Line data Source code
1 : // Copyright (c) 2014-2019 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 : #include <crypto/common.h>
7 :
8 : #include <assert.h>
9 : #include <string.h>
10 :
11 : #if !defined(DISABLE_OPTIMIZED_SHA256)
12 : #include <compat/cpuid.h>
13 :
14 : #if defined(__linux__) && defined(ENABLE_ARM_SHANI)
15 : #include <sys/auxv.h>
16 : #include <asm/hwcap.h>
17 : #endif
18 :
19 : #if defined(__APPLE__) && defined(ENABLE_ARM_SHANI)
20 : #include <sys/types.h>
21 : #include <sys/sysctl.h>
22 : #endif
23 :
24 : #if defined(__x86_64__) || defined(__amd64__) || defined(__i386__)
25 : namespace sha256_sse4
26 : {
27 : void Transform(uint32_t* s, const unsigned char* chunk, size_t blocks);
28 : }
29 : #endif
30 :
31 : namespace sha256d64_sse41
32 : {
33 : void Transform_4way(unsigned char* out, const unsigned char* in);
34 : }
35 :
36 : namespace sha256d64_avx2
37 : {
38 : void Transform_8way(unsigned char* out, const unsigned char* in);
39 : }
40 :
41 : namespace sha256d64_x86_shani
42 : {
43 : void Transform_2way(unsigned char* out, const unsigned char* in);
44 : }
45 :
46 : namespace sha256_x86_shani
47 : {
48 : void Transform(uint32_t* s, const unsigned char* chunk, size_t blocks);
49 : }
50 :
51 : namespace sha256_arm_shani
52 : {
53 : void Transform(uint32_t* s, const unsigned char* chunk, size_t blocks);
54 : }
55 :
56 : namespace sha256d64_arm_shani
57 : {
58 : void Transform_2way(unsigned char* out, const unsigned char* in);
59 : }
60 : #endif // DISABLE_OPTIMIZED_SHA256
61 :
62 : // Internal implementation code.
63 : namespace
64 : {
65 : /// Internal SHA-256 implementation.
66 : namespace sha256
67 : {
68 672333340 : uint32_t inline Ch(uint32_t x, uint32_t y, uint32_t z) { return z ^ (x & (y ^ z)); }
69 672336445 : uint32_t inline Maj(uint32_t x, uint32_t y, uint32_t z) { return (x & y) | (z & (x | y)); }
70 672335891 : uint32_t inline Sigma0(uint32_t x) { return (x >> 2 | x << 30) ^ (x >> 13 | x << 19) ^ (x >> 22 | x << 10); }
71 672330858 : uint32_t inline Sigma1(uint32_t x) { return (x >> 6 | x << 26) ^ (x >> 11 | x << 21) ^ (x >> 25 | x << 7); }
72 487468566 : uint32_t inline sigma0(uint32_t x) { return (x >> 7 | x << 25) ^ (x >> 18 | x << 14) ^ (x >> 3); }
73 489268497 : uint32_t inline sigma1(uint32_t x) { return (x >> 17 | x << 15) ^ (x >> 19 | x << 13) ^ (x >> 10); }
74 :
75 : /** One round of SHA-256. */
76 672332805 : void inline Round(uint32_t a, uint32_t b, uint32_t c, uint32_t& d, uint32_t e, uint32_t f, uint32_t g, uint32_t& h, uint32_t k)
77 : {
78 672332805 : uint32_t t1 = h + Sigma1(e) + Ch(e, f, g) + k;
79 672332805 : uint32_t t2 = Sigma0(a) + Maj(a, b, c);
80 672332805 : d += t1;
81 672332805 : h = t1 + t2;
82 672332805 : }
83 :
84 : /** Initialize SHA-256 state. */
85 4772174 : void inline Initialize(uint32_t* s)
86 : {
87 4772174 : s[0] = 0x6a09e667ul;
88 4772174 : s[1] = 0xbb67ae85ul;
89 4772174 : s[2] = 0x3c6ef372ul;
90 4772174 : s[3] = 0xa54ff53aul;
91 4772174 : s[4] = 0x510e527ful;
92 4772174 : s[5] = 0x9b05688cul;
93 4772174 : s[6] = 0x1f83d9abul;
94 4772174 : s[7] = 0x5be0cd19ul;
95 4772174 : }
96 :
97 : /** Perform a number of SHA-256 transformations, processing 64-byte chunks. */
98 8223043 : void Transform(uint32_t* s, const unsigned char* chunk, size_t blocks)
99 : {
100 17829477 : while (blocks--) {
101 9606434 : uint32_t a = s[0], b = s[1], c = s[2], d = s[3], e = s[4], f = s[5], g = s[6], h = s[7];
102 : uint32_t w0, w1, w2, w3, w4, w5, w6, w7, w8, w9, w10, w11, w12, w13, w14, w15;
103 :
104 9606434 : Round(a, b, c, d, e, f, g, h, 0x428a2f98 + (w0 = ReadBE32(chunk + 0)));
105 9606434 : Round(h, a, b, c, d, e, f, g, 0x71374491 + (w1 = ReadBE32(chunk + 4)));
106 9606434 : Round(g, h, a, b, c, d, e, f, 0xb5c0fbcf + (w2 = ReadBE32(chunk + 8)));
107 9606434 : Round(f, g, h, a, b, c, d, e, 0xe9b5dba5 + (w3 = ReadBE32(chunk + 12)));
108 9606434 : Round(e, f, g, h, a, b, c, d, 0x3956c25b + (w4 = ReadBE32(chunk + 16)));
109 9606434 : Round(d, e, f, g, h, a, b, c, 0x59f111f1 + (w5 = ReadBE32(chunk + 20)));
110 9606434 : Round(c, d, e, f, g, h, a, b, 0x923f82a4 + (w6 = ReadBE32(chunk + 24)));
111 9606434 : Round(b, c, d, e, f, g, h, a, 0xab1c5ed5 + (w7 = ReadBE32(chunk + 28)));
112 9606434 : Round(a, b, c, d, e, f, g, h, 0xd807aa98 + (w8 = ReadBE32(chunk + 32)));
113 9606434 : Round(h, a, b, c, d, e, f, g, 0x12835b01 + (w9 = ReadBE32(chunk + 36)));
114 9606434 : Round(g, h, a, b, c, d, e, f, 0x243185be + (w10 = ReadBE32(chunk + 40)));
115 9606434 : Round(f, g, h, a, b, c, d, e, 0x550c7dc3 + (w11 = ReadBE32(chunk + 44)));
116 9606434 : Round(e, f, g, h, a, b, c, d, 0x72be5d74 + (w12 = ReadBE32(chunk + 48)));
117 9606434 : Round(d, e, f, g, h, a, b, c, 0x80deb1fe + (w13 = ReadBE32(chunk + 52)));
118 9606434 : Round(c, d, e, f, g, h, a, b, 0x9bdc06a7 + (w14 = ReadBE32(chunk + 56)));
119 9606434 : Round(b, c, d, e, f, g, h, a, 0xc19bf174 + (w15 = ReadBE32(chunk + 60)));
120 :
121 9606434 : Round(a, b, c, d, e, f, g, h, 0xe49b69c1 + (w0 += sigma1(w14) + w9 + sigma0(w1)));
122 9606434 : Round(h, a, b, c, d, e, f, g, 0xefbe4786 + (w1 += sigma1(w15) + w10 + sigma0(w2)));
123 9606434 : Round(g, h, a, b, c, d, e, f, 0x0fc19dc6 + (w2 += sigma1(w0) + w11 + sigma0(w3)));
124 9606434 : Round(f, g, h, a, b, c, d, e, 0x240ca1cc + (w3 += sigma1(w1) + w12 + sigma0(w4)));
125 9606434 : Round(e, f, g, h, a, b, c, d, 0x2de92c6f + (w4 += sigma1(w2) + w13 + sigma0(w5)));
126 9606434 : Round(d, e, f, g, h, a, b, c, 0x4a7484aa + (w5 += sigma1(w3) + w14 + sigma0(w6)));
127 9606434 : Round(c, d, e, f, g, h, a, b, 0x5cb0a9dc + (w6 += sigma1(w4) + w15 + sigma0(w7)));
128 9606434 : Round(b, c, d, e, f, g, h, a, 0x76f988da + (w7 += sigma1(w5) + w0 + sigma0(w8)));
129 9606434 : Round(a, b, c, d, e, f, g, h, 0x983e5152 + (w8 += sigma1(w6) + w1 + sigma0(w9)));
130 9606434 : Round(h, a, b, c, d, e, f, g, 0xa831c66d + (w9 += sigma1(w7) + w2 + sigma0(w10)));
131 9606434 : Round(g, h, a, b, c, d, e, f, 0xb00327c8 + (w10 += sigma1(w8) + w3 + sigma0(w11)));
132 9606434 : Round(f, g, h, a, b, c, d, e, 0xbf597fc7 + (w11 += sigma1(w9) + w4 + sigma0(w12)));
133 9606434 : Round(e, f, g, h, a, b, c, d, 0xc6e00bf3 + (w12 += sigma1(w10) + w5 + sigma0(w13)));
134 9606434 : Round(d, e, f, g, h, a, b, c, 0xd5a79147 + (w13 += sigma1(w11) + w6 + sigma0(w14)));
135 9606434 : Round(c, d, e, f, g, h, a, b, 0x06ca6351 + (w14 += sigma1(w12) + w7 + sigma0(w15)));
136 9606434 : Round(b, c, d, e, f, g, h, a, 0x14292967 + (w15 += sigma1(w13) + w8 + sigma0(w0)));
137 :
138 9606434 : Round(a, b, c, d, e, f, g, h, 0x27b70a85 + (w0 += sigma1(w14) + w9 + sigma0(w1)));
139 9606434 : Round(h, a, b, c, d, e, f, g, 0x2e1b2138 + (w1 += sigma1(w15) + w10 + sigma0(w2)));
140 9606434 : Round(g, h, a, b, c, d, e, f, 0x4d2c6dfc + (w2 += sigma1(w0) + w11 + sigma0(w3)));
141 9606434 : Round(f, g, h, a, b, c, d, e, 0x53380d13 + (w3 += sigma1(w1) + w12 + sigma0(w4)));
142 9606434 : Round(e, f, g, h, a, b, c, d, 0x650a7354 + (w4 += sigma1(w2) + w13 + sigma0(w5)));
143 9606434 : Round(d, e, f, g, h, a, b, c, 0x766a0abb + (w5 += sigma1(w3) + w14 + sigma0(w6)));
144 9606434 : Round(c, d, e, f, g, h, a, b, 0x81c2c92e + (w6 += sigma1(w4) + w15 + sigma0(w7)));
145 9606434 : Round(b, c, d, e, f, g, h, a, 0x92722c85 + (w7 += sigma1(w5) + w0 + sigma0(w8)));
146 9606434 : Round(a, b, c, d, e, f, g, h, 0xa2bfe8a1 + (w8 += sigma1(w6) + w1 + sigma0(w9)));
147 9606434 : Round(h, a, b, c, d, e, f, g, 0xa81a664b + (w9 += sigma1(w7) + w2 + sigma0(w10)));
148 9606434 : Round(g, h, a, b, c, d, e, f, 0xc24b8b70 + (w10 += sigma1(w8) + w3 + sigma0(w11)));
149 9606434 : Round(f, g, h, a, b, c, d, e, 0xc76c51a3 + (w11 += sigma1(w9) + w4 + sigma0(w12)));
150 9606434 : Round(e, f, g, h, a, b, c, d, 0xd192e819 + (w12 += sigma1(w10) + w5 + sigma0(w13)));
151 9606434 : Round(d, e, f, g, h, a, b, c, 0xd6990624 + (w13 += sigma1(w11) + w6 + sigma0(w14)));
152 9606434 : Round(c, d, e, f, g, h, a, b, 0xf40e3585 + (w14 += sigma1(w12) + w7 + sigma0(w15)));
153 9606434 : Round(b, c, d, e, f, g, h, a, 0x106aa070 + (w15 += sigma1(w13) + w8 + sigma0(w0)));
154 :
155 9606434 : Round(a, b, c, d, e, f, g, h, 0x19a4c116 + (w0 += sigma1(w14) + w9 + sigma0(w1)));
156 9606434 : Round(h, a, b, c, d, e, f, g, 0x1e376c08 + (w1 += sigma1(w15) + w10 + sigma0(w2)));
157 9606434 : Round(g, h, a, b, c, d, e, f, 0x2748774c + (w2 += sigma1(w0) + w11 + sigma0(w3)));
158 9606434 : Round(f, g, h, a, b, c, d, e, 0x34b0bcb5 + (w3 += sigma1(w1) + w12 + sigma0(w4)));
159 9606434 : Round(e, f, g, h, a, b, c, d, 0x391c0cb3 + (w4 += sigma1(w2) + w13 + sigma0(w5)));
160 9606434 : Round(d, e, f, g, h, a, b, c, 0x4ed8aa4a + (w5 += sigma1(w3) + w14 + sigma0(w6)));
161 9606434 : Round(c, d, e, f, g, h, a, b, 0x5b9cca4f + (w6 += sigma1(w4) + w15 + sigma0(w7)));
162 9606434 : Round(b, c, d, e, f, g, h, a, 0x682e6ff3 + (w7 += sigma1(w5) + w0 + sigma0(w8)));
163 9606434 : Round(a, b, c, d, e, f, g, h, 0x748f82ee + (w8 += sigma1(w6) + w1 + sigma0(w9)));
164 9606434 : Round(h, a, b, c, d, e, f, g, 0x78a5636f + (w9 += sigma1(w7) + w2 + sigma0(w10)));
165 9606434 : Round(g, h, a, b, c, d, e, f, 0x84c87814 + (w10 += sigma1(w8) + w3 + sigma0(w11)));
166 9606434 : Round(f, g, h, a, b, c, d, e, 0x8cc70208 + (w11 += sigma1(w9) + w4 + sigma0(w12)));
167 9606434 : Round(e, f, g, h, a, b, c, d, 0x90befffa + (w12 += sigma1(w10) + w5 + sigma0(w13)));
168 9606434 : Round(d, e, f, g, h, a, b, c, 0xa4506ceb + (w13 += sigma1(w11) + w6 + sigma0(w14)));
169 9606434 : Round(c, d, e, f, g, h, a, b, 0xbef9a3f7 + (w14 + sigma1(w12) + w7 + sigma0(w15)));
170 9606434 : Round(b, c, d, e, f, g, h, a, 0xc67178f2 + (w15 + sigma1(w13) + w8 + sigma0(w0)));
171 :
172 9606434 : s[0] += a;
173 9606434 : s[1] += b;
174 9606434 : s[2] += c;
175 9606434 : s[3] += d;
176 9606434 : s[4] += e;
177 9606434 : s[5] += f;
178 9606434 : s[6] += g;
179 9606434 : s[7] += h;
180 9606434 : chunk += 64;
181 : }
182 8223043 : }
183 :
184 299650 : void TransformD64(unsigned char* out, const unsigned char* in)
185 : {
186 : // Transform 1
187 299650 : uint32_t a = 0x6a09e667ul;
188 299650 : uint32_t b = 0xbb67ae85ul;
189 299650 : uint32_t c = 0x3c6ef372ul;
190 299650 : uint32_t d = 0xa54ff53aul;
191 299650 : uint32_t e = 0x510e527ful;
192 299650 : uint32_t f = 0x9b05688cul;
193 299650 : uint32_t g = 0x1f83d9abul;
194 299650 : uint32_t h = 0x5be0cd19ul;
195 :
196 : uint32_t w0, w1, w2, w3, w4, w5, w6, w7, w8, w9, w10, w11, w12, w13, w14, w15;
197 :
198 299650 : Round(a, b, c, d, e, f, g, h, 0x428a2f98ul + (w0 = ReadBE32(in + 0)));
199 299650 : Round(h, a, b, c, d, e, f, g, 0x71374491ul + (w1 = ReadBE32(in + 4)));
200 299650 : Round(g, h, a, b, c, d, e, f, 0xb5c0fbcful + (w2 = ReadBE32(in + 8)));
201 299650 : Round(f, g, h, a, b, c, d, e, 0xe9b5dba5ul + (w3 = ReadBE32(in + 12)));
202 299650 : Round(e, f, g, h, a, b, c, d, 0x3956c25bul + (w4 = ReadBE32(in + 16)));
203 299650 : Round(d, e, f, g, h, a, b, c, 0x59f111f1ul + (w5 = ReadBE32(in + 20)));
204 299650 : Round(c, d, e, f, g, h, a, b, 0x923f82a4ul + (w6 = ReadBE32(in + 24)));
205 299650 : Round(b, c, d, e, f, g, h, a, 0xab1c5ed5ul + (w7 = ReadBE32(in + 28)));
206 299650 : Round(a, b, c, d, e, f, g, h, 0xd807aa98ul + (w8 = ReadBE32(in + 32)));
207 299650 : Round(h, a, b, c, d, e, f, g, 0x12835b01ul + (w9 = ReadBE32(in + 36)));
208 299650 : Round(g, h, a, b, c, d, e, f, 0x243185beul + (w10 = ReadBE32(in + 40)));
209 299650 : Round(f, g, h, a, b, c, d, e, 0x550c7dc3ul + (w11 = ReadBE32(in + 44)));
210 299650 : Round(e, f, g, h, a, b, c, d, 0x72be5d74ul + (w12 = ReadBE32(in + 48)));
211 299650 : Round(d, e, f, g, h, a, b, c, 0x80deb1feul + (w13 = ReadBE32(in + 52)));
212 299650 : Round(c, d, e, f, g, h, a, b, 0x9bdc06a7ul + (w14 = ReadBE32(in + 56)));
213 299650 : Round(b, c, d, e, f, g, h, a, 0xc19bf174ul + (w15 = ReadBE32(in + 60)));
214 299650 : Round(a, b, c, d, e, f, g, h, 0xe49b69c1ul + (w0 += sigma1(w14) + w9 + sigma0(w1)));
215 299650 : Round(h, a, b, c, d, e, f, g, 0xefbe4786ul + (w1 += sigma1(w15) + w10 + sigma0(w2)));
216 299650 : Round(g, h, a, b, c, d, e, f, 0x0fc19dc6ul + (w2 += sigma1(w0) + w11 + sigma0(w3)));
217 299650 : Round(f, g, h, a, b, c, d, e, 0x240ca1ccul + (w3 += sigma1(w1) + w12 + sigma0(w4)));
218 299650 : Round(e, f, g, h, a, b, c, d, 0x2de92c6ful + (w4 += sigma1(w2) + w13 + sigma0(w5)));
219 299650 : Round(d, e, f, g, h, a, b, c, 0x4a7484aaul + (w5 += sigma1(w3) + w14 + sigma0(w6)));
220 299650 : Round(c, d, e, f, g, h, a, b, 0x5cb0a9dcul + (w6 += sigma1(w4) + w15 + sigma0(w7)));
221 299650 : Round(b, c, d, e, f, g, h, a, 0x76f988daul + (w7 += sigma1(w5) + w0 + sigma0(w8)));
222 299650 : Round(a, b, c, d, e, f, g, h, 0x983e5152ul + (w8 += sigma1(w6) + w1 + sigma0(w9)));
223 299650 : Round(h, a, b, c, d, e, f, g, 0xa831c66dul + (w9 += sigma1(w7) + w2 + sigma0(w10)));
224 299650 : Round(g, h, a, b, c, d, e, f, 0xb00327c8ul + (w10 += sigma1(w8) + w3 + sigma0(w11)));
225 299650 : Round(f, g, h, a, b, c, d, e, 0xbf597fc7ul + (w11 += sigma1(w9) + w4 + sigma0(w12)));
226 299650 : Round(e, f, g, h, a, b, c, d, 0xc6e00bf3ul + (w12 += sigma1(w10) + w5 + sigma0(w13)));
227 299650 : Round(d, e, f, g, h, a, b, c, 0xd5a79147ul + (w13 += sigma1(w11) + w6 + sigma0(w14)));
228 299650 : Round(c, d, e, f, g, h, a, b, 0x06ca6351ul + (w14 += sigma1(w12) + w7 + sigma0(w15)));
229 299650 : Round(b, c, d, e, f, g, h, a, 0x14292967ul + (w15 += sigma1(w13) + w8 + sigma0(w0)));
230 299650 : Round(a, b, c, d, e, f, g, h, 0x27b70a85ul + (w0 += sigma1(w14) + w9 + sigma0(w1)));
231 299650 : Round(h, a, b, c, d, e, f, g, 0x2e1b2138ul + (w1 += sigma1(w15) + w10 + sigma0(w2)));
232 299650 : Round(g, h, a, b, c, d, e, f, 0x4d2c6dfcul + (w2 += sigma1(w0) + w11 + sigma0(w3)));
233 299650 : Round(f, g, h, a, b, c, d, e, 0x53380d13ul + (w3 += sigma1(w1) + w12 + sigma0(w4)));
234 299650 : Round(e, f, g, h, a, b, c, d, 0x650a7354ul + (w4 += sigma1(w2) + w13 + sigma0(w5)));
235 299650 : Round(d, e, f, g, h, a, b, c, 0x766a0abbul + (w5 += sigma1(w3) + w14 + sigma0(w6)));
236 299650 : Round(c, d, e, f, g, h, a, b, 0x81c2c92eul + (w6 += sigma1(w4) + w15 + sigma0(w7)));
237 299650 : Round(b, c, d, e, f, g, h, a, 0x92722c85ul + (w7 += sigma1(w5) + w0 + sigma0(w8)));
238 299650 : Round(a, b, c, d, e, f, g, h, 0xa2bfe8a1ul + (w8 += sigma1(w6) + w1 + sigma0(w9)));
239 299650 : Round(h, a, b, c, d, e, f, g, 0xa81a664bul + (w9 += sigma1(w7) + w2 + sigma0(w10)));
240 299650 : Round(g, h, a, b, c, d, e, f, 0xc24b8b70ul + (w10 += sigma1(w8) + w3 + sigma0(w11)));
241 299650 : Round(f, g, h, a, b, c, d, e, 0xc76c51a3ul + (w11 += sigma1(w9) + w4 + sigma0(w12)));
242 299650 : Round(e, f, g, h, a, b, c, d, 0xd192e819ul + (w12 += sigma1(w10) + w5 + sigma0(w13)));
243 299650 : Round(d, e, f, g, h, a, b, c, 0xd6990624ul + (w13 += sigma1(w11) + w6 + sigma0(w14)));
244 299650 : Round(c, d, e, f, g, h, a, b, 0xf40e3585ul + (w14 += sigma1(w12) + w7 + sigma0(w15)));
245 299650 : Round(b, c, d, e, f, g, h, a, 0x106aa070ul + (w15 += sigma1(w13) + w8 + sigma0(w0)));
246 299650 : Round(a, b, c, d, e, f, g, h, 0x19a4c116ul + (w0 += sigma1(w14) + w9 + sigma0(w1)));
247 299650 : Round(h, a, b, c, d, e, f, g, 0x1e376c08ul + (w1 += sigma1(w15) + w10 + sigma0(w2)));
248 299650 : Round(g, h, a, b, c, d, e, f, 0x2748774cul + (w2 += sigma1(w0) + w11 + sigma0(w3)));
249 299650 : Round(f, g, h, a, b, c, d, e, 0x34b0bcb5ul + (w3 += sigma1(w1) + w12 + sigma0(w4)));
250 299650 : Round(e, f, g, h, a, b, c, d, 0x391c0cb3ul + (w4 += sigma1(w2) + w13 + sigma0(w5)));
251 299650 : Round(d, e, f, g, h, a, b, c, 0x4ed8aa4aul + (w5 += sigma1(w3) + w14 + sigma0(w6)));
252 299650 : Round(c, d, e, f, g, h, a, b, 0x5b9cca4ful + (w6 += sigma1(w4) + w15 + sigma0(w7)));
253 299650 : Round(b, c, d, e, f, g, h, a, 0x682e6ff3ul + (w7 += sigma1(w5) + w0 + sigma0(w8)));
254 299650 : Round(a, b, c, d, e, f, g, h, 0x748f82eeul + (w8 += sigma1(w6) + w1 + sigma0(w9)));
255 299650 : Round(h, a, b, c, d, e, f, g, 0x78a5636ful + (w9 += sigma1(w7) + w2 + sigma0(w10)));
256 299650 : Round(g, h, a, b, c, d, e, f, 0x84c87814ul + (w10 += sigma1(w8) + w3 + sigma0(w11)));
257 299650 : Round(f, g, h, a, b, c, d, e, 0x8cc70208ul + (w11 += sigma1(w9) + w4 + sigma0(w12)));
258 299650 : Round(e, f, g, h, a, b, c, d, 0x90befffaul + (w12 += sigma1(w10) + w5 + sigma0(w13)));
259 299650 : Round(d, e, f, g, h, a, b, c, 0xa4506cebul + (w13 += sigma1(w11) + w6 + sigma0(w14)));
260 299650 : Round(c, d, e, f, g, h, a, b, 0xbef9a3f7ul + (w14 + sigma1(w12) + w7 + sigma0(w15)));
261 299650 : Round(b, c, d, e, f, g, h, a, 0xc67178f2ul + (w15 + sigma1(w13) + w8 + sigma0(w0)));
262 :
263 299650 : a += 0x6a09e667ul;
264 299650 : b += 0xbb67ae85ul;
265 299650 : c += 0x3c6ef372ul;
266 299650 : d += 0xa54ff53aul;
267 299650 : e += 0x510e527ful;
268 299650 : f += 0x9b05688cul;
269 299650 : g += 0x1f83d9abul;
270 299650 : h += 0x5be0cd19ul;
271 :
272 299650 : uint32_t t0 = a, t1 = b, t2 = c, t3 = d, t4 = e, t5 = f, t6 = g, t7 = h;
273 :
274 : // Transform 2
275 299650 : Round(a, b, c, d, e, f, g, h, 0xc28a2f98ul);
276 299650 : Round(h, a, b, c, d, e, f, g, 0x71374491ul);
277 299650 : Round(g, h, a, b, c, d, e, f, 0xb5c0fbcful);
278 299650 : Round(f, g, h, a, b, c, d, e, 0xe9b5dba5ul);
279 299650 : Round(e, f, g, h, a, b, c, d, 0x3956c25bul);
280 299650 : Round(d, e, f, g, h, a, b, c, 0x59f111f1ul);
281 299650 : Round(c, d, e, f, g, h, a, b, 0x923f82a4ul);
282 299650 : Round(b, c, d, e, f, g, h, a, 0xab1c5ed5ul);
283 299650 : Round(a, b, c, d, e, f, g, h, 0xd807aa98ul);
284 299650 : Round(h, a, b, c, d, e, f, g, 0x12835b01ul);
285 299650 : Round(g, h, a, b, c, d, e, f, 0x243185beul);
286 299650 : Round(f, g, h, a, b, c, d, e, 0x550c7dc3ul);
287 299650 : Round(e, f, g, h, a, b, c, d, 0x72be5d74ul);
288 299650 : Round(d, e, f, g, h, a, b, c, 0x80deb1feul);
289 299650 : Round(c, d, e, f, g, h, a, b, 0x9bdc06a7ul);
290 299650 : Round(b, c, d, e, f, g, h, a, 0xc19bf374ul);
291 299650 : Round(a, b, c, d, e, f, g, h, 0x649b69c1ul);
292 299650 : Round(h, a, b, c, d, e, f, g, 0xf0fe4786ul);
293 299650 : Round(g, h, a, b, c, d, e, f, 0x0fe1edc6ul);
294 299650 : Round(f, g, h, a, b, c, d, e, 0x240cf254ul);
295 299650 : Round(e, f, g, h, a, b, c, d, 0x4fe9346ful);
296 299650 : Round(d, e, f, g, h, a, b, c, 0x6cc984beul);
297 299650 : Round(c, d, e, f, g, h, a, b, 0x61b9411eul);
298 299650 : Round(b, c, d, e, f, g, h, a, 0x16f988faul);
299 299650 : Round(a, b, c, d, e, f, g, h, 0xf2c65152ul);
300 299650 : Round(h, a, b, c, d, e, f, g, 0xa88e5a6dul);
301 299650 : Round(g, h, a, b, c, d, e, f, 0xb019fc65ul);
302 299650 : Round(f, g, h, a, b, c, d, e, 0xb9d99ec7ul);
303 299650 : Round(e, f, g, h, a, b, c, d, 0x9a1231c3ul);
304 299650 : Round(d, e, f, g, h, a, b, c, 0xe70eeaa0ul);
305 299650 : Round(c, d, e, f, g, h, a, b, 0xfdb1232bul);
306 299650 : Round(b, c, d, e, f, g, h, a, 0xc7353eb0ul);
307 299650 : Round(a, b, c, d, e, f, g, h, 0x3069bad5ul);
308 299650 : Round(h, a, b, c, d, e, f, g, 0xcb976d5ful);
309 299650 : Round(g, h, a, b, c, d, e, f, 0x5a0f118ful);
310 299650 : Round(f, g, h, a, b, c, d, e, 0xdc1eeefdul);
311 299650 : Round(e, f, g, h, a, b, c, d, 0x0a35b689ul);
312 299650 : Round(d, e, f, g, h, a, b, c, 0xde0b7a04ul);
313 299650 : Round(c, d, e, f, g, h, a, b, 0x58f4ca9dul);
314 299650 : Round(b, c, d, e, f, g, h, a, 0xe15d5b16ul);
315 299650 : Round(a, b, c, d, e, f, g, h, 0x007f3e86ul);
316 299650 : Round(h, a, b, c, d, e, f, g, 0x37088980ul);
317 299650 : Round(g, h, a, b, c, d, e, f, 0xa507ea32ul);
318 299650 : Round(f, g, h, a, b, c, d, e, 0x6fab9537ul);
319 299650 : Round(e, f, g, h, a, b, c, d, 0x17406110ul);
320 299650 : Round(d, e, f, g, h, a, b, c, 0x0d8cd6f1ul);
321 299650 : Round(c, d, e, f, g, h, a, b, 0xcdaa3b6dul);
322 299650 : Round(b, c, d, e, f, g, h, a, 0xc0bbbe37ul);
323 299650 : Round(a, b, c, d, e, f, g, h, 0x83613bdaul);
324 299650 : Round(h, a, b, c, d, e, f, g, 0xdb48a363ul);
325 299650 : Round(g, h, a, b, c, d, e, f, 0x0b02e931ul);
326 299650 : Round(f, g, h, a, b, c, d, e, 0x6fd15ca7ul);
327 299650 : Round(e, f, g, h, a, b, c, d, 0x521afacaul);
328 299650 : Round(d, e, f, g, h, a, b, c, 0x31338431ul);
329 299650 : Round(c, d, e, f, g, h, a, b, 0x6ed41a95ul);
330 299650 : Round(b, c, d, e, f, g, h, a, 0x6d437890ul);
331 299650 : Round(a, b, c, d, e, f, g, h, 0xc39c91f2ul);
332 299650 : Round(h, a, b, c, d, e, f, g, 0x9eccabbdul);
333 299650 : Round(g, h, a, b, c, d, e, f, 0xb5c9a0e6ul);
334 299650 : Round(f, g, h, a, b, c, d, e, 0x532fb63cul);
335 299650 : Round(e, f, g, h, a, b, c, d, 0xd2c741c6ul);
336 299650 : Round(d, e, f, g, h, a, b, c, 0x07237ea3ul);
337 299650 : Round(c, d, e, f, g, h, a, b, 0xa4954b68ul);
338 299650 : Round(b, c, d, e, f, g, h, a, 0x4c191d76ul);
339 :
340 299650 : w0 = t0 + a;
341 299650 : w1 = t1 + b;
342 299650 : w2 = t2 + c;
343 299650 : w3 = t3 + d;
344 299650 : w4 = t4 + e;
345 299650 : w5 = t5 + f;
346 299650 : w6 = t6 + g;
347 299650 : w7 = t7 + h;
348 :
349 : // Transform 3
350 299650 : a = 0x6a09e667ul;
351 299650 : b = 0xbb67ae85ul;
352 299650 : c = 0x3c6ef372ul;
353 299650 : d = 0xa54ff53aul;
354 299650 : e = 0x510e527ful;
355 299650 : f = 0x9b05688cul;
356 299650 : g = 0x1f83d9abul;
357 299650 : h = 0x5be0cd19ul;
358 :
359 299650 : Round(a, b, c, d, e, f, g, h, 0x428a2f98ul + w0);
360 299650 : Round(h, a, b, c, d, e, f, g, 0x71374491ul + w1);
361 299650 : Round(g, h, a, b, c, d, e, f, 0xb5c0fbcful + w2);
362 299650 : Round(f, g, h, a, b, c, d, e, 0xe9b5dba5ul + w3);
363 299650 : Round(e, f, g, h, a, b, c, d, 0x3956c25bul + w4);
364 299650 : Round(d, e, f, g, h, a, b, c, 0x59f111f1ul + w5);
365 299650 : Round(c, d, e, f, g, h, a, b, 0x923f82a4ul + w6);
366 299650 : Round(b, c, d, e, f, g, h, a, 0xab1c5ed5ul + w7);
367 299650 : Round(a, b, c, d, e, f, g, h, 0x5807aa98ul);
368 299650 : Round(h, a, b, c, d, e, f, g, 0x12835b01ul);
369 299650 : Round(g, h, a, b, c, d, e, f, 0x243185beul);
370 299650 : Round(f, g, h, a, b, c, d, e, 0x550c7dc3ul);
371 299650 : Round(e, f, g, h, a, b, c, d, 0x72be5d74ul);
372 299650 : Round(d, e, f, g, h, a, b, c, 0x80deb1feul);
373 299650 : Round(c, d, e, f, g, h, a, b, 0x9bdc06a7ul);
374 299650 : Round(b, c, d, e, f, g, h, a, 0xc19bf274ul);
375 299650 : Round(a, b, c, d, e, f, g, h, 0xe49b69c1ul + (w0 += sigma0(w1)));
376 299650 : Round(h, a, b, c, d, e, f, g, 0xefbe4786ul + (w1 += 0xa00000ul + sigma0(w2)));
377 299650 : Round(g, h, a, b, c, d, e, f, 0x0fc19dc6ul + (w2 += sigma1(w0) + sigma0(w3)));
378 299650 : Round(f, g, h, a, b, c, d, e, 0x240ca1ccul + (w3 += sigma1(w1) + sigma0(w4)));
379 299650 : Round(e, f, g, h, a, b, c, d, 0x2de92c6ful + (w4 += sigma1(w2) + sigma0(w5)));
380 299650 : Round(d, e, f, g, h, a, b, c, 0x4a7484aaul + (w5 += sigma1(w3) + sigma0(w6)));
381 299650 : Round(c, d, e, f, g, h, a, b, 0x5cb0a9dcul + (w6 += sigma1(w4) + 0x100ul + sigma0(w7)));
382 299650 : Round(b, c, d, e, f, g, h, a, 0x76f988daul + (w7 += sigma1(w5) + w0 + 0x11002000ul));
383 299650 : Round(a, b, c, d, e, f, g, h, 0x983e5152ul + (w8 = 0x80000000ul + sigma1(w6) + w1));
384 299650 : Round(h, a, b, c, d, e, f, g, 0xa831c66dul + (w9 = sigma1(w7) + w2));
385 299650 : Round(g, h, a, b, c, d, e, f, 0xb00327c8ul + (w10 = sigma1(w8) + w3));
386 299650 : Round(f, g, h, a, b, c, d, e, 0xbf597fc7ul + (w11 = sigma1(w9) + w4));
387 299650 : Round(e, f, g, h, a, b, c, d, 0xc6e00bf3ul + (w12 = sigma1(w10) + w5));
388 299650 : Round(d, e, f, g, h, a, b, c, 0xd5a79147ul + (w13 = sigma1(w11) + w6));
389 299650 : Round(c, d, e, f, g, h, a, b, 0x06ca6351ul + (w14 = sigma1(w12) + w7 + 0x400022ul));
390 299650 : Round(b, c, d, e, f, g, h, a, 0x14292967ul + (w15 = 0x100ul + sigma1(w13) + w8 + sigma0(w0)));
391 299650 : Round(a, b, c, d, e, f, g, h, 0x27b70a85ul + (w0 += sigma1(w14) + w9 + sigma0(w1)));
392 299650 : Round(h, a, b, c, d, e, f, g, 0x2e1b2138ul + (w1 += sigma1(w15) + w10 + sigma0(w2)));
393 299650 : Round(g, h, a, b, c, d, e, f, 0x4d2c6dfcul + (w2 += sigma1(w0) + w11 + sigma0(w3)));
394 299650 : Round(f, g, h, a, b, c, d, e, 0x53380d13ul + (w3 += sigma1(w1) + w12 + sigma0(w4)));
395 299650 : Round(e, f, g, h, a, b, c, d, 0x650a7354ul + (w4 += sigma1(w2) + w13 + sigma0(w5)));
396 299650 : Round(d, e, f, g, h, a, b, c, 0x766a0abbul + (w5 += sigma1(w3) + w14 + sigma0(w6)));
397 299650 : Round(c, d, e, f, g, h, a, b, 0x81c2c92eul + (w6 += sigma1(w4) + w15 + sigma0(w7)));
398 299650 : Round(b, c, d, e, f, g, h, a, 0x92722c85ul + (w7 += sigma1(w5) + w0 + sigma0(w8)));
399 299650 : Round(a, b, c, d, e, f, g, h, 0xa2bfe8a1ul + (w8 += sigma1(w6) + w1 + sigma0(w9)));
400 299650 : Round(h, a, b, c, d, e, f, g, 0xa81a664bul + (w9 += sigma1(w7) + w2 + sigma0(w10)));
401 299650 : Round(g, h, a, b, c, d, e, f, 0xc24b8b70ul + (w10 += sigma1(w8) + w3 + sigma0(w11)));
402 299650 : Round(f, g, h, a, b, c, d, e, 0xc76c51a3ul + (w11 += sigma1(w9) + w4 + sigma0(w12)));
403 299650 : Round(e, f, g, h, a, b, c, d, 0xd192e819ul + (w12 += sigma1(w10) + w5 + sigma0(w13)));
404 299650 : Round(d, e, f, g, h, a, b, c, 0xd6990624ul + (w13 += sigma1(w11) + w6 + sigma0(w14)));
405 299650 : Round(c, d, e, f, g, h, a, b, 0xf40e3585ul + (w14 += sigma1(w12) + w7 + sigma0(w15)));
406 299650 : Round(b, c, d, e, f, g, h, a, 0x106aa070ul + (w15 += sigma1(w13) + w8 + sigma0(w0)));
407 299650 : Round(a, b, c, d, e, f, g, h, 0x19a4c116ul + (w0 += sigma1(w14) + w9 + sigma0(w1)));
408 299650 : Round(h, a, b, c, d, e, f, g, 0x1e376c08ul + (w1 += sigma1(w15) + w10 + sigma0(w2)));
409 299650 : Round(g, h, a, b, c, d, e, f, 0x2748774cul + (w2 += sigma1(w0) + w11 + sigma0(w3)));
410 299650 : Round(f, g, h, a, b, c, d, e, 0x34b0bcb5ul + (w3 += sigma1(w1) + w12 + sigma0(w4)));
411 299650 : Round(e, f, g, h, a, b, c, d, 0x391c0cb3ul + (w4 += sigma1(w2) + w13 + sigma0(w5)));
412 299650 : Round(d, e, f, g, h, a, b, c, 0x4ed8aa4aul + (w5 += sigma1(w3) + w14 + sigma0(w6)));
413 299650 : Round(c, d, e, f, g, h, a, b, 0x5b9cca4ful + (w6 += sigma1(w4) + w15 + sigma0(w7)));
414 299650 : Round(b, c, d, e, f, g, h, a, 0x682e6ff3ul + (w7 += sigma1(w5) + w0 + sigma0(w8)));
415 299650 : Round(a, b, c, d, e, f, g, h, 0x748f82eeul + (w8 += sigma1(w6) + w1 + sigma0(w9)));
416 299650 : Round(h, a, b, c, d, e, f, g, 0x78a5636ful + (w9 += sigma1(w7) + w2 + sigma0(w10)));
417 299650 : Round(g, h, a, b, c, d, e, f, 0x84c87814ul + (w10 += sigma1(w8) + w3 + sigma0(w11)));
418 299650 : Round(f, g, h, a, b, c, d, e, 0x8cc70208ul + (w11 += sigma1(w9) + w4 + sigma0(w12)));
419 299650 : Round(e, f, g, h, a, b, c, d, 0x90befffaul + (w12 += sigma1(w10) + w5 + sigma0(w13)));
420 299650 : Round(d, e, f, g, h, a, b, c, 0xa4506cebul + (w13 += sigma1(w11) + w6 + sigma0(w14)));
421 299650 : Round(c, d, e, f, g, h, a, b, 0xbef9a3f7ul + (w14 + sigma1(w12) + w7 + sigma0(w15)));
422 299650 : Round(b, c, d, e, f, g, h, a, 0xc67178f2ul + (w15 + sigma1(w13) + w8 + sigma0(w0)));
423 :
424 : // Output
425 299650 : WriteBE32(out + 0, a + 0x6a09e667ul);
426 299650 : WriteBE32(out + 4, b + 0xbb67ae85ul);
427 299650 : WriteBE32(out + 8, c + 0x3c6ef372ul);
428 299650 : WriteBE32(out + 12, d + 0xa54ff53aul);
429 299650 : WriteBE32(out + 16, e + 0x510e527ful);
430 299650 : WriteBE32(out + 20, f + 0x9b05688cul);
431 299650 : WriteBE32(out + 24, g + 0x1f83d9abul);
432 299650 : WriteBE32(out + 28, h + 0x5be0cd19ul);
433 299650 : }
434 :
435 : } // namespace sha256
436 :
437 : typedef void (*TransformType)(uint32_t*, const unsigned char*, size_t);
438 : typedef void (*TransformD64Type)(unsigned char*, const unsigned char*);
439 :
440 : template<TransformType tr>
441 : void TransformD64Wrapper(unsigned char* out, const unsigned char* in)
442 : {
443 : uint32_t s[8];
444 : static const unsigned char padding1[64] = {
445 : 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
446 : 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
447 : 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
448 : 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0
449 : };
450 : unsigned char buffer2[64] = {
451 : 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
452 : 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
453 : 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
454 : 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0
455 : };
456 : sha256::Initialize(s);
457 : tr(s, in, 1);
458 : tr(s, padding1, 1);
459 : WriteBE32(buffer2 + 0, s[0]);
460 : WriteBE32(buffer2 + 4, s[1]);
461 : WriteBE32(buffer2 + 8, s[2]);
462 : WriteBE32(buffer2 + 12, s[3]);
463 : WriteBE32(buffer2 + 16, s[4]);
464 : WriteBE32(buffer2 + 20, s[5]);
465 : WriteBE32(buffer2 + 24, s[6]);
466 : WriteBE32(buffer2 + 28, s[7]);
467 : sha256::Initialize(s);
468 : tr(s, buffer2, 1);
469 : WriteBE32(out + 0, s[0]);
470 : WriteBE32(out + 4, s[1]);
471 : WriteBE32(out + 8, s[2]);
472 : WriteBE32(out + 12, s[3]);
473 : WriteBE32(out + 16, s[4]);
474 : WriteBE32(out + 20, s[5]);
475 : WriteBE32(out + 24, s[6]);
476 : WriteBE32(out + 28, s[7]);
477 : }
478 :
479 : TransformType Transform = sha256::Transform;
480 : TransformD64Type TransformD64 = sha256::TransformD64;
481 : TransformD64Type TransformD64_2way = nullptr;
482 : TransformD64Type TransformD64_4way = nullptr;
483 : TransformD64Type TransformD64_8way = nullptr;
484 :
485 627 : bool SelfTest() {
486 : // Input state (equal to the initial SHA256 state)
487 : static const uint32_t init[8] = {
488 : 0x6a09e667ul, 0xbb67ae85ul, 0x3c6ef372ul, 0xa54ff53aul, 0x510e527ful, 0x9b05688cul, 0x1f83d9abul, 0x5be0cd19ul
489 : };
490 : // Some random input data to test with
491 : static const unsigned char data[641] = "-" // Intentionally not aligned
492 : "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do "
493 : "eiusmod tempor incididunt ut labore et dolore magna aliqua. Et m"
494 : "olestie ac feugiat sed lectus vestibulum mattis ullamcorper. Mor"
495 : "bi blandit cursus risus at ultrices mi tempus imperdiet nulla. N"
496 : "unc congue nisi vita suscipit tellus mauris. Imperdiet proin fer"
497 : "mentum leo vel orci. Massa tempor nec feugiat nisl pretium fusce"
498 : " id velit. Telus in metus vulputate eu scelerisque felis. Mi tem"
499 : "pus imperdiet nulla malesuada pellentesque. Tristique magna sit.";
500 : // Expected output state for hashing the i*64 first input bytes above (excluding SHA256 padding).
501 : static const uint32_t result[9][8] = {
502 : {0x6a09e667ul, 0xbb67ae85ul, 0x3c6ef372ul, 0xa54ff53aul, 0x510e527ful, 0x9b05688cul, 0x1f83d9abul, 0x5be0cd19ul},
503 : {0x91f8ec6bul, 0x4da10fe3ul, 0x1c9c292cul, 0x45e18185ul, 0x435cc111ul, 0x3ca26f09ul, 0xeb954caeul, 0x402a7069ul},
504 : {0xcabea5acul, 0x374fb97cul, 0x182ad996ul, 0x7bd69cbful, 0x450ff900ul, 0xc1d2be8aul, 0x6a41d505ul, 0xe6212dc3ul},
505 : {0xbcff09d6ul, 0x3e76f36eul, 0x3ecb2501ul, 0x78866e97ul, 0xe1c1e2fdul, 0x32f4eafful, 0x8aa6c4e5ul, 0xdfc024bcul},
506 : {0xa08c5d94ul, 0x0a862f93ul, 0x6b7f2f40ul, 0x8f9fae76ul, 0x6d40439ful, 0x79dcee0cul, 0x3e39ff3aul, 0xdc3bdbb1ul},
507 : {0x216a0895ul, 0x9f1a3662ul, 0xe99946f9ul, 0x87ba4364ul, 0x0fb5db2cul, 0x12bed3d3ul, 0x6689c0c7ul, 0x292f1b04ul},
508 : {0xca3067f8ul, 0xbc8c2656ul, 0x37cb7e0dul, 0x9b6b8b0ful, 0x46dc380bul, 0xf1287f57ul, 0xc42e4b23ul, 0x3fefe94dul},
509 : {0x3e4c4039ul, 0xbb6fca8cul, 0x6f27d2f7ul, 0x301e44a4ul, 0x8352ba14ul, 0x5769ce37ul, 0x48a1155ful, 0xc0e1c4c6ul},
510 : {0xfe2fa9ddul, 0x69d0862bul, 0x1ae0db23ul, 0x471f9244ul, 0xf55c0145ul, 0xc30f9c3bul, 0x40a84ea0ul, 0x5b8a266cul},
511 : };
512 : // Expected output for each of the individual 8 64-byte messages under full double SHA256 (including padding).
513 : static const unsigned char result_d64[256] = {
514 : 0x09, 0x3a, 0xc4, 0xd0, 0x0f, 0xf7, 0x57, 0xe1, 0x72, 0x85, 0x79, 0x42, 0xfe, 0xe7, 0xe0, 0xa0,
515 : 0xfc, 0x52, 0xd7, 0xdb, 0x07, 0x63, 0x45, 0xfb, 0x53, 0x14, 0x7d, 0x17, 0x22, 0x86, 0xf0, 0x52,
516 : 0x48, 0xb6, 0x11, 0x9e, 0x6e, 0x48, 0x81, 0x6d, 0xcc, 0x57, 0x1f, 0xb2, 0x97, 0xa8, 0xd5, 0x25,
517 : 0x9b, 0x82, 0xaa, 0x89, 0xe2, 0xfd, 0x2d, 0x56, 0xe8, 0x28, 0x83, 0x0b, 0xe2, 0xfa, 0x53, 0xb7,
518 : 0xd6, 0x6b, 0x07, 0x85, 0x83, 0xb0, 0x10, 0xa2, 0xf5, 0x51, 0x3c, 0xf9, 0x60, 0x03, 0xab, 0x45,
519 : 0x6c, 0x15, 0x6e, 0xef, 0xb5, 0xac, 0x3e, 0x6c, 0xdf, 0xb4, 0x92, 0x22, 0x2d, 0xce, 0xbf, 0x3e,
520 : 0xe9, 0xe5, 0xf6, 0x29, 0x0e, 0x01, 0x4f, 0xd2, 0xd4, 0x45, 0x65, 0xb3, 0xbb, 0xf2, 0x4c, 0x16,
521 : 0x37, 0x50, 0x3c, 0x6e, 0x49, 0x8c, 0x5a, 0x89, 0x2b, 0x1b, 0xab, 0xc4, 0x37, 0xd1, 0x46, 0xe9,
522 : 0x3d, 0x0e, 0x85, 0xa2, 0x50, 0x73, 0xa1, 0x5e, 0x54, 0x37, 0xd7, 0x94, 0x17, 0x56, 0xc2, 0xd8,
523 : 0xe5, 0x9f, 0xed, 0x4e, 0xae, 0x15, 0x42, 0x06, 0x0d, 0x74, 0x74, 0x5e, 0x24, 0x30, 0xce, 0xd1,
524 : 0x9e, 0x50, 0xa3, 0x9a, 0xb8, 0xf0, 0x4a, 0x57, 0x69, 0x78, 0x67, 0x12, 0x84, 0x58, 0xbe, 0xc7,
525 : 0x36, 0xaa, 0xee, 0x7c, 0x64, 0xa3, 0x76, 0xec, 0xff, 0x55, 0x41, 0x00, 0x2a, 0x44, 0x68, 0x4d,
526 : 0xb6, 0x53, 0x9e, 0x1c, 0x95, 0xb7, 0xca, 0xdc, 0x7f, 0x7d, 0x74, 0x27, 0x5c, 0x8e, 0xa6, 0x84,
527 : 0xb5, 0xac, 0x87, 0xa9, 0xf3, 0xff, 0x75, 0xf2, 0x34, 0xcd, 0x1a, 0x3b, 0x82, 0x2c, 0x2b, 0x4e,
528 : 0x6a, 0x46, 0x30, 0xa6, 0x89, 0x86, 0x23, 0xac, 0xf8, 0xa5, 0x15, 0xe9, 0x0a, 0xaa, 0x1e, 0x9a,
529 : 0xd7, 0x93, 0x6b, 0x28, 0xe4, 0x3b, 0xfd, 0x59, 0xc6, 0xed, 0x7c, 0x5f, 0xa5, 0x41, 0xcb, 0x51
530 : };
531 :
532 :
533 : // Test Transform() for 0 through 8 transformations.
534 6270 : for (size_t i = 0; i <= 8; ++i) {
535 : uint32_t state[8];
536 5643 : std::copy(init, init + 8, state);
537 5643 : Transform(state, data + 1, i);
538 5643 : if (!std::equal(state, state + 8, result[i])) return false;
539 5643 : }
540 :
541 : // Test TransformD64
542 : unsigned char out[32];
543 627 : TransformD64(out, data + 1);
544 627 : if (!std::equal(out, out + 32, result_d64)) return false;
545 :
546 : // Test TransformD64_2way, if available.
547 627 : if (TransformD64_2way) {
548 : unsigned char out[64];
549 0 : TransformD64_2way(out, data + 1);
550 0 : if (!std::equal(out, out + 64, result_d64)) return false;
551 0 : }
552 :
553 : // Test TransformD64_4way, if available.
554 627 : if (TransformD64_4way) {
555 : unsigned char out[128];
556 0 : TransformD64_4way(out, data + 1);
557 0 : if (!std::equal(out, out + 128, result_d64)) return false;
558 0 : }
559 :
560 : // Test TransformD64_8way, if available.
561 627 : if (TransformD64_8way) {
562 : unsigned char out[256];
563 0 : TransformD64_8way(out, data + 1);
564 0 : if (!std::equal(out, out + 256, result_d64)) return false;
565 0 : }
566 :
567 627 : return true;
568 627 : }
569 :
570 : #if !defined(DISABLE_OPTIMIZED_SHA256)
571 : #if (defined(__x86_64__) || defined(__amd64__) || defined(__i386__))
572 : /** Check whether the OS has enabled AVX registers. */
573 : bool AVXEnabled()
574 : {
575 : uint32_t a, d;
576 : __asm__("xgetbv" : "=a"(a), "=d"(d) : "c"(0));
577 : return (a & 6) == 6;
578 : }
579 : #endif
580 : #endif // DISABLE_OPTIMIZED_SHA256
581 : } // namespace
582 :
583 :
584 627 : std::string SHA256AutoDetect(sha256_implementation::UseImplementation use_implementation)
585 : {
586 627 : std::string ret = "standard";
587 627 : Transform = sha256::Transform;
588 627 : TransformD64 = sha256::TransformD64;
589 627 : TransformD64_2way = nullptr;
590 627 : TransformD64_4way = nullptr;
591 627 : TransformD64_8way = nullptr;
592 :
593 : #if !defined(DISABLE_OPTIMIZED_SHA256)
594 : #if defined(HAVE_GETCPUID)
595 : bool have_sse4 = false;
596 : bool have_xsave = false;
597 : bool have_avx = false;
598 : [[maybe_unused]] bool have_avx2 = false;
599 : [[maybe_unused]] bool have_x86_shani = false;
600 : [[maybe_unused]] bool enabled_avx = false;
601 :
602 : uint32_t eax, ebx, ecx, edx;
603 : GetCPUID(1, 0, eax, ebx, ecx, edx);
604 : if (use_implementation & sha256_implementation::USE_SSE4) {
605 : have_sse4 = (ecx >> 19) & 1;
606 : }
607 : have_xsave = (ecx >> 27) & 1;
608 : have_avx = (ecx >> 28) & 1;
609 : if (have_xsave && have_avx) {
610 : enabled_avx = AVXEnabled();
611 : }
612 : if (have_sse4) {
613 : GetCPUID(7, 0, eax, ebx, ecx, edx);
614 : if (use_implementation & sha256_implementation::USE_AVX2) {
615 : have_avx2 = (ebx >> 5) & 1;
616 : }
617 : if (use_implementation & sha256_implementation::USE_SHANI) {
618 : have_x86_shani = (ebx >> 29) & 1;
619 : }
620 : }
621 :
622 : #if defined(ENABLE_SSE41) && defined(ENABLE_X86_SHANI)
623 : if (have_x86_shani) {
624 : Transform = sha256_x86_shani::Transform;
625 : TransformD64 = TransformD64Wrapper<sha256_x86_shani::Transform>;
626 : TransformD64_2way = sha256d64_x86_shani::Transform_2way;
627 : ret = "x86_shani(1way,2way)";
628 : have_sse4 = false; // Disable SSE4/AVX2;
629 : have_avx2 = false;
630 : }
631 : #endif
632 :
633 : if (have_sse4) {
634 : #if defined(__x86_64__) || defined(__amd64__)
635 : Transform = sha256_sse4::Transform;
636 : TransformD64 = TransformD64Wrapper<sha256_sse4::Transform>;
637 : ret = "sse4(1way)";
638 : #endif
639 : #if defined(ENABLE_SSE41)
640 : TransformD64_4way = sha256d64_sse41::Transform_4way;
641 : ret += ",sse41(4way)";
642 : #endif
643 : }
644 :
645 : #if defined(ENABLE_AVX2)
646 : if (have_avx2 && have_avx && enabled_avx) {
647 : TransformD64_8way = sha256d64_avx2::Transform_8way;
648 : ret += ",avx2(8way)";
649 : }
650 : #endif
651 : #endif // defined(HAVE_GETCPUID)
652 :
653 : #if defined(ENABLE_ARM_SHANI)
654 : bool have_arm_shani = false;
655 : if (use_implementation & sha256_implementation::USE_SHANI) {
656 : #if defined(__linux__)
657 : #if defined(__arm__) // 32-bit
658 : if (getauxval(AT_HWCAP2) & HWCAP2_SHA2) {
659 : have_arm_shani = true;
660 : }
661 : #endif
662 : #if defined(__aarch64__) // 64-bit
663 : if (getauxval(AT_HWCAP) & HWCAP_SHA2) {
664 : have_arm_shani = true;
665 : }
666 : #endif
667 : #endif
668 :
669 : #if defined(__APPLE__)
670 : int val = 0;
671 : size_t len = sizeof(val);
672 : if (sysctlbyname("hw.optional.arm.FEAT_SHA256", &val, &len, nullptr, 0) == 0) {
673 : have_arm_shani = val != 0;
674 : }
675 : #endif
676 : }
677 :
678 : if (have_arm_shani) {
679 : Transform = sha256_arm_shani::Transform;
680 : TransformD64 = TransformD64Wrapper<sha256_arm_shani::Transform>;
681 : TransformD64_2way = sha256d64_arm_shani::Transform_2way;
682 : ret = "arm_shani(1way,2way)";
683 : }
684 : #endif
685 : #endif // DISABLE_OPTIMIZED_SHA256
686 :
687 627 : assert(SelfTest());
688 627 : return ret;
689 627 : }
690 :
691 : ////// SHA-256
692 :
693 5198540 : CSHA256::CSHA256()
694 2599269 : {
695 : sha256::Initialize(s);
696 2599269 : }
697 :
698 34218287 : CSHA256& CSHA256::Write(const unsigned char* data, size_t len)
699 : {
700 34218287 : const unsigned char* end = data + len;
701 34218287 : size_t bufsize = bytes % 64;
702 34218287 : if (bufsize && bufsize + len >= 64) {
703 : // Fill the buffer, and process it.
704 7880438 : memcpy(buf + bufsize, data, 64 - bufsize);
705 7880438 : bytes += 64 - bufsize;
706 7880438 : data += 64 - bufsize;
707 7880438 : Transform(s, buf, 1);
708 7880438 : bufsize = 0;
709 7880438 : }
710 34218287 : if (end - data >= 64) {
711 336964 : size_t blocks = (end - data) / 64;
712 336964 : Transform(s, data, blocks);
713 336964 : data += 64 * blocks;
714 336964 : bytes += 64 * blocks;
715 336964 : }
716 34218287 : if (end > data) {
717 : // Fill the buffer with what remains.
718 27480924 : memcpy(buf + bufsize, data, end - data);
719 27480924 : bytes += end - data;
720 27480924 : }
721 34218287 : return *this;
722 : }
723 :
724 4921983 : void CSHA256::Finalize(unsigned char hash[OUTPUT_SIZE])
725 : {
726 : static const unsigned char pad[64] = {0x80};
727 : unsigned char sizedesc[8];
728 4921983 : WriteBE64(sizedesc, bytes << 3);
729 4921983 : Write(pad, 1 + ((119 - (bytes % 64)) % 64));
730 4921983 : Write(sizedesc, 8);
731 4921983 : WriteBE32(hash, s[0]);
732 4921983 : WriteBE32(hash + 4, s[1]);
733 4921983 : WriteBE32(hash + 8, s[2]);
734 4921983 : WriteBE32(hash + 12, s[3]);
735 4921983 : WriteBE32(hash + 16, s[4]);
736 4921983 : WriteBE32(hash + 20, s[5]);
737 4921983 : WriteBE32(hash + 24, s[6]);
738 4921983 : WriteBE32(hash + 28, s[7]);
739 4921983 : }
740 :
741 2172901 : CSHA256& CSHA256::Reset()
742 : {
743 2172901 : bytes = 0;
744 2172901 : sha256::Initialize(s);
745 2172901 : return *this;
746 : }
747 :
748 23819 : void SHA256D64(unsigned char* out, const unsigned char* in, size_t blocks)
749 : {
750 23819 : if (TransformD64_8way) {
751 0 : while (blocks >= 8) {
752 0 : TransformD64_8way(out, in);
753 0 : out += 256;
754 0 : in += 512;
755 0 : blocks -= 8;
756 : }
757 0 : }
758 23819 : if (TransformD64_4way) {
759 0 : while (blocks >= 4) {
760 0 : TransformD64_4way(out, in);
761 0 : out += 128;
762 0 : in += 256;
763 0 : blocks -= 4;
764 : }
765 0 : }
766 23819 : if (TransformD64_2way) {
767 0 : while (blocks >= 2) {
768 0 : TransformD64_2way(out, in);
769 0 : out += 64;
770 0 : in += 128;
771 0 : blocks -= 2;
772 : }
773 0 : }
774 322842 : while (blocks) {
775 299023 : TransformD64(out, in);
776 299023 : out += 32;
777 299023 : in += 64;
778 299023 : --blocks;
779 : }
780 23819 : }
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