 uint8_t out[64];
708 TransformD64_2way(out, data + 1);
709 if (!std::equal(out, out + 64, result_d64)) {
710 return false;
711 }
712 }
713
714 // Test TransformD64_4way, if available.
715 if (TransformD64_4way) {
716 uint8_t out[128];
717 TransformD64_4way(out, data + 1);
718 if (!std::equal(out, out + 128, result_d64)) {
719 return false;
720 }
721 }
722
723 // Test TransformD64_8way, if available.
724 if (TransformD64_8way) {
725 uint8_t out[256];
726 TransformD64_8way(out, data + 1);
727 if (!std::equal(out, out + 256, result_d64)) {
728 return false;
729 }
730 }
731
732 return true;
733}
734
735#if defined(USE_ASM) && \
736 (defined(__x86_64__) || defined(__amd64__) || defined(__i386__))
738bool AVXEnabled() {
739 uint32_t a, d;
740 __asm__("xgetbv" : "=a"(a), "=d"(d) : "c"(0));
741 return (a & 6) == 6;
742}
743#endif
744} // namespace
745
746std::string SHA256AutoDetect() {
747 std::string ret = "standard";
748#if defined(USE_ASM) && defined(HAVE_GETCPUID)
749 bool have_sse4 = false;
750 bool have_xsave = false;
751 bool have_avx = false;
752 bool have_avx2 = false;
753 bool have_shani = false;
754 bool enabled_avx = false;
755
756 (void)AVXEnabled;
757 (void)have_sse4;
758 (void)have_avx;
759 (void)have_xsave;
760 (void)have_avx2;
761 (void)have_shani;
762 (void)enabled_avx;
763
764 uint32_t eax, ebx, ecx, edx;
765 GetCPUID(1, 0, eax, ebx, ecx, edx);
766 have_sse4 = (ecx >> 19) & 1;
767 have_xsave = (ecx >> 27) & 1;
768 have_avx = (ecx >> 28) & 1;
769 if (have_xsave && have_avx) {
770 enabled_avx = AVXEnabled();
771 }
772 if (have_sse4) {
773 GetCPUID(7, 0, eax, ebx, ecx, edx);
774 have_avx2 = (ebx >> 5) & 1;
775 have_shani = (ebx >> 29) & 1;
776 }
777
778#if defined(ENABLE_SHANI) && !defined(BUILD_BITCOIN_INTERNAL)
779 if (have_shani) {
780 Transform = sha256_shani::Transform;
781 TransformD64 = TransformD64Wrapper<sha256_shani::Transform>;
782 TransformD64_2way = sha256d64_shani::Transform_2way;
783 ret = "shani(1way,2way)";
784 have_sse4 = false; // Disable SSE4/AVX2;
785 have_avx2 = false;
786 }
787#endif
788
789 if (have_sse4) {
790#if defined(__x86_64__) || defined(__amd64__)
791 Transform = sha256_sse4::Transform;
792 TransformD64 = TransformD64Wrapper<sha256_sse4::Transform>;
793 ret = "sse4(1way)";
794#endif
795#if defined(ENABLE_SSE41) && !defined(BUILD_BITCOIN_INTERNAL)
796 TransformD64_4way = sha256d64_sse41::Transform_4way;
797 ret += ",sse41(4way)";
798#endif
799 }
800
801#if defined(ENABLE_AVX2) && !defined(BUILD_BITCOIN_INTERNAL)
802 if (have_avx2 && have_avx && enabled_avx) {
803 TransformD64_8way = sha256d64_avx2::Transform_8way;
804 ret += ",avx2(8way)";
805 }
806#endif
807#endif
808
809 assert(SelfTest());
810 return ret;
811}
812
814
815CSHA256::CSHA256() : bytes(0) {
816 sha256::Initialize(s);
817}
818
819CSHA256 &CSHA256::Write(const uint8_t *data, size_t len) {
820 const uint8_t *end = data + len;
821 size_t bufsize = bytes % 64;
822 if (bufsize && bufsize + len >= 64) {
823 // Fill the buffer, and process it.
824 memcpy(buf + bufsize, data, 64 - bufsize);
825 bytes += 64 - bufsize;
826 data += 64 - bufsize;
827 Transform(s, buf, 1);
828 bufsize = 0;
829 }
830 if (end - data >= 64) {
831 size_t blocks = (end - data) / 64;
832 Transform(s, data, blocks);
833 data += 64 * blocks;
834 bytes += 64 * blocks;
835 }
836 if (end > data) {
837 // Fill the buffer with what remains.
838 memcpy(buf + bufsize, data, end - data);
839 bytes += end - data;
840 }
841 return *this;
842}
843
844void CSHA256::Finalize(uint8_t hash[OUTPUT_SIZE]) {
845 static const uint8_t pad[64] = {0x80};
846 uint8_t sizedesc[8];
847 WriteBE64(sizedesc, bytes << 3);
848 Write(pad, 1 + ((119 - (bytes % 64)) % 64));
849 Write(sizedesc, 8);
850 WriteBE32(hash, s[0]);
851 WriteBE32(hash + 4, s[1]);
852 WriteBE32(hash + 8, s[2]);
853 WriteBE32(hash + 12, s[3]);
854 WriteBE32(hash + 16, s[4]);
855 WriteBE32(hash + 20, s[5]);
856 WriteBE32(hash + 24, s[6]);
857 WriteBE32(hash + 28, s[7]);
858}
859
860CSHA256 &CSHA256::Reset() {
861 bytes = 0;
862 sha256::Initialize(s);
863 return *this;
864}
865
866void SHA256D64(uint8_t *out, const uint8_t *in, size_t blocks) {
867 if (TransformD64_8way) {
868 while (blocks >= 8) {
869 TransformD64_8way(out, in);
870 out += 256;
871 in += 512;
872 blocks -= 8;
873 }
874 }
875 if (TransformD64_4way) {
876 while (blocks >= 4) {
877 TransformD64_4way(out, in);
878 out += 128;
879 in += 256;
880 blocks -= 4;
881 }
882 }
883 if (TransformD64_2way) {
884 while (blocks >= 2) {
885 TransformD64_2way(out, in);
886 out += 64;
887 in += 128;
888 blocks -= 2;
889 }
890 }
891 while (blocks) {
892 TransformD64(out, in);
893 out += 32;
894 in += 64;
895 --blocks;
896 }
897}
CSHA256
A hasher class for SHA-256.
Definition sha256.h:13
CSHA256::Reset
CSHA256 & Reset()
Definition sha256.cpp:860
CSHA256::buf
uint8_t buf[64]
Definition sha256.h:16
CSHA256::Write
CSHA256 & Write(const uint8_t *data, size_t len)
Definition sha256.cpp:819
CSHA256::Finalize
void Finalize(uint8_t hash[OUTPUT_SIZE])
Definition sha256.cpp:844
CSHA256::bytes
uint64_t bytes
Definition sha256.h:17
CSHA256::s
uint32_t s[8]
Definition sha256.h:15
CSHA256::CSHA256
CSHA256()
Definition sha256.cpp:815
WriteBE64
static void WriteBE64(uint8_t *ptr, uint64_t x)
Definition common.h:73
WriteBE32
static void WriteBE32(uint8_t *ptr, uint32_t x)
Definition common.h:68
ReadBE32
static uint32_t ReadBE32(const uint8_t *ptr)
Definition common.h:56
sigma1
#define sigma1(x)
Definition hash_impl.h:22
Maj
#define Maj(x, y, z)
Definition hash_impl.h:18
Round
#define Round(a, b, c, d, e, f, g, h, k, w)
Definition hash_impl.h:24
Sigma0
#define Sigma0(x)
Definition hash_impl.h:19
sigma0
#define sigma0(x)
Definition hash_impl.h:21
Sigma1
#define Sigma1(x)
Definition hash_impl.h:20
Ch
#define Ch(x, y, z)
Definition hash_impl.h:17
sha256_shani
Definition sha256.cpp:33
sha256_shani::Transform
void Transform(uint32_t *s, const uint8_t *chunk, size_t blocks)
sha256
Internal SHA-256 implementation.
Definition sha256.cpp:40
sha256d64_avx2
Definition sha256.cpp:25
sha256d64_avx2::Transform_8way
void Transform_8way(uint8_t *out, const uint8_t *in)
sha256d64_shani
Definition sha256.cpp:29
sha256d64_shani::Transform_2way
void Transform_2way(uint8_t *out, const uint8_t *in)
sha256d64_sse41
Definition sha256.cpp:21
sha256d64_sse41::Transform_4way
void Transform_4way(uint8_t *out, const uint8_t *in)
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
SHA256D64
void SHA256D64(uint8_t *out, const uint8_t *in, size_t blocks)
Compute multiple double-SHA256's of 64-byte blobs.
Definition sha256.cpp:866
SHA256AutoDetect
std::string SHA256AutoDetect()
Autodetect the best available SHA256 implementation.
Definition sha256.cpp:746
assert
assert(!tx.IsCoinBase())
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