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Commit | Line | Data |
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c555c28d AKR |
1 | /* |
2 | * Cryptographic API. | |
3 | * | |
4 | * RIPEMD-320 - RACE Integrity Primitives Evaluation Message Digest. | |
5 | * | |
6 | * Based on the reference implementation by Antoon Bosselaers, ESAT-COSIC | |
7 | * | |
3181c225 | 8 | * Copyright (c) 2008 Adrian-Ken Rueegsegger <ken@codelabs.ch> |
c555c28d AKR |
9 | * |
10 | * This program is free software; you can redistribute it and/or modify it | |
11 | * under the terms of the GNU General Public License as published by the Free | |
12 | * Software Foundation; either version 2 of the License, or (at your option) | |
13 | * any later version. | |
14 | * | |
15 | */ | |
3b8efb4c | 16 | #include <crypto/internal/hash.h> |
c555c28d AKR |
17 | #include <linux/init.h> |
18 | #include <linux/module.h> | |
19 | #include <linux/mm.h> | |
c555c28d AKR |
20 | #include <linux/types.h> |
21 | #include <asm/byteorder.h> | |
22 | ||
23 | #include "ripemd.h" | |
24 | ||
25 | struct rmd320_ctx { | |
26 | u64 byte_count; | |
27 | u32 state[10]; | |
caee1688 | 28 | __le32 buffer[16]; |
c555c28d AKR |
29 | }; |
30 | ||
31 | #define K1 RMD_K1 | |
32 | #define K2 RMD_K2 | |
33 | #define K3 RMD_K3 | |
34 | #define K4 RMD_K4 | |
35 | #define K5 RMD_K5 | |
36 | #define KK1 RMD_K6 | |
37 | #define KK2 RMD_K7 | |
38 | #define KK3 RMD_K8 | |
39 | #define KK4 RMD_K9 | |
40 | #define KK5 RMD_K1 | |
41 | ||
42 | #define F1(x, y, z) (x ^ y ^ z) /* XOR */ | |
43 | #define F2(x, y, z) (z ^ (x & (y ^ z))) /* x ? y : z */ | |
44 | #define F3(x, y, z) ((x | ~y) ^ z) | |
45 | #define F4(x, y, z) (y ^ (z & (x ^ y))) /* z ? x : y */ | |
46 | #define F5(x, y, z) (x ^ (y | ~z)) | |
47 | ||
48 | #define ROUND(a, b, c, d, e, f, k, x, s) { \ | |
5cdcc22f | 49 | (a) += f((b), (c), (d)) + le32_to_cpup(&(x)) + (k); \ |
c555c28d AKR |
50 | (a) = rol32((a), (s)) + (e); \ |
51 | (c) = rol32((c), 10); \ | |
52 | } | |
53 | ||
caee1688 | 54 | static void rmd320_transform(u32 *state, const __le32 *in) |
c555c28d AKR |
55 | { |
56 | u32 aa, bb, cc, dd, ee, aaa, bbb, ccc, ddd, eee, tmp; | |
57 | ||
58 | /* Initialize left lane */ | |
59 | aa = state[0]; | |
60 | bb = state[1]; | |
61 | cc = state[2]; | |
62 | dd = state[3]; | |
63 | ee = state[4]; | |
64 | ||
65 | /* Initialize right lane */ | |
66 | aaa = state[5]; | |
67 | bbb = state[6]; | |
68 | ccc = state[7]; | |
69 | ddd = state[8]; | |
70 | eee = state[9]; | |
71 | ||
72 | /* round 1: left lane */ | |
73 | ROUND(aa, bb, cc, dd, ee, F1, K1, in[0], 11); | |
74 | ROUND(ee, aa, bb, cc, dd, F1, K1, in[1], 14); | |
75 | ROUND(dd, ee, aa, bb, cc, F1, K1, in[2], 15); | |
76 | ROUND(cc, dd, ee, aa, bb, F1, K1, in[3], 12); | |
77 | ROUND(bb, cc, dd, ee, aa, F1, K1, in[4], 5); | |
78 | ROUND(aa, bb, cc, dd, ee, F1, K1, in[5], 8); | |
79 | ROUND(ee, aa, bb, cc, dd, F1, K1, in[6], 7); | |
80 | ROUND(dd, ee, aa, bb, cc, F1, K1, in[7], 9); | |
81 | ROUND(cc, dd, ee, aa, bb, F1, K1, in[8], 11); | |
82 | ROUND(bb, cc, dd, ee, aa, F1, K1, in[9], 13); | |
83 | ROUND(aa, bb, cc, dd, ee, F1, K1, in[10], 14); | |
84 | ROUND(ee, aa, bb, cc, dd, F1, K1, in[11], 15); | |
85 | ROUND(dd, ee, aa, bb, cc, F1, K1, in[12], 6); | |
86 | ROUND(cc, dd, ee, aa, bb, F1, K1, in[13], 7); | |
87 | ROUND(bb, cc, dd, ee, aa, F1, K1, in[14], 9); | |
88 | ROUND(aa, bb, cc, dd, ee, F1, K1, in[15], 8); | |
89 | ||
90 | /* round 1: right lane */ | |
91 | ROUND(aaa, bbb, ccc, ddd, eee, F5, KK1, in[5], 8); | |
92 | ROUND(eee, aaa, bbb, ccc, ddd, F5, KK1, in[14], 9); | |
93 | ROUND(ddd, eee, aaa, bbb, ccc, F5, KK1, in[7], 9); | |
94 | ROUND(ccc, ddd, eee, aaa, bbb, F5, KK1, in[0], 11); | |
95 | ROUND(bbb, ccc, ddd, eee, aaa, F5, KK1, in[9], 13); | |
96 | ROUND(aaa, bbb, ccc, ddd, eee, F5, KK1, in[2], 15); | |
97 | ROUND(eee, aaa, bbb, ccc, ddd, F5, KK1, in[11], 15); | |
98 | ROUND(ddd, eee, aaa, bbb, ccc, F5, KK1, in[4], 5); | |
99 | ROUND(ccc, ddd, eee, aaa, bbb, F5, KK1, in[13], 7); | |
100 | ROUND(bbb, ccc, ddd, eee, aaa, F5, KK1, in[6], 7); | |
101 | ROUND(aaa, bbb, ccc, ddd, eee, F5, KK1, in[15], 8); | |
102 | ROUND(eee, aaa, bbb, ccc, ddd, F5, KK1, in[8], 11); | |
103 | ROUND(ddd, eee, aaa, bbb, ccc, F5, KK1, in[1], 14); | |
104 | ROUND(ccc, ddd, eee, aaa, bbb, F5, KK1, in[10], 14); | |
105 | ROUND(bbb, ccc, ddd, eee, aaa, F5, KK1, in[3], 12); | |
106 | ROUND(aaa, bbb, ccc, ddd, eee, F5, KK1, in[12], 6); | |
107 | ||
108 | /* Swap contents of "a" registers */ | |
109 | tmp = aa; aa = aaa; aaa = tmp; | |
110 | ||
111 | /* round 2: left lane" */ | |
112 | ROUND(ee, aa, bb, cc, dd, F2, K2, in[7], 7); | |
113 | ROUND(dd, ee, aa, bb, cc, F2, K2, in[4], 6); | |
114 | ROUND(cc, dd, ee, aa, bb, F2, K2, in[13], 8); | |
115 | ROUND(bb, cc, dd, ee, aa, F2, K2, in[1], 13); | |
116 | ROUND(aa, bb, cc, dd, ee, F2, K2, in[10], 11); | |
117 | ROUND(ee, aa, bb, cc, dd, F2, K2, in[6], 9); | |
118 | ROUND(dd, ee, aa, bb, cc, F2, K2, in[15], 7); | |
119 | ROUND(cc, dd, ee, aa, bb, F2, K2, in[3], 15); | |
120 | ROUND(bb, cc, dd, ee, aa, F2, K2, in[12], 7); | |
121 | ROUND(aa, bb, cc, dd, ee, F2, K2, in[0], 12); | |
122 | ROUND(ee, aa, bb, cc, dd, F2, K2, in[9], 15); | |
123 | ROUND(dd, ee, aa, bb, cc, F2, K2, in[5], 9); | |
124 | ROUND(cc, dd, ee, aa, bb, F2, K2, in[2], 11); | |
125 | ROUND(bb, cc, dd, ee, aa, F2, K2, in[14], 7); | |
126 | ROUND(aa, bb, cc, dd, ee, F2, K2, in[11], 13); | |
127 | ROUND(ee, aa, bb, cc, dd, F2, K2, in[8], 12); | |
128 | ||
129 | /* round 2: right lane */ | |
130 | ROUND(eee, aaa, bbb, ccc, ddd, F4, KK2, in[6], 9); | |
131 | ROUND(ddd, eee, aaa, bbb, ccc, F4, KK2, in[11], 13); | |
132 | ROUND(ccc, ddd, eee, aaa, bbb, F4, KK2, in[3], 15); | |
133 | ROUND(bbb, ccc, ddd, eee, aaa, F4, KK2, in[7], 7); | |
134 | ROUND(aaa, bbb, ccc, ddd, eee, F4, KK2, in[0], 12); | |
135 | ROUND(eee, aaa, bbb, ccc, ddd, F4, KK2, in[13], 8); | |
136 | ROUND(ddd, eee, aaa, bbb, ccc, F4, KK2, in[5], 9); | |
137 | ROUND(ccc, ddd, eee, aaa, bbb, F4, KK2, in[10], 11); | |
138 | ROUND(bbb, ccc, ddd, eee, aaa, F4, KK2, in[14], 7); | |
139 | ROUND(aaa, bbb, ccc, ddd, eee, F4, KK2, in[15], 7); | |
140 | ROUND(eee, aaa, bbb, ccc, ddd, F4, KK2, in[8], 12); | |
141 | ROUND(ddd, eee, aaa, bbb, ccc, F4, KK2, in[12], 7); | |
142 | ROUND(ccc, ddd, eee, aaa, bbb, F4, KK2, in[4], 6); | |
143 | ROUND(bbb, ccc, ddd, eee, aaa, F4, KK2, in[9], 15); | |
144 | ROUND(aaa, bbb, ccc, ddd, eee, F4, KK2, in[1], 13); | |
145 | ROUND(eee, aaa, bbb, ccc, ddd, F4, KK2, in[2], 11); | |
146 | ||
147 | /* Swap contents of "b" registers */ | |
148 | tmp = bb; bb = bbb; bbb = tmp; | |
149 | ||
150 | /* round 3: left lane" */ | |
151 | ROUND(dd, ee, aa, bb, cc, F3, K3, in[3], 11); | |
152 | ROUND(cc, dd, ee, aa, bb, F3, K3, in[10], 13); | |
153 | ROUND(bb, cc, dd, ee, aa, F3, K3, in[14], 6); | |
154 | ROUND(aa, bb, cc, dd, ee, F3, K3, in[4], 7); | |
155 | ROUND(ee, aa, bb, cc, dd, F3, K3, in[9], 14); | |
156 | ROUND(dd, ee, aa, bb, cc, F3, K3, in[15], 9); | |
157 | ROUND(cc, dd, ee, aa, bb, F3, K3, in[8], 13); | |
158 | ROUND(bb, cc, dd, ee, aa, F3, K3, in[1], 15); | |
159 | ROUND(aa, bb, cc, dd, ee, F3, K3, in[2], 14); | |
160 | ROUND(ee, aa, bb, cc, dd, F3, K3, in[7], 8); | |
161 | ROUND(dd, ee, aa, bb, cc, F3, K3, in[0], 13); | |
162 | ROUND(cc, dd, ee, aa, bb, F3, K3, in[6], 6); | |
163 | ROUND(bb, cc, dd, ee, aa, F3, K3, in[13], 5); | |
164 | ROUND(aa, bb, cc, dd, ee, F3, K3, in[11], 12); | |
165 | ROUND(ee, aa, bb, cc, dd, F3, K3, in[5], 7); | |
166 | ROUND(dd, ee, aa, bb, cc, F3, K3, in[12], 5); | |
167 | ||
168 | /* round 3: right lane */ | |
169 | ROUND(ddd, eee, aaa, bbb, ccc, F3, KK3, in[15], 9); | |
170 | ROUND(ccc, ddd, eee, aaa, bbb, F3, KK3, in[5], 7); | |
171 | ROUND(bbb, ccc, ddd, eee, aaa, F3, KK3, in[1], 15); | |
172 | ROUND(aaa, bbb, ccc, ddd, eee, F3, KK3, in[3], 11); | |
173 | ROUND(eee, aaa, bbb, ccc, ddd, F3, KK3, in[7], 8); | |
174 | ROUND(ddd, eee, aaa, bbb, ccc, F3, KK3, in[14], 6); | |
175 | ROUND(ccc, ddd, eee, aaa, bbb, F3, KK3, in[6], 6); | |
176 | ROUND(bbb, ccc, ddd, eee, aaa, F3, KK3, in[9], 14); | |
177 | ROUND(aaa, bbb, ccc, ddd, eee, F3, KK3, in[11], 12); | |
178 | ROUND(eee, aaa, bbb, ccc, ddd, F3, KK3, in[8], 13); | |
179 | ROUND(ddd, eee, aaa, bbb, ccc, F3, KK3, in[12], 5); | |
180 | ROUND(ccc, ddd, eee, aaa, bbb, F3, KK3, in[2], 14); | |
181 | ROUND(bbb, ccc, ddd, eee, aaa, F3, KK3, in[10], 13); | |
182 | ROUND(aaa, bbb, ccc, ddd, eee, F3, KK3, in[0], 13); | |
183 | ROUND(eee, aaa, bbb, ccc, ddd, F3, KK3, in[4], 7); | |
184 | ROUND(ddd, eee, aaa, bbb, ccc, F3, KK3, in[13], 5); | |
185 | ||
186 | /* Swap contents of "c" registers */ | |
187 | tmp = cc; cc = ccc; ccc = tmp; | |
188 | ||
189 | /* round 4: left lane" */ | |
190 | ROUND(cc, dd, ee, aa, bb, F4, K4, in[1], 11); | |
191 | ROUND(bb, cc, dd, ee, aa, F4, K4, in[9], 12); | |
192 | ROUND(aa, bb, cc, dd, ee, F4, K4, in[11], 14); | |
193 | ROUND(ee, aa, bb, cc, dd, F4, K4, in[10], 15); | |
194 | ROUND(dd, ee, aa, bb, cc, F4, K4, in[0], 14); | |
195 | ROUND(cc, dd, ee, aa, bb, F4, K4, in[8], 15); | |
196 | ROUND(bb, cc, dd, ee, aa, F4, K4, in[12], 9); | |
197 | ROUND(aa, bb, cc, dd, ee, F4, K4, in[4], 8); | |
198 | ROUND(ee, aa, bb, cc, dd, F4, K4, in[13], 9); | |
199 | ROUND(dd, ee, aa, bb, cc, F4, K4, in[3], 14); | |
200 | ROUND(cc, dd, ee, aa, bb, F4, K4, in[7], 5); | |
201 | ROUND(bb, cc, dd, ee, aa, F4, K4, in[15], 6); | |
202 | ROUND(aa, bb, cc, dd, ee, F4, K4, in[14], 8); | |
203 | ROUND(ee, aa, bb, cc, dd, F4, K4, in[5], 6); | |
204 | ROUND(dd, ee, aa, bb, cc, F4, K4, in[6], 5); | |
205 | ROUND(cc, dd, ee, aa, bb, F4, K4, in[2], 12); | |
206 | ||
207 | /* round 4: right lane */ | |
208 | ROUND(ccc, ddd, eee, aaa, bbb, F2, KK4, in[8], 15); | |
209 | ROUND(bbb, ccc, ddd, eee, aaa, F2, KK4, in[6], 5); | |
210 | ROUND(aaa, bbb, ccc, ddd, eee, F2, KK4, in[4], 8); | |
211 | ROUND(eee, aaa, bbb, ccc, ddd, F2, KK4, in[1], 11); | |
212 | ROUND(ddd, eee, aaa, bbb, ccc, F2, KK4, in[3], 14); | |
213 | ROUND(ccc, ddd, eee, aaa, bbb, F2, KK4, in[11], 14); | |
214 | ROUND(bbb, ccc, ddd, eee, aaa, F2, KK4, in[15], 6); | |
215 | ROUND(aaa, bbb, ccc, ddd, eee, F2, KK4, in[0], 14); | |
216 | ROUND(eee, aaa, bbb, ccc, ddd, F2, KK4, in[5], 6); | |
217 | ROUND(ddd, eee, aaa, bbb, ccc, F2, KK4, in[12], 9); | |
218 | ROUND(ccc, ddd, eee, aaa, bbb, F2, KK4, in[2], 12); | |
219 | ROUND(bbb, ccc, ddd, eee, aaa, F2, KK4, in[13], 9); | |
220 | ROUND(aaa, bbb, ccc, ddd, eee, F2, KK4, in[9], 12); | |
221 | ROUND(eee, aaa, bbb, ccc, ddd, F2, KK4, in[7], 5); | |
222 | ROUND(ddd, eee, aaa, bbb, ccc, F2, KK4, in[10], 15); | |
223 | ROUND(ccc, ddd, eee, aaa, bbb, F2, KK4, in[14], 8); | |
224 | ||
225 | /* Swap contents of "d" registers */ | |
226 | tmp = dd; dd = ddd; ddd = tmp; | |
227 | ||
228 | /* round 5: left lane" */ | |
229 | ROUND(bb, cc, dd, ee, aa, F5, K5, in[4], 9); | |
230 | ROUND(aa, bb, cc, dd, ee, F5, K5, in[0], 15); | |
231 | ROUND(ee, aa, bb, cc, dd, F5, K5, in[5], 5); | |
232 | ROUND(dd, ee, aa, bb, cc, F5, K5, in[9], 11); | |
233 | ROUND(cc, dd, ee, aa, bb, F5, K5, in[7], 6); | |
234 | ROUND(bb, cc, dd, ee, aa, F5, K5, in[12], 8); | |
235 | ROUND(aa, bb, cc, dd, ee, F5, K5, in[2], 13); | |
236 | ROUND(ee, aa, bb, cc, dd, F5, K5, in[10], 12); | |
237 | ROUND(dd, ee, aa, bb, cc, F5, K5, in[14], 5); | |
238 | ROUND(cc, dd, ee, aa, bb, F5, K5, in[1], 12); | |
239 | ROUND(bb, cc, dd, ee, aa, F5, K5, in[3], 13); | |
240 | ROUND(aa, bb, cc, dd, ee, F5, K5, in[8], 14); | |
241 | ROUND(ee, aa, bb, cc, dd, F5, K5, in[11], 11); | |
242 | ROUND(dd, ee, aa, bb, cc, F5, K5, in[6], 8); | |
243 | ROUND(cc, dd, ee, aa, bb, F5, K5, in[15], 5); | |
244 | ROUND(bb, cc, dd, ee, aa, F5, K5, in[13], 6); | |
245 | ||
246 | /* round 5: right lane */ | |
247 | ROUND(bbb, ccc, ddd, eee, aaa, F1, KK5, in[12], 8); | |
248 | ROUND(aaa, bbb, ccc, ddd, eee, F1, KK5, in[15], 5); | |
249 | ROUND(eee, aaa, bbb, ccc, ddd, F1, KK5, in[10], 12); | |
250 | ROUND(ddd, eee, aaa, bbb, ccc, F1, KK5, in[4], 9); | |
251 | ROUND(ccc, ddd, eee, aaa, bbb, F1, KK5, in[1], 12); | |
252 | ROUND(bbb, ccc, ddd, eee, aaa, F1, KK5, in[5], 5); | |
253 | ROUND(aaa, bbb, ccc, ddd, eee, F1, KK5, in[8], 14); | |
254 | ROUND(eee, aaa, bbb, ccc, ddd, F1, KK5, in[7], 6); | |
255 | ROUND(ddd, eee, aaa, bbb, ccc, F1, KK5, in[6], 8); | |
256 | ROUND(ccc, ddd, eee, aaa, bbb, F1, KK5, in[2], 13); | |
257 | ROUND(bbb, ccc, ddd, eee, aaa, F1, KK5, in[13], 6); | |
258 | ROUND(aaa, bbb, ccc, ddd, eee, F1, KK5, in[14], 5); | |
259 | ROUND(eee, aaa, bbb, ccc, ddd, F1, KK5, in[0], 15); | |
260 | ROUND(ddd, eee, aaa, bbb, ccc, F1, KK5, in[3], 13); | |
261 | ROUND(ccc, ddd, eee, aaa, bbb, F1, KK5, in[9], 11); | |
262 | ROUND(bbb, ccc, ddd, eee, aaa, F1, KK5, in[11], 11); | |
263 | ||
264 | /* Swap contents of "e" registers */ | |
265 | tmp = ee; ee = eee; eee = tmp; | |
266 | ||
267 | /* combine results */ | |
268 | state[0] += aa; | |
269 | state[1] += bb; | |
270 | state[2] += cc; | |
271 | state[3] += dd; | |
272 | state[4] += ee; | |
273 | state[5] += aaa; | |
274 | state[6] += bbb; | |
275 | state[7] += ccc; | |
276 | state[8] += ddd; | |
277 | state[9] += eee; | |
278 | ||
279 | return; | |
280 | } | |
281 | ||
3b8efb4c | 282 | static int rmd320_init(struct shash_desc *desc) |
c555c28d | 283 | { |
3b8efb4c | 284 | struct rmd320_ctx *rctx = shash_desc_ctx(desc); |
c555c28d AKR |
285 | |
286 | rctx->byte_count = 0; | |
287 | ||
288 | rctx->state[0] = RMD_H0; | |
289 | rctx->state[1] = RMD_H1; | |
290 | rctx->state[2] = RMD_H2; | |
291 | rctx->state[3] = RMD_H3; | |
292 | rctx->state[4] = RMD_H4; | |
293 | rctx->state[5] = RMD_H5; | |
294 | rctx->state[6] = RMD_H6; | |
295 | rctx->state[7] = RMD_H7; | |
296 | rctx->state[8] = RMD_H8; | |
297 | rctx->state[9] = RMD_H9; | |
298 | ||
299 | memset(rctx->buffer, 0, sizeof(rctx->buffer)); | |
3b8efb4c HX |
300 | |
301 | return 0; | |
c555c28d AKR |
302 | } |
303 | ||
3b8efb4c HX |
304 | static int rmd320_update(struct shash_desc *desc, const u8 *data, |
305 | unsigned int len) | |
c555c28d | 306 | { |
3b8efb4c | 307 | struct rmd320_ctx *rctx = shash_desc_ctx(desc); |
c555c28d AKR |
308 | const u32 avail = sizeof(rctx->buffer) - (rctx->byte_count & 0x3f); |
309 | ||
310 | rctx->byte_count += len; | |
311 | ||
312 | /* Enough space in buffer? If so copy and we're done */ | |
313 | if (avail > len) { | |
314 | memcpy((char *)rctx->buffer + (sizeof(rctx->buffer) - avail), | |
315 | data, len); | |
3b8efb4c | 316 | goto out; |
c555c28d AKR |
317 | } |
318 | ||
319 | memcpy((char *)rctx->buffer + (sizeof(rctx->buffer) - avail), | |
320 | data, avail); | |
321 | ||
feedfdaa | 322 | rmd320_transform(rctx->state, rctx->buffer); |
c555c28d AKR |
323 | data += avail; |
324 | len -= avail; | |
325 | ||
326 | while (len >= sizeof(rctx->buffer)) { | |
327 | memcpy(rctx->buffer, data, sizeof(rctx->buffer)); | |
feedfdaa | 328 | rmd320_transform(rctx->state, rctx->buffer); |
c555c28d AKR |
329 | data += sizeof(rctx->buffer); |
330 | len -= sizeof(rctx->buffer); | |
331 | } | |
332 | ||
333 | memcpy(rctx->buffer, data, len); | |
3b8efb4c HX |
334 | |
335 | out: | |
336 | return 0; | |
c555c28d AKR |
337 | } |
338 | ||
339 | /* Add padding and return the message digest. */ | |
3b8efb4c | 340 | static int rmd320_final(struct shash_desc *desc, u8 *out) |
c555c28d | 341 | { |
3b8efb4c | 342 | struct rmd320_ctx *rctx = shash_desc_ctx(desc); |
feedfdaa | 343 | u32 i, index, padlen; |
caee1688 HH |
344 | __le64 bits; |
345 | __le32 *dst = (__le32 *)out; | |
c555c28d | 346 | static const u8 padding[64] = { 0x80, }; |
feedfdaa AKR |
347 | |
348 | bits = cpu_to_le64(rctx->byte_count << 3); | |
c555c28d AKR |
349 | |
350 | /* Pad out to 56 mod 64 */ | |
351 | index = rctx->byte_count & 0x3f; | |
352 | padlen = (index < 56) ? (56 - index) : ((64+56) - index); | |
3b8efb4c | 353 | rmd320_update(desc, padding, padlen); |
c555c28d AKR |
354 | |
355 | /* Append length */ | |
3b8efb4c | 356 | rmd320_update(desc, (const u8 *)&bits, sizeof(bits)); |
c555c28d AKR |
357 | |
358 | /* Store state in digest */ | |
feedfdaa | 359 | for (i = 0; i < 10; i++) |
5cdcc22f | 360 | dst[i] = cpu_to_le32p(&rctx->state[i]); |
c555c28d AKR |
361 | |
362 | /* Wipe context */ | |
363 | memset(rctx, 0, sizeof(*rctx)); | |
3b8efb4c HX |
364 | |
365 | return 0; | |
c555c28d AKR |
366 | } |
367 | ||
3b8efb4c HX |
368 | static struct shash_alg alg = { |
369 | .digestsize = RMD320_DIGEST_SIZE, | |
370 | .init = rmd320_init, | |
371 | .update = rmd320_update, | |
372 | .final = rmd320_final, | |
373 | .descsize = sizeof(struct rmd320_ctx), | |
374 | .base = { | |
375 | .cra_name = "rmd320", | |
376 | .cra_flags = CRYPTO_ALG_TYPE_SHASH, | |
377 | .cra_blocksize = RMD320_BLOCK_SIZE, | |
378 | .cra_module = THIS_MODULE, | |
379 | } | |
c555c28d AKR |
380 | }; |
381 | ||
382 | static int __init rmd320_mod_init(void) | |
383 | { | |
3b8efb4c | 384 | return crypto_register_shash(&alg); |
c555c28d AKR |
385 | } |
386 | ||
387 | static void __exit rmd320_mod_fini(void) | |
388 | { | |
3b8efb4c | 389 | crypto_unregister_shash(&alg); |
c555c28d AKR |
390 | } |
391 | ||
392 | module_init(rmd320_mod_init); | |
393 | module_exit(rmd320_mod_fini); | |
394 | ||
395 | MODULE_LICENSE("GPL"); | |
3181c225 | 396 | MODULE_AUTHOR("Adrian-Ken Rueegsegger <ken@codelabs.ch>"); |
c555c28d | 397 | MODULE_DESCRIPTION("RIPEMD-320 Message Digest"); |
5d26a105 | 398 | MODULE_ALIAS_CRYPTO("rmd320"); |