Line data Source code
1 : // Copyright (c) 2014 The Bitcoin 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/ripemd160.h"
6 :
7 : #include "crypto/common.h"
8 :
9 : #include <string.h>
10 :
11 : // Internal implementation code.
12 : namespace
13 : {
14 : /// Internal RIPEMD-160 implementation.
15 : namespace ripemd160
16 : {
17 9330400 : uint32_t inline f1(uint32_t x, uint32_t y, uint32_t z) { return x ^ y ^ z; }
18 9330400 : uint32_t inline f2(uint32_t x, uint32_t y, uint32_t z) { return (x & y) | (~x & z); }
19 9330400 : uint32_t inline f3(uint32_t x, uint32_t y, uint32_t z) { return (x | ~y) ^ z; }
20 9330400 : uint32_t inline f4(uint32_t x, uint32_t y, uint32_t z) { return (x & z) | (y & ~z); }
21 9330400 : uint32_t inline f5(uint32_t x, uint32_t y, uint32_t z) { return x ^ (y | ~z); }
22 :
23 : /** Initialize RIPEMD-160 state. */
24 8293872 : void inline Initialize(uint32_t* s)
25 : {
26 8293872 : s[0] = 0x67452301ul;
27 8293872 : s[1] = 0xEFCDAB89ul;
28 8293872 : s[2] = 0x98BADCFEul;
29 8293872 : s[3] = 0x10325476ul;
30 8293872 : s[4] = 0xC3D2E1F0ul;
31 : }
32 :
33 9330400 : uint32_t inline rol(uint32_t x, int i) { return (x << i) | (x >> (32 - i)); }
34 :
35 9330400 : void inline Round(uint32_t& a, uint32_t b, uint32_t& c, uint32_t d, uint32_t e, uint32_t f, uint32_t x, uint32_t k, int r)
36 : {
37 9330400 : a = rol(a + f + x + k, r) + e;
38 9330400 : c = rol(c, 10);
39 : }
40 :
41 9330400 : void inline R11(uint32_t& a, uint32_t b, uint32_t& c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f1(b, c, d), x, 0, r); }
42 9330400 : void inline R21(uint32_t& a, uint32_t b, uint32_t& c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f2(b, c, d), x, 0x5A827999ul, r); }
43 9330400 : void inline R31(uint32_t& a, uint32_t b, uint32_t& c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f3(b, c, d), x, 0x6ED9EBA1ul, r); }
44 9330400 : void inline R41(uint32_t& a, uint32_t b, uint32_t& c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f4(b, c, d), x, 0x8F1BBCDCul, r); }
45 9330400 : void inline R51(uint32_t& a, uint32_t b, uint32_t& c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f5(b, c, d), x, 0xA953FD4Eul, r); }
46 :
47 9330400 : void inline R12(uint32_t& a, uint32_t b, uint32_t& c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f5(b, c, d), x, 0x50A28BE6ul, r); }
48 9330400 : void inline R22(uint32_t& a, uint32_t b, uint32_t& c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f4(b, c, d), x, 0x5C4DD124ul, r); }
49 9330400 : void inline R32(uint32_t& a, uint32_t b, uint32_t& c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f3(b, c, d), x, 0x6D703EF3ul, r); }
50 9330400 : void inline R42(uint32_t& a, uint32_t b, uint32_t& c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f2(b, c, d), x, 0x7A6D76E9ul, r); }
51 9330400 : void inline R52(uint32_t& a, uint32_t b, uint32_t& c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f1(b, c, d), x, 0, r); }
52 :
53 : /** Perform a RIPEMD-160 transformation, processing a 64-byte chunk. */
54 9330400 : void Transform(uint32_t* s, const unsigned char* chunk)
55 : {
56 9330400 : uint32_t a1 = s[0], b1 = s[1], c1 = s[2], d1 = s[3], e1 = s[4];
57 9330400 : uint32_t a2 = a1, b2 = b1, c2 = c1, d2 = d1, e2 = e1;
58 9330400 : uint32_t w0 = ReadLE32(chunk + 0), w1 = ReadLE32(chunk + 4), w2 = ReadLE32(chunk + 8), w3 = ReadLE32(chunk + 12);
59 9330400 : uint32_t w4 = ReadLE32(chunk + 16), w5 = ReadLE32(chunk + 20), w6 = ReadLE32(chunk + 24), w7 = ReadLE32(chunk + 28);
60 9330400 : uint32_t w8 = ReadLE32(chunk + 32), w9 = ReadLE32(chunk + 36), w10 = ReadLE32(chunk + 40), w11 = ReadLE32(chunk + 44);
61 9330400 : uint32_t w12 = ReadLE32(chunk + 48), w13 = ReadLE32(chunk + 52), w14 = ReadLE32(chunk + 56), w15 = ReadLE32(chunk + 60);
62 :
63 9330400 : R11(a1, b1, c1, d1, e1, w0, 11);
64 9330400 : R12(a2, b2, c2, d2, e2, w5, 8);
65 9330400 : R11(e1, a1, b1, c1, d1, w1, 14);
66 9330400 : R12(e2, a2, b2, c2, d2, w14, 9);
67 9330400 : R11(d1, e1, a1, b1, c1, w2, 15);
68 9330400 : R12(d2, e2, a2, b2, c2, w7, 9);
69 9330400 : R11(c1, d1, e1, a1, b1, w3, 12);
70 9330400 : R12(c2, d2, e2, a2, b2, w0, 11);
71 9330400 : R11(b1, c1, d1, e1, a1, w4, 5);
72 9330400 : R12(b2, c2, d2, e2, a2, w9, 13);
73 9330400 : R11(a1, b1, c1, d1, e1, w5, 8);
74 9330400 : R12(a2, b2, c2, d2, e2, w2, 15);
75 9330400 : R11(e1, a1, b1, c1, d1, w6, 7);
76 9330400 : R12(e2, a2, b2, c2, d2, w11, 15);
77 9330400 : R11(d1, e1, a1, b1, c1, w7, 9);
78 9330400 : R12(d2, e2, a2, b2, c2, w4, 5);
79 9330400 : R11(c1, d1, e1, a1, b1, w8, 11);
80 9330400 : R12(c2, d2, e2, a2, b2, w13, 7);
81 9330400 : R11(b1, c1, d1, e1, a1, w9, 13);
82 9330400 : R12(b2, c2, d2, e2, a2, w6, 7);
83 9330400 : R11(a1, b1, c1, d1, e1, w10, 14);
84 9330400 : R12(a2, b2, c2, d2, e2, w15, 8);
85 9330400 : R11(e1, a1, b1, c1, d1, w11, 15);
86 9330400 : R12(e2, a2, b2, c2, d2, w8, 11);
87 9330400 : R11(d1, e1, a1, b1, c1, w12, 6);
88 9330400 : R12(d2, e2, a2, b2, c2, w1, 14);
89 9330400 : R11(c1, d1, e1, a1, b1, w13, 7);
90 9330400 : R12(c2, d2, e2, a2, b2, w10, 14);
91 9330400 : R11(b1, c1, d1, e1, a1, w14, 9);
92 9330400 : R12(b2, c2, d2, e2, a2, w3, 12);
93 9330400 : R11(a1, b1, c1, d1, e1, w15, 8);
94 9330400 : R12(a2, b2, c2, d2, e2, w12, 6);
95 :
96 9330400 : R21(e1, a1, b1, c1, d1, w7, 7);
97 9330400 : R22(e2, a2, b2, c2, d2, w6, 9);
98 9330400 : R21(d1, e1, a1, b1, c1, w4, 6);
99 9330400 : R22(d2, e2, a2, b2, c2, w11, 13);
100 9330400 : R21(c1, d1, e1, a1, b1, w13, 8);
101 9330400 : R22(c2, d2, e2, a2, b2, w3, 15);
102 9330400 : R21(b1, c1, d1, e1, a1, w1, 13);
103 9330400 : R22(b2, c2, d2, e2, a2, w7, 7);
104 9330400 : R21(a1, b1, c1, d1, e1, w10, 11);
105 9330400 : R22(a2, b2, c2, d2, e2, w0, 12);
106 9330400 : R21(e1, a1, b1, c1, d1, w6, 9);
107 9330400 : R22(e2, a2, b2, c2, d2, w13, 8);
108 9330400 : R21(d1, e1, a1, b1, c1, w15, 7);
109 9330400 : R22(d2, e2, a2, b2, c2, w5, 9);
110 9330400 : R21(c1, d1, e1, a1, b1, w3, 15);
111 9330400 : R22(c2, d2, e2, a2, b2, w10, 11);
112 9330400 : R21(b1, c1, d1, e1, a1, w12, 7);
113 9330400 : R22(b2, c2, d2, e2, a2, w14, 7);
114 9330400 : R21(a1, b1, c1, d1, e1, w0, 12);
115 9330400 : R22(a2, b2, c2, d2, e2, w15, 7);
116 9330400 : R21(e1, a1, b1, c1, d1, w9, 15);
117 9330400 : R22(e2, a2, b2, c2, d2, w8, 12);
118 9330400 : R21(d1, e1, a1, b1, c1, w5, 9);
119 9330400 : R22(d2, e2, a2, b2, c2, w12, 7);
120 9330400 : R21(c1, d1, e1, a1, b1, w2, 11);
121 9330400 : R22(c2, d2, e2, a2, b2, w4, 6);
122 9330400 : R21(b1, c1, d1, e1, a1, w14, 7);
123 9330400 : R22(b2, c2, d2, e2, a2, w9, 15);
124 9330400 : R21(a1, b1, c1, d1, e1, w11, 13);
125 9330400 : R22(a2, b2, c2, d2, e2, w1, 13);
126 9330400 : R21(e1, a1, b1, c1, d1, w8, 12);
127 9330400 : R22(e2, a2, b2, c2, d2, w2, 11);
128 :
129 9330400 : R31(d1, e1, a1, b1, c1, w3, 11);
130 9330400 : R32(d2, e2, a2, b2, c2, w15, 9);
131 9330400 : R31(c1, d1, e1, a1, b1, w10, 13);
132 9330400 : R32(c2, d2, e2, a2, b2, w5, 7);
133 9330400 : R31(b1, c1, d1, e1, a1, w14, 6);
134 9330400 : R32(b2, c2, d2, e2, a2, w1, 15);
135 9330400 : R31(a1, b1, c1, d1, e1, w4, 7);
136 9330400 : R32(a2, b2, c2, d2, e2, w3, 11);
137 9330400 : R31(e1, a1, b1, c1, d1, w9, 14);
138 9330400 : R32(e2, a2, b2, c2, d2, w7, 8);
139 9330400 : R31(d1, e1, a1, b1, c1, w15, 9);
140 9330400 : R32(d2, e2, a2, b2, c2, w14, 6);
141 9330400 : R31(c1, d1, e1, a1, b1, w8, 13);
142 9330400 : R32(c2, d2, e2, a2, b2, w6, 6);
143 9330400 : R31(b1, c1, d1, e1, a1, w1, 15);
144 9330400 : R32(b2, c2, d2, e2, a2, w9, 14);
145 9330400 : R31(a1, b1, c1, d1, e1, w2, 14);
146 9330400 : R32(a2, b2, c2, d2, e2, w11, 12);
147 9330400 : R31(e1, a1, b1, c1, d1, w7, 8);
148 9330400 : R32(e2, a2, b2, c2, d2, w8, 13);
149 9330400 : R31(d1, e1, a1, b1, c1, w0, 13);
150 9330400 : R32(d2, e2, a2, b2, c2, w12, 5);
151 9330400 : R31(c1, d1, e1, a1, b1, w6, 6);
152 9330400 : R32(c2, d2, e2, a2, b2, w2, 14);
153 9330400 : R31(b1, c1, d1, e1, a1, w13, 5);
154 9330400 : R32(b2, c2, d2, e2, a2, w10, 13);
155 9330400 : R31(a1, b1, c1, d1, e1, w11, 12);
156 9330400 : R32(a2, b2, c2, d2, e2, w0, 13);
157 9330400 : R31(e1, a1, b1, c1, d1, w5, 7);
158 9330400 : R32(e2, a2, b2, c2, d2, w4, 7);
159 9330400 : R31(d1, e1, a1, b1, c1, w12, 5);
160 9330400 : R32(d2, e2, a2, b2, c2, w13, 5);
161 :
162 9330400 : R41(c1, d1, e1, a1, b1, w1, 11);
163 9330400 : R42(c2, d2, e2, a2, b2, w8, 15);
164 9330400 : R41(b1, c1, d1, e1, a1, w9, 12);
165 9330400 : R42(b2, c2, d2, e2, a2, w6, 5);
166 9330400 : R41(a1, b1, c1, d1, e1, w11, 14);
167 9330400 : R42(a2, b2, c2, d2, e2, w4, 8);
168 9330400 : R41(e1, a1, b1, c1, d1, w10, 15);
169 9330400 : R42(e2, a2, b2, c2, d2, w1, 11);
170 9330400 : R41(d1, e1, a1, b1, c1, w0, 14);
171 9330400 : R42(d2, e2, a2, b2, c2, w3, 14);
172 9330400 : R41(c1, d1, e1, a1, b1, w8, 15);
173 9330400 : R42(c2, d2, e2, a2, b2, w11, 14);
174 9330400 : R41(b1, c1, d1, e1, a1, w12, 9);
175 9330400 : R42(b2, c2, d2, e2, a2, w15, 6);
176 9330400 : R41(a1, b1, c1, d1, e1, w4, 8);
177 9330400 : R42(a2, b2, c2, d2, e2, w0, 14);
178 9330400 : R41(e1, a1, b1, c1, d1, w13, 9);
179 9330400 : R42(e2, a2, b2, c2, d2, w5, 6);
180 9330400 : R41(d1, e1, a1, b1, c1, w3, 14);
181 9330400 : R42(d2, e2, a2, b2, c2, w12, 9);
182 9330400 : R41(c1, d1, e1, a1, b1, w7, 5);
183 9330400 : R42(c2, d2, e2, a2, b2, w2, 12);
184 9330400 : R41(b1, c1, d1, e1, a1, w15, 6);
185 9330400 : R42(b2, c2, d2, e2, a2, w13, 9);
186 9330400 : R41(a1, b1, c1, d1, e1, w14, 8);
187 9330400 : R42(a2, b2, c2, d2, e2, w9, 12);
188 9330400 : R41(e1, a1, b1, c1, d1, w5, 6);
189 9330400 : R42(e2, a2, b2, c2, d2, w7, 5);
190 9330400 : R41(d1, e1, a1, b1, c1, w6, 5);
191 9330400 : R42(d2, e2, a2, b2, c2, w10, 15);
192 9330400 : R41(c1, d1, e1, a1, b1, w2, 12);
193 9330400 : R42(c2, d2, e2, a2, b2, w14, 8);
194 :
195 9330400 : R51(b1, c1, d1, e1, a1, w4, 9);
196 9330400 : R52(b2, c2, d2, e2, a2, w12, 8);
197 9330400 : R51(a1, b1, c1, d1, e1, w0, 15);
198 9330400 : R52(a2, b2, c2, d2, e2, w15, 5);
199 9330400 : R51(e1, a1, b1, c1, d1, w5, 5);
200 9330400 : R52(e2, a2, b2, c2, d2, w10, 12);
201 9330400 : R51(d1, e1, a1, b1, c1, w9, 11);
202 9330400 : R52(d2, e2, a2, b2, c2, w4, 9);
203 9330400 : R51(c1, d1, e1, a1, b1, w7, 6);
204 9330400 : R52(c2, d2, e2, a2, b2, w1, 12);
205 9330400 : R51(b1, c1, d1, e1, a1, w12, 8);
206 9330400 : R52(b2, c2, d2, e2, a2, w5, 5);
207 9330400 : R51(a1, b1, c1, d1, e1, w2, 13);
208 9330400 : R52(a2, b2, c2, d2, e2, w8, 14);
209 9330400 : R51(e1, a1, b1, c1, d1, w10, 12);
210 9330400 : R52(e2, a2, b2, c2, d2, w7, 6);
211 9330400 : R51(d1, e1, a1, b1, c1, w14, 5);
212 9330400 : R52(d2, e2, a2, b2, c2, w6, 8);
213 9330400 : R51(c1, d1, e1, a1, b1, w1, 12);
214 9330400 : R52(c2, d2, e2, a2, b2, w2, 13);
215 9330400 : R51(b1, c1, d1, e1, a1, w3, 13);
216 9330400 : R52(b2, c2, d2, e2, a2, w13, 6);
217 9330400 : R51(a1, b1, c1, d1, e1, w8, 14);
218 9330400 : R52(a2, b2, c2, d2, e2, w14, 5);
219 9330400 : R51(e1, a1, b1, c1, d1, w11, 11);
220 9330400 : R52(e2, a2, b2, c2, d2, w0, 15);
221 9330400 : R51(d1, e1, a1, b1, c1, w6, 8);
222 9330400 : R52(d2, e2, a2, b2, c2, w3, 13);
223 9330400 : R51(c1, d1, e1, a1, b1, w15, 5);
224 9330400 : R52(c2, d2, e2, a2, b2, w9, 11);
225 9330400 : R51(b1, c1, d1, e1, a1, w13, 6);
226 9330400 : R52(b2, c2, d2, e2, a2, w11, 11);
227 :
228 9330400 : uint32_t t = s[0];
229 9330400 : s[0] = s[1] + c1 + d2;
230 9330400 : s[1] = s[2] + d1 + e2;
231 9330400 : s[2] = s[3] + e1 + a2;
232 9330400 : s[3] = s[4] + a1 + b2;
233 9330400 : s[4] = t + b1 + c2;
234 9330400 : }
235 :
236 : } // namespace ripemd160
237 :
238 : } // namespace
239 :
240 : ////// RIPEMD160
241 :
242 8293872 : CRIPEMD160::CRIPEMD160() : bytes(0)
243 : {
244 8293872 : ripemd160::Initialize(s);
245 8293872 : }
246 :
247 24893326 : CRIPEMD160& CRIPEMD160::Write(const unsigned char* data, size_t len)
248 : {
249 24893326 : const unsigned char* end = data + len;
250 24893326 : size_t bufsize = bytes % 64;
251 24893326 : if (bufsize && bufsize + len >= 64) {
252 : // Fill the buffer, and process it.
253 8300925 : memcpy(buf + bufsize, data, 64 - bufsize);
254 8300925 : bytes += 64 - bufsize;
255 8300925 : data += 64 - bufsize;
256 8300925 : ripemd160::Transform(s, buf);
257 8300925 : bufsize = 0;
258 : }
259 25923190 : while (end >= data + 64) {
260 : // Process full chunks directly from the source.
261 1029420 : ripemd160::Transform(s, data);
262 1029895 : bytes += 64;
263 1029895 : data += 64;
264 : }
265 24893775 : if (end > data) {
266 : // Fill the buffer with what remains.
267 16596002 : memcpy(buf + bufsize, data, end - data);
268 16596002 : bytes += end - data;
269 : }
270 24893775 : return *this;
271 : }
272 :
273 8297200 : void CRIPEMD160::Finalize(unsigned char hash[OUTPUT_SIZE])
274 : {
275 8297200 : static const unsigned char pad[64] = {0x80};
276 8297200 : unsigned char sizedesc[8];
277 8297200 : WriteLE64(sizedesc, bytes << 3);
278 8297200 : Write(pad, 1 + ((119 - (bytes % 64)) % 64));
279 8297186 : Write(sizedesc, 8);
280 8297188 : WriteLE32(hash, s[0]);
281 8297188 : WriteLE32(hash + 4, s[1]);
282 8297188 : WriteLE32(hash + 8, s[2]);
283 8297188 : WriteLE32(hash + 12, s[3]);
284 8297188 : WriteLE32(hash + 16, s[4]);
285 8297188 : }
286 :
287 0 : CRIPEMD160& CRIPEMD160::Reset()
288 : {
289 0 : bytes = 0;
290 0 : ripemd160::Initialize(s);
291 0 : return *this;
292 : }
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