Line data Source code
1 : // Copyright (c) 2014-2022 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 : #include <compat/cpuid.h>
12 :
13 : #if defined(__linux__) && defined(ENABLE_ARM_SHANI) && !defined(BUILD_BITCOIN_INTERNAL)
14 : #include <sys/auxv.h>
15 : #include <asm/hwcap.h>
16 : #endif
17 :
18 128090 : #if defined(MAC_OSX) && defined(ENABLE_ARM_SHANI) && !defined(BUILD_BITCOIN_INTERNAL)
19 : #include <sys/types.h>
20 : #include <sys/sysctl.h>
21 : #endif
22 :
23 : #if defined(__x86_64__) || defined(__amd64__) || defined(__i386__)
24 : #if defined(USE_ASM)
25 : namespace sha256_sse4
26 : {
27 : void Transform(uint32_t* s, const unsigned char* chunk, size_t blocks);
28 : }
29 : #endif
30 : #endif
31 :
32 : namespace sha256d64_sse41
33 : {
34 : void Transform_4way(unsigned char* out, const unsigned char* in);
35 : }
36 :
37 : namespace sha256d64_avx2
38 : {
39 : void Transform_8way(unsigned char* out, const unsigned char* in);
40 : }
41 :
42 : namespace sha256d64_x86_shani
43 : {
44 : void Transform_2way(unsigned char* out, const unsigned char* in);
45 : }
46 :
47 : namespace sha256_x86_shani
48 : {
49 : void Transform(uint32_t* s, const unsigned char* chunk, size_t blocks);
50 : }
51 :
52 : namespace sha256_arm_shani
53 : {
54 : void Transform(uint32_t* s, const unsigned char* chunk, size_t blocks);
55 : }
56 :
57 : namespace sha256d64_arm_shani
58 : {
59 : void Transform_2way(unsigned char* out, const unsigned char* in);
60 : }
61 :
62 : // Internal implementation code.
63 : namespace
64 : {
65 : /// Internal SHA-256 implementation.
66 : namespace sha256
67 : {
68 7488 : uint32_t inline Ch(uint32_t x, uint32_t y, uint32_t z) { return z ^ (x & (y ^ z)); }
69 7488 : uint32_t inline Maj(uint32_t x, uint32_t y, uint32_t z) { return (x & y) | (z & (x | y)); }
70 7488 : uint32_t inline Sigma0(uint32_t x) { return (x >> 2 | x << 30) ^ (x >> 13 | x << 19) ^ (x >> 22 | x << 10); }
71 7488 : uint32_t inline Sigma1(uint32_t x) { return (x >> 6 | x << 26) ^ (x >> 11 | x << 21) ^ (x >> 25 | x << 7); }
72 5616 : uint32_t inline sigma0(uint32_t x) { return (x >> 7 | x << 25) ^ (x >> 18 | x << 14) ^ (x >> 3); }
73 5616 : 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 7488 : 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 7488 : uint32_t t1 = h + Sigma1(e) + Ch(e, f, g) + k;
79 7488 : uint32_t t2 = Sigma0(a) + Maj(a, b, c);
80 7488 : d += t1;
81 7488 : h = t1 + t2;
82 7488 : }
83 :
84 : /** Initialize SHA-256 state. */
85 229070 : void inline Initialize(uint32_t* s)
86 : {
87 229070 : s[0] = 0x6a09e667ul;
88 229070 : s[1] = 0xbb67ae85ul;
89 229070 : s[2] = 0x3c6ef372ul;
90 229070 : s[3] = 0xa54ff53aul;
91 229070 : s[4] = 0x510e527ful;
92 229070 : s[5] = 0x9b05688cul;
93 229070 : s[6] = 0x1f83d9abul;
94 229070 : s[7] = 0x5be0cd19ul;
95 229070 : }
96 :
97 : /** Perform a number of SHA-256 transformations, processing 64-byte chunks. */
98 117 : void Transform(uint32_t* s, const unsigned char* chunk, size_t blocks)
99 : {
100 234 : while (blocks--) {
101 117 : 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 :
104 117 : Round(a, b, c, d, e, f, g, h, 0x428a2f98 + (w0 = ReadBE32(chunk + 0)));
105 117 : Round(h, a, b, c, d, e, f, g, 0x71374491 + (w1 = ReadBE32(chunk + 4)));
106 117 : Round(g, h, a, b, c, d, e, f, 0xb5c0fbcf + (w2 = ReadBE32(chunk + 8)));
107 117 : Round(f, g, h, a, b, c, d, e, 0xe9b5dba5 + (w3 = ReadBE32(chunk + 12)));
108 117 : Round(e, f, g, h, a, b, c, d, 0x3956c25b + (w4 = ReadBE32(chunk + 16)));
109 117 : Round(d, e, f, g, h, a, b, c, 0x59f111f1 + (w5 = ReadBE32(chunk + 20)));
110 117 : Round(c, d, e, f, g, h, a, b, 0x923f82a4 + (w6 = ReadBE32(chunk + 24)));
111 117 : Round(b, c, d, e, f, g, h, a, 0xab1c5ed5 + (w7 = ReadBE32(chunk + 28)));
112 117 : Round(a, b, c, d, e, f, g, h, 0xd807aa98 + (w8 = ReadBE32(chunk + 32)));
113 117 : Round(h, a, b, c, d, e, f, g, 0x12835b01 + (w9 = ReadBE32(chunk + 36)));
114 117 : Round(g, h, a, b, c, d, e, f, 0x243185be + (w10 = ReadBE32(chunk + 40)));
115 117 : Round(f, g, h, a, b, c, d, e, 0x550c7dc3 + (w11 = ReadBE32(chunk + 44)));
116 117 : Round(e, f, g, h, a, b, c, d, 0x72be5d74 + (w12 = ReadBE32(chunk + 48)));
117 117 : Round(d, e, f, g, h, a, b, c, 0x80deb1fe + (w13 = ReadBE32(chunk + 52)));
118 117 : Round(c, d, e, f, g, h, a, b, 0x9bdc06a7 + (w14 = ReadBE32(chunk + 56)));
119 117 : Round(b, c, d, e, f, g, h, a, 0xc19bf174 + (w15 = ReadBE32(chunk + 60)));
120 :
121 117 : Round(a, b, c, d, e, f, g, h, 0xe49b69c1 + (w0 += sigma1(w14) + w9 + sigma0(w1)));
122 117 : Round(h, a, b, c, d, e, f, g, 0xefbe4786 + (w1 += sigma1(w15) + w10 + sigma0(w2)));
123 117 : Round(g, h, a, b, c, d, e, f, 0x0fc19dc6 + (w2 += sigma1(w0) + w11 + sigma0(w3)));
124 117 : Round(f, g, h, a, b, c, d, e, 0x240ca1cc + (w3 += sigma1(w1) + w12 + sigma0(w4)));
125 117 : Round(e, f, g, h, a, b, c, d, 0x2de92c6f + (w4 += sigma1(w2) + w13 + sigma0(w5)));
126 117 : Round(d, e, f, g, h, a, b, c, 0x4a7484aa + (w5 += sigma1(w3) + w14 + sigma0(w6)));
127 117 : Round(c, d, e, f, g, h, a, b, 0x5cb0a9dc + (w6 += sigma1(w4) + w15 + sigma0(w7)));
128 117 : Round(b, c, d, e, f, g, h, a, 0x76f988da + (w7 += sigma1(w5) + w0 + sigma0(w8)));
129 117 : Round(a, b, c, d, e, f, g, h, 0x983e5152 + (w8 += sigma1(w6) + w1 + sigma0(w9)));
130 117 : Round(h, a, b, c, d, e, f, g, 0xa831c66d + (w9 += sigma1(w7) + w2 + sigma0(w10)));
131 117 : Round(g, h, a, b, c, d, e, f, 0xb00327c8 + (w10 += sigma1(w8) + w3 + sigma0(w11)));
132 117 : Round(f, g, h, a, b, c, d, e, 0xbf597fc7 + (w11 += sigma1(w9) + w4 + sigma0(w12)));
133 117 : Round(e, f, g, h, a, b, c, d, 0xc6e00bf3 + (w12 += sigma1(w10) + w5 + sigma0(w13)));
134 117 : Round(d, e, f, g, h, a, b, c, 0xd5a79147 + (w13 += sigma1(w11) + w6 + sigma0(w14)));
135 117 : Round(c, d, e, f, g, h, a, b, 0x06ca6351 + (w14 += sigma1(w12) + w7 + sigma0(w15)));
136 117 : Round(b, c, d, e, f, g, h, a, 0x14292967 + (w15 += sigma1(w13) + w8 + sigma0(w0)));
137 :
138 117 : Round(a, b, c, d, e, f, g, h, 0x27b70a85 + (w0 += sigma1(w14) + w9 + sigma0(w1)));
139 117 : Round(h, a, b, c, d, e, f, g, 0x2e1b2138 + (w1 += sigma1(w15) + w10 + sigma0(w2)));
140 117 : Round(g, h, a, b, c, d, e, f, 0x4d2c6dfc + (w2 += sigma1(w0) + w11 + sigma0(w3)));
141 117 : Round(f, g, h, a, b, c, d, e, 0x53380d13 + (w3 += sigma1(w1) + w12 + sigma0(w4)));
142 117 : Round(e, f, g, h, a, b, c, d, 0x650a7354 + (w4 += sigma1(w2) + w13 + sigma0(w5)));
143 117 : Round(d, e, f, g, h, a, b, c, 0x766a0abb + (w5 += sigma1(w3) + w14 + sigma0(w6)));
144 117 : Round(c, d, e, f, g, h, a, b, 0x81c2c92e + (w6 += sigma1(w4) + w15 + sigma0(w7)));
145 117 : Round(b, c, d, e, f, g, h, a, 0x92722c85 + (w7 += sigma1(w5) + w0 + sigma0(w8)));
146 117 : Round(a, b, c, d, e, f, g, h, 0xa2bfe8a1 + (w8 += sigma1(w6) + w1 + sigma0(w9)));
147 117 : Round(h, a, b, c, d, e, f, g, 0xa81a664b + (w9 += sigma1(w7) + w2 + sigma0(w10)));
148 117 : Round(g, h, a, b, c, d, e, f, 0xc24b8b70 + (w10 += sigma1(w8) + w3 + sigma0(w11)));
149 117 : Round(f, g, h, a, b, c, d, e, 0xc76c51a3 + (w11 += sigma1(w9) + w4 + sigma0(w12)));
150 117 : Round(e, f, g, h, a, b, c, d, 0xd192e819 + (w12 += sigma1(w10) + w5 + sigma0(w13)));
151 117 : Round(d, e, f, g, h, a, b, c, 0xd6990624 + (w13 += sigma1(w11) + w6 + sigma0(w14)));
152 117 : Round(c, d, e, f, g, h, a, b, 0xf40e3585 + (w14 += sigma1(w12) + w7 + sigma0(w15)));
153 117 : Round(b, c, d, e, f, g, h, a, 0x106aa070 + (w15 += sigma1(w13) + w8 + sigma0(w0)));
154 :
155 117 : Round(a, b, c, d, e, f, g, h, 0x19a4c116 + (w0 += sigma1(w14) + w9 + sigma0(w1)));
156 117 : Round(h, a, b, c, d, e, f, g, 0x1e376c08 + (w1 += sigma1(w15) + w10 + sigma0(w2)));
157 117 : Round(g, h, a, b, c, d, e, f, 0x2748774c + (w2 += sigma1(w0) + w11 + sigma0(w3)));
158 117 : Round(f, g, h, a, b, c, d, e, 0x34b0bcb5 + (w3 += sigma1(w1) + w12 + sigma0(w4)));
159 117 : Round(e, f, g, h, a, b, c, d, 0x391c0cb3 + (w4 += sigma1(w2) + w13 + sigma0(w5)));
160 117 : Round(d, e, f, g, h, a, b, c, 0x4ed8aa4a + (w5 += sigma1(w3) + w14 + sigma0(w6)));
161 117 : Round(c, d, e, f, g, h, a, b, 0x5b9cca4f + (w6 += sigma1(w4) + w15 + sigma0(w7)));
162 117 : Round(b, c, d, e, f, g, h, a, 0x682e6ff3 + (w7 += sigma1(w5) + w0 + sigma0(w8)));
163 117 : Round(a, b, c, d, e, f, g, h, 0x748f82ee + (w8 += sigma1(w6) + w1 + sigma0(w9)));
164 117 : Round(h, a, b, c, d, e, f, g, 0x78a5636f + (w9 += sigma1(w7) + w2 + sigma0(w10)));
165 117 : Round(g, h, a, b, c, d, e, f, 0x84c87814 + (w10 += sigma1(w8) + w3 + sigma0(w11)));
166 117 : Round(f, g, h, a, b, c, d, e, 0x8cc70208 + (w11 += sigma1(w9) + w4 + sigma0(w12)));
167 117 : Round(e, f, g, h, a, b, c, d, 0x90befffa + (w12 += sigma1(w10) + w5 + sigma0(w13)));
168 117 : Round(d, e, f, g, h, a, b, c, 0xa4506ceb + (w13 += sigma1(w11) + w6 + sigma0(w14)));
169 117 : Round(c, d, e, f, g, h, a, b, 0xbef9a3f7 + (w14 + sigma1(w12) + w7 + sigma0(w15)));
170 117 : Round(b, c, d, e, f, g, h, a, 0xc67178f2 + (w15 + sigma1(w13) + w8 + sigma0(w0)));
171 :
172 117 : s[0] += a;
173 117 : s[1] += b;
174 117 : s[2] += c;
175 117 : s[3] += d;
176 117 : s[4] += e;
177 117 : s[5] += f;
178 117 : s[6] += g;
179 117 : s[7] += h;
180 117 : chunk += 64;
181 : }
182 117 : }
183 :
184 0 : void TransformD64(unsigned char* out, const unsigned char* in)
185 : {
186 : // Transform 1
187 0 : uint32_t a = 0x6a09e667ul;
188 0 : uint32_t b = 0xbb67ae85ul;
189 0 : uint32_t c = 0x3c6ef372ul;
190 0 : uint32_t d = 0xa54ff53aul;
191 0 : uint32_t e = 0x510e527ful;
192 0 : uint32_t f = 0x9b05688cul;
193 0 : uint32_t g = 0x1f83d9abul;
194 0 : 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 0 : Round(a, b, c, d, e, f, g, h, 0x428a2f98ul + (w0 = ReadBE32(in + 0)));
199 0 : Round(h, a, b, c, d, e, f, g, 0x71374491ul + (w1 = ReadBE32(in + 4)));
200 0 : Round(g, h, a, b, c, d, e, f, 0xb5c0fbcful + (w2 = ReadBE32(in + 8)));
201 0 : Round(f, g, h, a, b, c, d, e, 0xe9b5dba5ul + (w3 = ReadBE32(in + 12)));
202 0 : Round(e, f, g, h, a, b, c, d, 0x3956c25bul + (w4 = ReadBE32(in + 16)));
203 0 : Round(d, e, f, g, h, a, b, c, 0x59f111f1ul + (w5 = ReadBE32(in + 20)));
204 0 : Round(c, d, e, f, g, h, a, b, 0x923f82a4ul + (w6 = ReadBE32(in + 24)));
205 0 : Round(b, c, d, e, f, g, h, a, 0xab1c5ed5ul + (w7 = ReadBE32(in + 28)));
206 0 : Round(a, b, c, d, e, f, g, h, 0xd807aa98ul + (w8 = ReadBE32(in + 32)));
207 0 : Round(h, a, b, c, d, e, f, g, 0x12835b01ul + (w9 = ReadBE32(in + 36)));
208 0 : Round(g, h, a, b, c, d, e, f, 0x243185beul + (w10 = ReadBE32(in + 40)));
209 0 : Round(f, g, h, a, b, c, d, e, 0x550c7dc3ul + (w11 = ReadBE32(in + 44)));
210 0 : Round(e, f, g, h, a, b, c, d, 0x72be5d74ul + (w12 = ReadBE32(in + 48)));
211 0 : Round(d, e, f, g, h, a, b, c, 0x80deb1feul + (w13 = ReadBE32(in + 52)));
212 0 : Round(c, d, e, f, g, h, a, b, 0x9bdc06a7ul + (w14 = ReadBE32(in + 56)));
213 0 : Round(b, c, d, e, f, g, h, a, 0xc19bf174ul + (w15 = ReadBE32(in + 60)));
214 0 : Round(a, b, c, d, e, f, g, h, 0xe49b69c1ul + (w0 += sigma1(w14) + w9 + sigma0(w1)));
215 0 : Round(h, a, b, c, d, e, f, g, 0xefbe4786ul + (w1 += sigma1(w15) + w10 + sigma0(w2)));
216 0 : Round(g, h, a, b, c, d, e, f, 0x0fc19dc6ul + (w2 += sigma1(w0) + w11 + sigma0(w3)));
217 0 : Round(f, g, h, a, b, c, d, e, 0x240ca1ccul + (w3 += sigma1(w1) + w12 + sigma0(w4)));
218 0 : Round(e, f, g, h, a, b, c, d, 0x2de92c6ful + (w4 += sigma1(w2) + w13 + sigma0(w5)));
219 0 : Round(d, e, f, g, h, a, b, c, 0x4a7484aaul + (w5 += sigma1(w3) + w14 + sigma0(w6)));
220 0 : Round(c, d, e, f, g, h, a, b, 0x5cb0a9dcul + (w6 += sigma1(w4) + w15 + sigma0(w7)));
221 0 : Round(b, c, d, e, f, g, h, a, 0x76f988daul + (w7 += sigma1(w5) + w0 + sigma0(w8)));
222 0 : Round(a, b, c, d, e, f, g, h, 0x983e5152ul + (w8 += sigma1(w6) + w1 + sigma0(w9)));
223 0 : Round(h, a, b, c, d, e, f, g, 0xa831c66dul + (w9 += sigma1(w7) + w2 + sigma0(w10)));
224 0 : Round(g, h, a, b, c, d, e, f, 0xb00327c8ul + (w10 += sigma1(w8) + w3 + sigma0(w11)));
225 0 : Round(f, g, h, a, b, c, d, e, 0xbf597fc7ul + (w11 += sigma1(w9) + w4 + sigma0(w12)));
226 0 : Round(e, f, g, h, a, b, c, d, 0xc6e00bf3ul + (w12 += sigma1(w10) + w5 + sigma0(w13)));
227 0 : Round(d, e, f, g, h, a, b, c, 0xd5a79147ul + (w13 += sigma1(w11) + w6 + sigma0(w14)));
228 0 : Round(c, d, e, f, g, h, a, b, 0x06ca6351ul + (w14 += sigma1(w12) + w7 + sigma0(w15)));
229 0 : Round(b, c, d, e, f, g, h, a, 0x14292967ul + (w15 += sigma1(w13) + w8 + sigma0(w0)));
230 0 : Round(a, b, c, d, e, f, g, h, 0x27b70a85ul + (w0 += sigma1(w14) + w9 + sigma0(w1)));
231 0 : Round(h, a, b, c, d, e, f, g, 0x2e1b2138ul + (w1 += sigma1(w15) + w10 + sigma0(w2)));
232 0 : Round(g, h, a, b, c, d, e, f, 0x4d2c6dfcul + (w2 += sigma1(w0) + w11 + sigma0(w3)));
233 0 : Round(f, g, h, a, b, c, d, e, 0x53380d13ul + (w3 += sigma1(w1) + w12 + sigma0(w4)));
234 0 : Round(e, f, g, h, a, b, c, d, 0x650a7354ul + (w4 += sigma1(w2) + w13 + sigma0(w5)));
235 0 : Round(d, e, f, g, h, a, b, c, 0x766a0abbul + (w5 += sigma1(w3) + w14 + sigma0(w6)));
236 0 : Round(c, d, e, f, g, h, a, b, 0x81c2c92eul + (w6 += sigma1(w4) + w15 + sigma0(w7)));
237 0 : Round(b, c, d, e, f, g, h, a, 0x92722c85ul + (w7 += sigma1(w5) + w0 + sigma0(w8)));
238 0 : Round(a, b, c, d, e, f, g, h, 0xa2bfe8a1ul + (w8 += sigma1(w6) + w1 + sigma0(w9)));
239 0 : Round(h, a, b, c, d, e, f, g, 0xa81a664bul + (w9 += sigma1(w7) + w2 + sigma0(w10)));
240 0 : Round(g, h, a, b, c, d, e, f, 0xc24b8b70ul + (w10 += sigma1(w8) + w3 + sigma0(w11)));
241 0 : Round(f, g, h, a, b, c, d, e, 0xc76c51a3ul + (w11 += sigma1(w9) + w4 + sigma0(w12)));
242 0 : Round(e, f, g, h, a, b, c, d, 0xd192e819ul + (w12 += sigma1(w10) + w5 + sigma0(w13)));
243 0 : Round(d, e, f, g, h, a, b, c, 0xd6990624ul + (w13 += sigma1(w11) + w6 + sigma0(w14)));
244 0 : Round(c, d, e, f, g, h, a, b, 0xf40e3585ul + (w14 += sigma1(w12) + w7 + sigma0(w15)));
245 0 : Round(b, c, d, e, f, g, h, a, 0x106aa070ul + (w15 += sigma1(w13) + w8 + sigma0(w0)));
246 0 : Round(a, b, c, d, e, f, g, h, 0x19a4c116ul + (w0 += sigma1(w14) + w9 + sigma0(w1)));
247 0 : Round(h, a, b, c, d, e, f, g, 0x1e376c08ul + (w1 += sigma1(w15) + w10 + sigma0(w2)));
248 0 : Round(g, h, a, b, c, d, e, f, 0x2748774cul + (w2 += sigma1(w0) + w11 + sigma0(w3)));
249 0 : Round(f, g, h, a, b, c, d, e, 0x34b0bcb5ul + (w3 += sigma1(w1) + w12 + sigma0(w4)));
250 0 : Round(e, f, g, h, a, b, c, d, 0x391c0cb3ul + (w4 += sigma1(w2) + w13 + sigma0(w5)));
251 0 : Round(d, e, f, g, h, a, b, c, 0x4ed8aa4aul + (w5 += sigma1(w3) + w14 + sigma0(w6)));
252 0 : Round(c, d, e, f, g, h, a, b, 0x5b9cca4ful + (w6 += sigma1(w4) + w15 + sigma0(w7)));
253 0 : Round(b, c, d, e, f, g, h, a, 0x682e6ff3ul + (w7 += sigma1(w5) + w0 + sigma0(w8)));
254 0 : Round(a, b, c, d, e, f, g, h, 0x748f82eeul + (w8 += sigma1(w6) + w1 + sigma0(w9)));
255 0 : Round(h, a, b, c, d, e, f, g, 0x78a5636ful + (w9 += sigma1(w7) + w2 + sigma0(w10)));
256 0 : Round(g, h, a, b, c, d, e, f, 0x84c87814ul + (w10 += sigma1(w8) + w3 + sigma0(w11)));
257 0 : Round(f, g, h, a, b, c, d, e, 0x8cc70208ul + (w11 += sigma1(w9) + w4 + sigma0(w12)));
258 0 : Round(e, f, g, h, a, b, c, d, 0x90befffaul + (w12 += sigma1(w10) + w5 + sigma0(w13)));
259 0 : Round(d, e, f, g, h, a, b, c, 0xa4506cebul + (w13 += sigma1(w11) + w6 + sigma0(w14)));
260 0 : Round(c, d, e, f, g, h, a, b, 0xbef9a3f7ul + (w14 + sigma1(w12) + w7 + sigma0(w15)));
261 0 : Round(b, c, d, e, f, g, h, a, 0xc67178f2ul + (w15 + sigma1(w13) + w8 + sigma0(w0)));
262 :
263 0 : a += 0x6a09e667ul;
264 0 : b += 0xbb67ae85ul;
265 0 : c += 0x3c6ef372ul;
266 0 : d += 0xa54ff53aul;
267 0 : e += 0x510e527ful;
268 0 : f += 0x9b05688cul;
269 0 : g += 0x1f83d9abul;
270 0 : h += 0x5be0cd19ul;
271 :
272 0 : uint32_t t0 = a, t1 = b, t2 = c, t3 = d, t4 = e, t5 = f, t6 = g, t7 = h;
273 :
274 : // Transform 2
275 0 : Round(a, b, c, d, e, f, g, h, 0xc28a2f98ul);
276 0 : Round(h, a, b, c, d, e, f, g, 0x71374491ul);
277 0 : Round(g, h, a, b, c, d, e, f, 0xb5c0fbcful);
278 0 : Round(f, g, h, a, b, c, d, e, 0xe9b5dba5ul);
279 0 : Round(e, f, g, h, a, b, c, d, 0x3956c25bul);
280 0 : Round(d, e, f, g, h, a, b, c, 0x59f111f1ul);
281 0 : Round(c, d, e, f, g, h, a, b, 0x923f82a4ul);
282 0 : Round(b, c, d, e, f, g, h, a, 0xab1c5ed5ul);
283 0 : Round(a, b, c, d, e, f, g, h, 0xd807aa98ul);
284 0 : Round(h, a, b, c, d, e, f, g, 0x12835b01ul);
285 0 : Round(g, h, a, b, c, d, e, f, 0x243185beul);
286 0 : Round(f, g, h, a, b, c, d, e, 0x550c7dc3ul);
287 0 : Round(e, f, g, h, a, b, c, d, 0x72be5d74ul);
288 0 : Round(d, e, f, g, h, a, b, c, 0x80deb1feul);
289 0 : Round(c, d, e, f, g, h, a, b, 0x9bdc06a7ul);
290 0 : Round(b, c, d, e, f, g, h, a, 0xc19bf374ul);
291 0 : Round(a, b, c, d, e, f, g, h, 0x649b69c1ul);
292 0 : Round(h, a, b, c, d, e, f, g, 0xf0fe4786ul);
293 0 : Round(g, h, a, b, c, d, e, f, 0x0fe1edc6ul);
294 0 : Round(f, g, h, a, b, c, d, e, 0x240cf254ul);
295 0 : Round(e, f, g, h, a, b, c, d, 0x4fe9346ful);
296 0 : Round(d, e, f, g, h, a, b, c, 0x6cc984beul);
297 0 : Round(c, d, e, f, g, h, a, b, 0x61b9411eul);
298 0 : Round(b, c, d, e, f, g, h, a, 0x16f988faul);
299 0 : Round(a, b, c, d, e, f, g, h, 0xf2c65152ul);
300 0 : Round(h, a, b, c, d, e, f, g, 0xa88e5a6dul);
301 0 : Round(g, h, a, b, c, d, e, f, 0xb019fc65ul);
302 0 : Round(f, g, h, a, b, c, d, e, 0xb9d99ec7ul);
303 0 : Round(e, f, g, h, a, b, c, d, 0x9a1231c3ul);
304 0 : Round(d, e, f, g, h, a, b, c, 0xe70eeaa0ul);
305 0 : Round(c, d, e, f, g, h, a, b, 0xfdb1232bul);
306 0 : Round(b, c, d, e, f, g, h, a, 0xc7353eb0ul);
307 0 : Round(a, b, c, d, e, f, g, h, 0x3069bad5ul);
308 0 : Round(h, a, b, c, d, e, f, g, 0xcb976d5ful);
309 0 : Round(g, h, a, b, c, d, e, f, 0x5a0f118ful);
310 0 : Round(f, g, h, a, b, c, d, e, 0xdc1eeefdul);
311 0 : Round(e, f, g, h, a, b, c, d, 0x0a35b689ul);
312 0 : Round(d, e, f, g, h, a, b, c, 0xde0b7a04ul);
313 0 : Round(c, d, e, f, g, h, a, b, 0x58f4ca9dul);
314 0 : Round(b, c, d, e, f, g, h, a, 0xe15d5b16ul);
315 0 : Round(a, b, c, d, e, f, g, h, 0x007f3e86ul);
316 0 : Round(h, a, b, c, d, e, f, g, 0x37088980ul);
317 0 : Round(g, h, a, b, c, d, e, f, 0xa507ea32ul);
318 0 : Round(f, g, h, a, b, c, d, e, 0x6fab9537ul);
319 0 : Round(e, f, g, h, a, b, c, d, 0x17406110ul);
320 0 : Round(d, e, f, g, h, a, b, c, 0x0d8cd6f1ul);
321 0 : Round(c, d, e, f, g, h, a, b, 0xcdaa3b6dul);
322 0 : Round(b, c, d, e, f, g, h, a, 0xc0bbbe37ul);
323 0 : Round(a, b, c, d, e, f, g, h, 0x83613bdaul);
324 0 : Round(h, a, b, c, d, e, f, g, 0xdb48a363ul);
325 0 : Round(g, h, a, b, c, d, e, f, 0x0b02e931ul);
326 0 : Round(f, g, h, a, b, c, d, e, 0x6fd15ca7ul);
327 0 : Round(e, f, g, h, a, b, c, d, 0x521afacaul);
328 0 : Round(d, e, f, g, h, a, b, c, 0x31338431ul);
329 0 : Round(c, d, e, f, g, h, a, b, 0x6ed41a95ul);
330 0 : Round(b, c, d, e, f, g, h, a, 0x6d437890ul);
331 0 : Round(a, b, c, d, e, f, g, h, 0xc39c91f2ul);
332 0 : Round(h, a, b, c, d, e, f, g, 0x9eccabbdul);
333 0 : Round(g, h, a, b, c, d, e, f, 0xb5c9a0e6ul);
334 0 : Round(f, g, h, a, b, c, d, e, 0x532fb63cul);
335 0 : Round(e, f, g, h, a, b, c, d, 0xd2c741c6ul);
336 0 : Round(d, e, f, g, h, a, b, c, 0x07237ea3ul);
337 0 : Round(c, d, e, f, g, h, a, b, 0xa4954b68ul);
338 0 : Round(b, c, d, e, f, g, h, a, 0x4c191d76ul);
339 :
340 0 : w0 = t0 + a;
341 0 : w1 = t1 + b;
342 0 : w2 = t2 + c;
343 0 : w3 = t3 + d;
344 0 : w4 = t4 + e;
345 0 : w5 = t5 + f;
346 0 : w6 = t6 + g;
347 0 : w7 = t7 + h;
348 :
349 : // Transform 3
350 0 : a = 0x6a09e667ul;
351 0 : b = 0xbb67ae85ul;
352 0 : c = 0x3c6ef372ul;
353 0 : d = 0xa54ff53aul;
354 0 : e = 0x510e527ful;
355 0 : f = 0x9b05688cul;
356 0 : g = 0x1f83d9abul;
357 0 : h = 0x5be0cd19ul;
358 :
359 0 : Round(a, b, c, d, e, f, g, h, 0x428a2f98ul + w0);
360 0 : Round(h, a, b, c, d, e, f, g, 0x71374491ul + w1);
361 0 : Round(g, h, a, b, c, d, e, f, 0xb5c0fbcful + w2);
362 0 : Round(f, g, h, a, b, c, d, e, 0xe9b5dba5ul + w3);
363 0 : Round(e, f, g, h, a, b, c, d, 0x3956c25bul + w4);
364 0 : Round(d, e, f, g, h, a, b, c, 0x59f111f1ul + w5);
365 0 : Round(c, d, e, f, g, h, a, b, 0x923f82a4ul + w6);
366 0 : Round(b, c, d, e, f, g, h, a, 0xab1c5ed5ul + w7);
367 0 : Round(a, b, c, d, e, f, g, h, 0x5807aa98ul);
368 0 : Round(h, a, b, c, d, e, f, g, 0x12835b01ul);
369 0 : Round(g, h, a, b, c, d, e, f, 0x243185beul);
370 0 : Round(f, g, h, a, b, c, d, e, 0x550c7dc3ul);
371 0 : Round(e, f, g, h, a, b, c, d, 0x72be5d74ul);
372 0 : Round(d, e, f, g, h, a, b, c, 0x80deb1feul);
373 0 : Round(c, d, e, f, g, h, a, b, 0x9bdc06a7ul);
374 0 : Round(b, c, d, e, f, g, h, a, 0xc19bf274ul);
375 0 : Round(a, b, c, d, e, f, g, h, 0xe49b69c1ul + (w0 += sigma0(w1)));
376 0 : Round(h, a, b, c, d, e, f, g, 0xefbe4786ul + (w1 += 0xa00000ul + sigma0(w2)));
377 0 : Round(g, h, a, b, c, d, e, f, 0x0fc19dc6ul + (w2 += sigma1(w0) + sigma0(w3)));
378 0 : Round(f, g, h, a, b, c, d, e, 0x240ca1ccul + (w3 += sigma1(w1) + sigma0(w4)));
379 0 : Round(e, f, g, h, a, b, c, d, 0x2de92c6ful + (w4 += sigma1(w2) + sigma0(w5)));
380 0 : Round(d, e, f, g, h, a, b, c, 0x4a7484aaul + (w5 += sigma1(w3) + sigma0(w6)));
381 0 : Round(c, d, e, f, g, h, a, b, 0x5cb0a9dcul + (w6 += sigma1(w4) + 0x100ul + sigma0(w7)));
382 0 : Round(b, c, d, e, f, g, h, a, 0x76f988daul + (w7 += sigma1(w5) + w0 + 0x11002000ul));
383 0 : Round(a, b, c, d, e, f, g, h, 0x983e5152ul + (w8 = 0x80000000ul + sigma1(w6) + w1));
384 0 : Round(h, a, b, c, d, e, f, g, 0xa831c66dul + (w9 = sigma1(w7) + w2));
385 0 : Round(g, h, a, b, c, d, e, f, 0xb00327c8ul + (w10 = sigma1(w8) + w3));
386 0 : Round(f, g, h, a, b, c, d, e, 0xbf597fc7ul + (w11 = sigma1(w9) + w4));
387 0 : Round(e, f, g, h, a, b, c, d, 0xc6e00bf3ul + (w12 = sigma1(w10) + w5));
388 0 : Round(d, e, f, g, h, a, b, c, 0xd5a79147ul + (w13 = sigma1(w11) + w6));
389 0 : Round(c, d, e, f, g, h, a, b, 0x06ca6351ul + (w14 = sigma1(w12) + w7 + 0x400022ul));
390 0 : Round(b, c, d, e, f, g, h, a, 0x14292967ul + (w15 = 0x100ul + sigma1(w13) + w8 + sigma0(w0)));
391 0 : Round(a, b, c, d, e, f, g, h, 0x27b70a85ul + (w0 += sigma1(w14) + w9 + sigma0(w1)));
392 0 : Round(h, a, b, c, d, e, f, g, 0x2e1b2138ul + (w1 += sigma1(w15) + w10 + sigma0(w2)));
393 0 : Round(g, h, a, b, c, d, e, f, 0x4d2c6dfcul + (w2 += sigma1(w0) + w11 + sigma0(w3)));
394 0 : Round(f, g, h, a, b, c, d, e, 0x53380d13ul + (w3 += sigma1(w1) + w12 + sigma0(w4)));
395 0 : Round(e, f, g, h, a, b, c, d, 0x650a7354ul + (w4 += sigma1(w2) + w13 + sigma0(w5)));
396 0 : Round(d, e, f, g, h, a, b, c, 0x766a0abbul + (w5 += sigma1(w3) + w14 + sigma0(w6)));
397 0 : Round(c, d, e, f, g, h, a, b, 0x81c2c92eul + (w6 += sigma1(w4) + w15 + sigma0(w7)));
398 0 : Round(b, c, d, e, f, g, h, a, 0x92722c85ul + (w7 += sigma1(w5) + w0 + sigma0(w8)));
399 0 : Round(a, b, c, d, e, f, g, h, 0xa2bfe8a1ul + (w8 += sigma1(w6) + w1 + sigma0(w9)));
400 0 : Round(h, a, b, c, d, e, f, g, 0xa81a664bul + (w9 += sigma1(w7) + w2 + sigma0(w10)));
401 0 : Round(g, h, a, b, c, d, e, f, 0xc24b8b70ul + (w10 += sigma1(w8) + w3 + sigma0(w11)));
402 0 : Round(f, g, h, a, b, c, d, e, 0xc76c51a3ul + (w11 += sigma1(w9) + w4 + sigma0(w12)));
403 0 : Round(e, f, g, h, a, b, c, d, 0xd192e819ul + (w12 += sigma1(w10) + w5 + sigma0(w13)));
404 0 : Round(d, e, f, g, h, a, b, c, 0xd6990624ul + (w13 += sigma1(w11) + w6 + sigma0(w14)));
405 0 : Round(c, d, e, f, g, h, a, b, 0xf40e3585ul + (w14 += sigma1(w12) + w7 + sigma0(w15)));
406 0 : Round(b, c, d, e, f, g, h, a, 0x106aa070ul + (w15 += sigma1(w13) + w8 + sigma0(w0)));
407 0 : Round(a, b, c, d, e, f, g, h, 0x19a4c116ul + (w0 += sigma1(w14) + w9 + sigma0(w1)));
408 0 : Round(h, a, b, c, d, e, f, g, 0x1e376c08ul + (w1 += sigma1(w15) + w10 + sigma0(w2)));
409 0 : Round(g, h, a, b, c, d, e, f, 0x2748774cul + (w2 += sigma1(w0) + w11 + sigma0(w3)));
410 0 : Round(f, g, h, a, b, c, d, e, 0x34b0bcb5ul + (w3 += sigma1(w1) + w12 + sigma0(w4)));
411 0 : Round(e, f, g, h, a, b, c, d, 0x391c0cb3ul + (w4 += sigma1(w2) + w13 + sigma0(w5)));
412 0 : Round(d, e, f, g, h, a, b, c, 0x4ed8aa4aul + (w5 += sigma1(w3) + w14 + sigma0(w6)));
413 0 : Round(c, d, e, f, g, h, a, b, 0x5b9cca4ful + (w6 += sigma1(w4) + w15 + sigma0(w7)));
414 0 : Round(b, c, d, e, f, g, h, a, 0x682e6ff3ul + (w7 += sigma1(w5) + w0 + sigma0(w8)));
415 0 : Round(a, b, c, d, e, f, g, h, 0x748f82eeul + (w8 += sigma1(w6) + w1 + sigma0(w9)));
416 0 : Round(h, a, b, c, d, e, f, g, 0x78a5636ful + (w9 += sigma1(w7) + w2 + sigma0(w10)));
417 0 : Round(g, h, a, b, c, d, e, f, 0x84c87814ul + (w10 += sigma1(w8) + w3 + sigma0(w11)));
418 0 : Round(f, g, h, a, b, c, d, e, 0x8cc70208ul + (w11 += sigma1(w9) + w4 + sigma0(w12)));
419 0 : Round(e, f, g, h, a, b, c, d, 0x90befffaul + (w12 += sigma1(w10) + w5 + sigma0(w13)));
420 0 : Round(d, e, f, g, h, a, b, c, 0xa4506cebul + (w13 += sigma1(w11) + w6 + sigma0(w14)));
421 0 : Round(c, d, e, f, g, h, a, b, 0xbef9a3f7ul + (w14 + sigma1(w12) + w7 + sigma0(w15)));
422 0 : Round(b, c, d, e, f, g, h, a, 0xc67178f2ul + (w15 + sigma1(w13) + w8 + sigma0(w0)));
423 :
424 : // Output
425 0 : WriteBE32(out + 0, a + 0x6a09e667ul);
426 0 : WriteBE32(out + 4, b + 0xbb67ae85ul);
427 0 : WriteBE32(out + 8, c + 0x3c6ef372ul);
428 0 : WriteBE32(out + 12, d + 0xa54ff53aul);
429 0 : WriteBE32(out + 16, e + 0x510e527ful);
430 0 : WriteBE32(out + 20, f + 0x9b05688cul);
431 0 : WriteBE32(out + 24, g + 0x1f83d9abul);
432 0 : WriteBE32(out + 28, h + 0x5be0cd19ul);
433 0 : }
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 1539 : 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 1539 : 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 1539 : sha256::Initialize(s);
457 1539 : tr(s, in, 1);
458 1539 : tr(s, padding1, 1);
459 1539 : WriteBE32(buffer2 + 0, s[0]);
460 1539 : WriteBE32(buffer2 + 4, s[1]);
461 1539 : WriteBE32(buffer2 + 8, s[2]);
462 1539 : WriteBE32(buffer2 + 12, s[3]);
463 1539 : WriteBE32(buffer2 + 16, s[4]);
464 1539 : WriteBE32(buffer2 + 20, s[5]);
465 1539 : WriteBE32(buffer2 + 24, s[6]);
466 1539 : WriteBE32(buffer2 + 28, s[7]);
467 1539 : sha256::Initialize(s);
468 1539 : tr(s, buffer2, 1);
469 1539 : WriteBE32(out + 0, s[0]);
470 1539 : WriteBE32(out + 4, s[1]);
471 1539 : WriteBE32(out + 8, s[2]);
472 1539 : WriteBE32(out + 12, s[3]);
473 1539 : WriteBE32(out + 16, s[4]);
474 1539 : WriteBE32(out + 20, s[5]);
475 1539 : WriteBE32(out + 24, s[6]);
476 1539 : WriteBE32(out + 28, s[7]);
477 1539 : }
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 1 : 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 10 : for (size_t i = 0; i <= 8; ++i) {
535 : uint32_t state[8];
536 9 : std::copy(init, init + 8, state);
537 9 : Transform(state, data + 1, i);
538 9 : if (!std::equal(state, state + 8, result[i])) return false;
539 9 : }
540 :
541 : // Test TransformD64
542 : unsigned char out[32];
543 1 : TransformD64(out, data + 1);
544 1 : if (!std::equal(out, out + 32, result_d64)) return false;
545 :
546 : // Test TransformD64_2way, if available.
547 1 : if (TransformD64_2way) {
548 : unsigned char out[64];
549 1 : TransformD64_2way(out, data + 1);
550 1 : if (!std::equal(out, out + 64, result_d64)) return false;
551 1 : }
552 :
553 : // Test TransformD64_4way, if available.
554 1 : 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 1 : 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 1 : return true;
568 1 : }
569 :
570 : #if defined(USE_ASM) && (defined(__x86_64__) || defined(__amd64__) || defined(__i386__))
571 : /** Check whether the OS has enabled AVX registers. */
572 1 : bool AVXEnabled()
573 : {
574 : uint32_t a, d;
575 1 : __asm__("xgetbv" : "=a"(a), "=d"(d) : "c"(0));
576 1 : return (a & 6) == 6;
577 : }
578 : #endif
579 : } // namespace
580 :
581 :
582 1 : std::string SHA256AutoDetect()
583 : {
584 1 : std::string ret = "standard";
585 : #if defined(USE_ASM) && defined(HAVE_GETCPUID)
586 1 : bool have_sse4 = false;
587 1 : bool have_xsave = false;
588 1 : bool have_avx = false;
589 1 : [[maybe_unused]] bool have_avx2 = false;
590 1 : [[maybe_unused]] bool have_x86_shani = false;
591 1 : [[maybe_unused]] bool enabled_avx = false;
592 :
593 : uint32_t eax, ebx, ecx, edx;
594 1 : GetCPUID(1, 0, eax, ebx, ecx, edx);
595 1 : have_sse4 = (ecx >> 19) & 1;
596 1 : have_xsave = (ecx >> 27) & 1;
597 1 : have_avx = (ecx >> 28) & 1;
598 1 : if (have_xsave && have_avx) {
599 1 : enabled_avx = AVXEnabled();
600 1 : }
601 1 : if (have_sse4) {
602 1 : GetCPUID(7, 0, eax, ebx, ecx, edx);
603 1 : have_avx2 = (ebx >> 5) & 1;
604 1 : have_x86_shani = (ebx >> 29) & 1;
605 1 : }
606 :
607 : #if defined(ENABLE_X86_SHANI) && !defined(BUILD_BITCOIN_INTERNAL)
608 1 : if (have_x86_shani) {
609 1 : Transform = sha256_x86_shani::Transform;
610 1 : TransformD64 = TransformD64Wrapper<sha256_x86_shani::Transform>;
611 1 : TransformD64_2way = sha256d64_x86_shani::Transform_2way;
612 1 : ret = "x86_shani(1way,2way)";
613 1 : have_sse4 = false; // Disable SSE4/AVX2;
614 1 : have_avx2 = false;
615 1 : }
616 : #endif
617 :
618 1 : if (have_sse4) {
619 : #if defined(__x86_64__) || defined(__amd64__)
620 0 : Transform = sha256_sse4::Transform;
621 0 : TransformD64 = TransformD64Wrapper<sha256_sse4::Transform>;
622 0 : ret = "sse4(1way)";
623 : #endif
624 : #if defined(ENABLE_SSE41) && !defined(BUILD_BITCOIN_INTERNAL)
625 0 : TransformD64_4way = sha256d64_sse41::Transform_4way;
626 0 : ret += ",sse41(4way)";
627 : #endif
628 0 : }
629 :
630 : #if defined(ENABLE_AVX2) && !defined(BUILD_BITCOIN_INTERNAL)
631 1 : if (have_avx2 && have_avx && enabled_avx) {
632 0 : TransformD64_8way = sha256d64_avx2::Transform_8way;
633 0 : ret += ",avx2(8way)";
634 0 : }
635 : #endif
636 : #endif // defined(USE_ASM) && defined(HAVE_GETCPUID)
637 :
638 : #if defined(ENABLE_ARM_SHANI) && !defined(BUILD_BITCOIN_INTERNAL)
639 : bool have_arm_shani = false;
640 :
641 : #if defined(__linux__)
642 : #if defined(__arm__) // 32-bit
643 : if (getauxval(AT_HWCAP2) & HWCAP2_SHA2) {
644 : have_arm_shani = true;
645 : }
646 : #endif
647 : #if defined(__aarch64__) // 64-bit
648 : if (getauxval(AT_HWCAP) & HWCAP_SHA2) {
649 : have_arm_shani = true;
650 : }
651 : #endif
652 : #endif
653 :
654 : #if defined(MAC_OSX)
655 : int val = 0;
656 : size_t len = sizeof(val);
657 : if (sysctlbyname("hw.optional.arm.FEAT_SHA256", &val, &len, nullptr, 0) == 0) {
658 : have_arm_shani = val != 0;
659 : }
660 : #endif
661 :
662 : if (have_arm_shani) {
663 : Transform = sha256_arm_shani::Transform;
664 : TransformD64 = TransformD64Wrapper<sha256_arm_shani::Transform>;
665 : TransformD64_2way = sha256d64_arm_shani::Transform_2way;
666 : ret = "arm_shani(1way,2way)";
667 : }
668 : #endif
669 :
670 1 : assert(SelfTest());
671 1 : return ret;
672 1 : }
673 :
674 : ////// SHA-256
675 :
676 128090 : CSHA256::CSHA256()
677 : {
678 128090 : sha256::Initialize(s);
679 128090 : }
680 :
681 7228718 : CSHA256& CSHA256::Write(const unsigned char* data, size_t len)
682 : {
683 7228718 : const unsigned char* end = data + len;
684 7228718 : size_t bufsize = bytes % 64;
685 7228718 : if (bufsize && bufsize + len >= 64) {
686 : // Fill the buffer, and process it.
687 1232511 : memcpy(buf + bufsize, data, 64 - bufsize);
688 1232511 : bytes += 64 - bufsize;
689 1232511 : data += 64 - bufsize;
690 1232511 : Transform(s, buf, 1);
691 1232511 : bufsize = 0;
692 1232511 : }
693 7228718 : if (end - data >= 64) {
694 0 : size_t blocks = (end - data) / 64;
695 0 : Transform(s, data, blocks);
696 0 : data += 64 * blocks;
697 0 : bytes += 64 * blocks;
698 0 : }
699 7228718 : if (end > data) {
700 : // Fill the buffer with what remains.
701 6899123 : memcpy(buf + bufsize, data, end - data);
702 6899123 : bytes += end - data;
703 6899123 : }
704 7228718 : return *this;
705 : }
706 :
707 232878 : void CSHA256::Finalize(unsigned char hash[OUTPUT_SIZE])
708 : {
709 : static const unsigned char pad[64] = {0x80};
710 : unsigned char sizedesc[8];
711 232878 : WriteBE64(sizedesc, bytes << 3);
712 232878 : Write(pad, 1 + ((119 - (bytes % 64)) % 64));
713 232878 : Write(sizedesc, 8);
714 232878 : WriteBE32(hash, s[0]);
715 232878 : WriteBE32(hash + 4, s[1]);
716 232878 : WriteBE32(hash + 8, s[2]);
717 232878 : WriteBE32(hash + 12, s[3]);
718 232878 : WriteBE32(hash + 16, s[4]);
719 232878 : WriteBE32(hash + 20, s[5]);
720 232878 : WriteBE32(hash + 24, s[6]);
721 232878 : WriteBE32(hash + 28, s[7]);
722 232878 : }
723 :
724 97902 : CSHA256& CSHA256::Reset()
725 : {
726 97902 : bytes = 0;
727 97902 : sha256::Initialize(s);
728 97902 : return *this;
729 : }
730 :
731 1626 : void SHA256D64(unsigned char* out, const unsigned char* in, size_t blocks)
732 : {
733 1626 : if (TransformD64_8way) {
734 0 : while (blocks >= 8) {
735 0 : TransformD64_8way(out, in);
736 0 : out += 256;
737 0 : in += 512;
738 0 : blocks -= 8;
739 : }
740 0 : }
741 1626 : if (TransformD64_4way) {
742 0 : while (blocks >= 4) {
743 0 : TransformD64_4way(out, in);
744 0 : out += 128;
745 0 : in += 256;
746 0 : blocks -= 4;
747 : }
748 0 : }
749 1626 : if (TransformD64_2way) {
750 1716 : while (blocks >= 2) {
751 90 : TransformD64_2way(out, in);
752 90 : out += 64;
753 90 : in += 128;
754 90 : blocks -= 2;
755 : }
756 1626 : }
757 3164 : while (blocks) {
758 1538 : TransformD64(out, in);
759 1538 : out += 32;
760 1538 : in += 64;
761 1538 : --blocks;
762 : }
763 1626 : }
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