4 * RIPEMD-320 - RACE Integrity Primitives Evaluation Message Digest.
6 * Based on the reference implementation by Antoon Bosselaers, ESAT-COSIC
8 * Copyright (c) 2008 Adrian-Ken Rueegsegger <rueegsegger (at) swiss-it.ch>
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)
16 #include <crypto/internal/hash.h>
17 #include <linux/init.h>
18 #include <linux/module.h>
20 #include <linux/types.h>
21 #include <asm/byteorder.h>
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))
48 #define ROUND(a, b, c, d, e, f, k, x, s) { \
49 (a) += f((b), (c), (d)) + le32_to_cpup(&(x)) + (k); \
50 (a) = rol32((a), (s)) + (e); \
51 (c) = rol32((c), 10); \
54 static void rmd320_transform(u32
*state
, const __le32
*in
)
56 u32 aa
, bb
, cc
, dd
, ee
, aaa
, bbb
, ccc
, ddd
, eee
, tmp
;
58 /* Initialize left lane */
65 /* Initialize right lane */
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);
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);
108 /* Swap contents of "a" registers */
109 tmp
= aa
; aa
= aaa
; aaa
= tmp
;
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);
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);
147 /* Swap contents of "b" registers */
148 tmp
= bb
; bb
= bbb
; bbb
= tmp
;
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);
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);
186 /* Swap contents of "c" registers */
187 tmp
= cc
; cc
= ccc
; ccc
= tmp
;
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);
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);
225 /* Swap contents of "d" registers */
226 tmp
= dd
; dd
= ddd
; ddd
= tmp
;
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);
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);
264 /* Swap contents of "e" registers */
265 tmp
= ee
; ee
= eee
; eee
= tmp
;
267 /* combine results */
282 static int rmd320_init(struct shash_desc
*desc
)
284 struct rmd320_ctx
*rctx
= shash_desc_ctx(desc
);
286 rctx
->byte_count
= 0;
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
;
299 memset(rctx
->buffer
, 0, sizeof(rctx
->buffer
));
304 static int rmd320_update(struct shash_desc
*desc
, const u8
*data
,
307 struct rmd320_ctx
*rctx
= shash_desc_ctx(desc
);
308 const u32 avail
= sizeof(rctx
->buffer
) - (rctx
->byte_count
& 0x3f);
310 rctx
->byte_count
+= len
;
312 /* Enough space in buffer? If so copy and we're done */
314 memcpy((char *)rctx
->buffer
+ (sizeof(rctx
->buffer
) - avail
),
319 memcpy((char *)rctx
->buffer
+ (sizeof(rctx
->buffer
) - avail
),
322 rmd320_transform(rctx
->state
, rctx
->buffer
);
326 while (len
>= sizeof(rctx
->buffer
)) {
327 memcpy(rctx
->buffer
, data
, sizeof(rctx
->buffer
));
328 rmd320_transform(rctx
->state
, rctx
->buffer
);
329 data
+= sizeof(rctx
->buffer
);
330 len
-= sizeof(rctx
->buffer
);
333 memcpy(rctx
->buffer
, data
, len
);
339 /* Add padding and return the message digest. */
340 static int rmd320_final(struct shash_desc
*desc
, u8
*out
)
342 struct rmd320_ctx
*rctx
= shash_desc_ctx(desc
);
343 u32 i
, index
, padlen
;
345 __le32
*dst
= (__le32
*)out
;
346 static const u8 padding
[64] = { 0x80, };
348 bits
= cpu_to_le64(rctx
->byte_count
<< 3);
350 /* Pad out to 56 mod 64 */
351 index
= rctx
->byte_count
& 0x3f;
352 padlen
= (index
< 56) ? (56 - index
) : ((64+56) - index
);
353 rmd320_update(desc
, padding
, padlen
);
356 rmd320_update(desc
, (const u8
*)&bits
, sizeof(bits
));
358 /* Store state in digest */
359 for (i
= 0; i
< 10; i
++)
360 dst
[i
] = cpu_to_le32p(&rctx
->state
[i
]);
363 memset(rctx
, 0, sizeof(*rctx
));
368 static struct shash_alg alg
= {
369 .digestsize
= RMD320_DIGEST_SIZE
,
371 .update
= rmd320_update
,
372 .final
= rmd320_final
,
373 .descsize
= sizeof(struct rmd320_ctx
),
375 .cra_name
= "rmd320",
376 .cra_flags
= CRYPTO_ALG_TYPE_SHASH
,
377 .cra_blocksize
= RMD320_BLOCK_SIZE
,
378 .cra_module
= THIS_MODULE
,
382 static int __init
rmd320_mod_init(void)
384 return crypto_register_shash(&alg
);
387 static void __exit
rmd320_mod_fini(void)
389 crypto_unregister_shash(&alg
);
392 module_init(rmd320_mod_init
);
393 module_exit(rmd320_mod_fini
);
395 MODULE_LICENSE("GPL");
396 MODULE_DESCRIPTION("RIPEMD-320 Message Digest");
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