3 * $Id: rmd320.c,v 1.2 2004/04/08 01:36:15 mdw Exp $
5 * The RIPEMD-320 message digest function
7 * (c) 1998 Straylight/Edgeware
10 /*----- Licensing notice --------------------------------------------------*
12 * This file is part of Catacomb.
14 * Catacomb is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU Library General Public License as
16 * published by the Free Software Foundation; either version 2 of the
17 * License, or (at your option) any later version.
19 * Catacomb is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU Library General Public License for more details.
24 * You should have received a copy of the GNU Library General Public
25 * License along with Catacomb; if not, write to the Free
26 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
30 /*----- Header files ------------------------------------------------------*/
32 #include <mLib/bits.h>
35 #include "ghash-def.h"
39 /*----- Main code ---------------------------------------------------------*/
41 /* --- @rmd320_compress@ --- *
43 * Arguments: @rmd320_ctx *ctx@ = pointer to context block
44 * @const void *sbuf@ = pointer to buffer of appropriate size
48 * Use: RIPEMD-320 compression function.
51 void rmd320_compress(rmd320_ctx
*ctx
, const void *sbuf
)
57 /* --- Fetch the chaining variables --- */
71 /* --- Fetch the buffer contents --- */
77 for (i
= 0, p
= sbuf
; i
< 16; i
++, p
+= 4)
81 /* --- Definitions for round functions --- */
83 #define F(x, y, z) ((x) ^ (y) ^ (z))
84 #define G(x, y, z) (((x) & (y)) | (~(x) & (z)))
85 #define H(x, y, z) (((x) | ~(y)) ^ (z))
86 #define I(x, y, z) (((x) & (z)) | ((y) & ~(z)))
87 #define J(x, y, z) ((x) ^ ((y) | ~(z)))
89 #define T(v, w, x, y, z, i, r, f, k) do { \
90 uint32 _t = v + f(w, x, y) + buf[i] + k; \
91 v = ROL32(_t, r) + z; x = ROL32(x, 10); \
94 #define F1(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, F, 0x00000000)
95 #define G1(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, G, 0x5a827999)
96 #define H1(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, H, 0x6ed9eba1)
97 #define I1(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, I, 0x8f1bbcdc)
98 #define J1(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, J, 0xa953fd4e)
100 #define F2(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, J, 0x50a28be6)
101 #define G2(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, I, 0x5c4dd124)
102 #define H2(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, H, 0x6d703ef3)
103 #define I2(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, G, 0x7a6d76e9)
104 #define J2(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, F, 0x00000000)
106 /* --- We must do both lines together --- */
108 F1(a
, b
, c
, d
, e
, 0, 11);
109 F1(e
, a
, b
, c
, d
, 1, 14);
110 F1(d
, e
, a
, b
, c
, 2, 15);
111 F1(c
, d
, e
, a
, b
, 3, 12);
112 F1(b
, c
, d
, e
, a
, 4, 5);
113 F1(a
, b
, c
, d
, e
, 5, 8);
114 F1(e
, a
, b
, c
, d
, 6, 7);
115 F1(d
, e
, a
, b
, c
, 7, 9);
116 F1(c
, d
, e
, a
, b
, 8, 11);
117 F1(b
, c
, d
, e
, a
, 9, 13);
118 F1(a
, b
, c
, d
, e
, 10, 14);
119 F1(e
, a
, b
, c
, d
, 11, 15);
120 F1(d
, e
, a
, b
, c
, 12, 6);
121 F1(c
, d
, e
, a
, b
, 13, 7);
122 F1(b
, c
, d
, e
, a
, 14, 9);
123 F1(a
, b
, c
, d
, e
, 15, 8);
125 F2(A
, B
, C
, D
, E
, 5, 8);
126 F2(E
, A
, B
, C
, D
, 14, 9);
127 F2(D
, E
, A
, B
, C
, 7, 9);
128 F2(C
, D
, E
, A
, B
, 0, 11);
129 F2(B
, C
, D
, E
, A
, 9, 13);
130 F2(A
, B
, C
, D
, E
, 2, 15);
131 F2(E
, A
, B
, C
, D
, 11, 15);
132 F2(D
, E
, A
, B
, C
, 4, 5);
133 F2(C
, D
, E
, A
, B
, 13, 7);
134 F2(B
, C
, D
, E
, A
, 6, 7);
135 F2(A
, B
, C
, D
, E
, 15, 8);
136 F2(E
, A
, B
, C
, D
, 8, 11);
137 F2(D
, E
, A
, B
, C
, 1, 14);
138 F2(C
, D
, E
, A
, B
, 10, 14);
139 F2(B
, C
, D
, E
, A
, 3, 12);
140 F2(A
, B
, C
, D
, E
, 12, 6);
142 G1(e
, A
, b
, c
, d
, 7, 7);
143 G1(d
, e
, A
, b
, c
, 4, 6);
144 G1(c
, d
, e
, A
, b
, 13, 8);
145 G1(b
, c
, d
, e
, A
, 1, 13);
146 G1(A
, b
, c
, d
, e
, 10, 11);
147 G1(e
, A
, b
, c
, d
, 6, 9);
148 G1(d
, e
, A
, b
, c
, 15, 7);
149 G1(c
, d
, e
, A
, b
, 3, 15);
150 G1(b
, c
, d
, e
, A
, 12, 7);
151 G1(A
, b
, c
, d
, e
, 0, 12);
152 G1(e
, A
, b
, c
, d
, 9, 15);
153 G1(d
, e
, A
, b
, c
, 5, 9);
154 G1(c
, d
, e
, A
, b
, 2, 11);
155 G1(b
, c
, d
, e
, A
, 14, 7);
156 G1(A
, b
, c
, d
, e
, 11, 13);
157 G1(e
, A
, b
, c
, d
, 8, 12);
159 G2(E
, a
, B
, C
, D
, 6, 9);
160 G2(D
, E
, a
, B
, C
, 11, 13);
161 G2(C
, D
, E
, a
, B
, 3, 15);
162 G2(B
, C
, D
, E
, a
, 7, 7);
163 G2(a
, B
, C
, D
, E
, 0, 12);
164 G2(E
, a
, B
, C
, D
, 13, 8);
165 G2(D
, E
, a
, B
, C
, 5, 9);
166 G2(C
, D
, E
, a
, B
, 10, 11);
167 G2(B
, C
, D
, E
, a
, 14, 7);
168 G2(a
, B
, C
, D
, E
, 15, 7);
169 G2(E
, a
, B
, C
, D
, 8, 12);
170 G2(D
, E
, a
, B
, C
, 12, 7);
171 G2(C
, D
, E
, a
, B
, 4, 6);
172 G2(B
, C
, D
, E
, a
, 9, 15);
173 G2(a
, B
, C
, D
, E
, 1, 13);
174 G2(E
, a
, B
, C
, D
, 2, 11);
176 H1(d
, e
, A
, B
, c
, 3, 11);
177 H1(c
, d
, e
, A
, B
, 10, 13);
178 H1(B
, c
, d
, e
, A
, 14, 6);
179 H1(A
, B
, c
, d
, e
, 4, 7);
180 H1(e
, A
, B
, c
, d
, 9, 14);
181 H1(d
, e
, A
, B
, c
, 15, 9);
182 H1(c
, d
, e
, A
, B
, 8, 13);
183 H1(B
, c
, d
, e
, A
, 1, 15);
184 H1(A
, B
, c
, d
, e
, 2, 14);
185 H1(e
, A
, B
, c
, d
, 7, 8);
186 H1(d
, e
, A
, B
, c
, 0, 13);
187 H1(c
, d
, e
, A
, B
, 6, 6);
188 H1(B
, c
, d
, e
, A
, 13, 5);
189 H1(A
, B
, c
, d
, e
, 11, 12);
190 H1(e
, A
, B
, c
, d
, 5, 7);
191 H1(d
, e
, A
, B
, c
, 12, 5);
193 H2(D
, E
, a
, b
, C
, 15, 9);
194 H2(C
, D
, E
, a
, b
, 5, 7);
195 H2(b
, C
, D
, E
, a
, 1, 15);
196 H2(a
, b
, C
, D
, E
, 3, 11);
197 H2(E
, a
, b
, C
, D
, 7, 8);
198 H2(D
, E
, a
, b
, C
, 14, 6);
199 H2(C
, D
, E
, a
, b
, 6, 6);
200 H2(b
, C
, D
, E
, a
, 9, 14);
201 H2(a
, b
, C
, D
, E
, 11, 12);
202 H2(E
, a
, b
, C
, D
, 8, 13);
203 H2(D
, E
, a
, b
, C
, 12, 5);
204 H2(C
, D
, E
, a
, b
, 2, 14);
205 H2(b
, C
, D
, E
, a
, 10, 13);
206 H2(a
, b
, C
, D
, E
, 0, 13);
207 H2(E
, a
, b
, C
, D
, 4, 7);
208 H2(D
, E
, a
, b
, C
, 13, 5);
210 I1(C
, d
, e
, A
, B
, 1, 11);
211 I1(B
, C
, d
, e
, A
, 9, 12);
212 I1(A
, B
, C
, d
, e
, 11, 14);
213 I1(e
, A
, B
, C
, d
, 10, 15);
214 I1(d
, e
, A
, B
, C
, 0, 14);
215 I1(C
, d
, e
, A
, B
, 8, 15);
216 I1(B
, C
, d
, e
, A
, 12, 9);
217 I1(A
, B
, C
, d
, e
, 4, 8);
218 I1(e
, A
, B
, C
, d
, 13, 9);
219 I1(d
, e
, A
, B
, C
, 3, 14);
220 I1(C
, d
, e
, A
, B
, 7, 5);
221 I1(B
, C
, d
, e
, A
, 15, 6);
222 I1(A
, B
, C
, d
, e
, 14, 8);
223 I1(e
, A
, B
, C
, d
, 5, 6);
224 I1(d
, e
, A
, B
, C
, 6, 5);
225 I1(C
, d
, e
, A
, B
, 2, 12);
227 I2(c
, D
, E
, a
, b
, 8, 15);
228 I2(b
, c
, D
, E
, a
, 6, 5);
229 I2(a
, b
, c
, D
, E
, 4, 8);
230 I2(E
, a
, b
, c
, D
, 1, 11);
231 I2(D
, E
, a
, b
, c
, 3, 14);
232 I2(c
, D
, E
, a
, b
, 11, 14);
233 I2(b
, c
, D
, E
, a
, 15, 6);
234 I2(a
, b
, c
, D
, E
, 0, 14);
235 I2(E
, a
, b
, c
, D
, 5, 6);
236 I2(D
, E
, a
, b
, c
, 12, 9);
237 I2(c
, D
, E
, a
, b
, 2, 12);
238 I2(b
, c
, D
, E
, a
, 13, 9);
239 I2(a
, b
, c
, D
, E
, 9, 12);
240 I2(E
, a
, b
, c
, D
, 7, 5);
241 I2(D
, E
, a
, b
, c
, 10, 15);
242 I2(c
, D
, E
, a
, b
, 14, 8);
244 J1(B
, C
, D
, e
, A
, 4, 9);
245 J1(A
, B
, C
, D
, e
, 0, 15);
246 J1(e
, A
, B
, C
, D
, 5, 5);
247 J1(D
, e
, A
, B
, C
, 9, 11);
248 J1(C
, D
, e
, A
, B
, 7, 6);
249 J1(B
, C
, D
, e
, A
, 12, 8);
250 J1(A
, B
, C
, D
, e
, 2, 13);
251 J1(e
, A
, B
, C
, D
, 10, 12);
252 J1(D
, e
, A
, B
, C
, 14, 5);
253 J1(C
, D
, e
, A
, B
, 1, 12);
254 J1(B
, C
, D
, e
, A
, 3, 13);
255 J1(A
, B
, C
, D
, e
, 8, 14);
256 J1(e
, A
, B
, C
, D
, 11, 11);
257 J1(D
, e
, A
, B
, C
, 6, 8);
258 J1(C
, D
, e
, A
, B
, 15, 5);
259 J1(B
, C
, D
, e
, A
, 13, 6);
261 J2(b
, c
, d
, E
, a
, 12, 8);
262 J2(a
, b
, c
, d
, E
, 15, 5);
263 J2(E
, a
, b
, c
, d
, 10, 12);
264 J2(d
, E
, a
, b
, c
, 4, 9);
265 J2(c
, d
, E
, a
, b
, 1, 12);
266 J2(b
, c
, d
, E
, a
, 5, 5);
267 J2(a
, b
, c
, d
, E
, 8, 14);
268 J2(E
, a
, b
, c
, d
, 7, 6);
269 J2(d
, E
, a
, b
, c
, 6, 8);
270 J2(c
, d
, E
, a
, b
, 2, 13);
271 J2(b
, c
, d
, E
, a
, 13, 6);
272 J2(a
, b
, c
, d
, E
, 14, 5);
273 J2(E
, a
, b
, c
, d
, 0, 15);
274 J2(d
, E
, a
, b
, c
, 3, 13);
275 J2(c
, d
, E
, a
, b
, 9, 11);
276 J2(b
, c
, d
, E
, a
, 11, 11);
278 /* --- Write out the result --- */
292 /* --- @rmd320_init@ --- *
294 * Arguments: @rmd320_ctx *ctx@ = pointer to context block to initialize
298 * Use: Initializes a context block ready for hashing.
301 void rmd320_init(rmd320_ctx
*ctx
)
314 ctx
->nl
= ctx
->nh
= 0;
317 /* --- @rmd320_set@ --- *
319 * Arguments: @rmd320_ctx *ctx@ = pointer to context block
320 * @const void *buf@ = pointer to state buffer
321 * @unsigned long count@ = current count of bytes processed
325 * Use: Initializes a context block from a given state. This is
326 * useful in cases where the initial hash state is meant to be
327 * secret, e.g., for NMAC and HMAC support.
330 void rmd320_set(rmd320_ctx
*ctx
, const void *buf
, unsigned long count
)
332 const octet
*p
= buf
;
333 ctx
->a
= LOAD32_L(p
+ 0);
334 ctx
->b
= LOAD32_L(p
+ 4);
335 ctx
->c
= LOAD32_L(p
+ 8);
336 ctx
->d
= LOAD32_L(p
+ 12);
337 ctx
->e
= LOAD32_L(p
+ 16);
338 ctx
->A
= LOAD32_L(p
+ 20);
339 ctx
->B
= LOAD32_L(p
+ 24);
340 ctx
->C
= LOAD32_L(p
+ 28);
341 ctx
->D
= LOAD32_L(p
+ 32);
342 ctx
->E
= LOAD32_L(p
+ 36);
344 ctx
->nl
= U32(count
);
345 ctx
->nh
= U32(((count
& ~MASK32
) >> 16) >> 16);
348 /* --- @rmd320_hash@ --- *
350 * Arguments: @rmd320_ctx *ctx@ = pointer to context block
351 * @const void *buf@ = buffer of data to hash
352 * @size_t sz@ = size of buffer to hash
356 * Use: Hashes a buffer of data. The buffer may be of any size and
360 void rmd320_hash(rmd320_ctx
*ctx
, const void *buf
, size_t sz
)
362 HASH_BUFFER(RMD320
, rmd320
, ctx
, buf
, sz
);
365 /* --- @rmd320_done@ --- *
367 * Arguments: @rmd320_ctx *ctx@ = pointer to context block
368 * @void *hash@ = pointer to output buffer
372 * Use: Returns the hash of the data read so far.
375 void rmd320_done(rmd320_ctx
*ctx
, void *hash
)
378 HASH_MD5STRENGTH(RMD320
, rmd320
, ctx
);
379 STORE32_L(p
+ 0, ctx
->a
);
380 STORE32_L(p
+ 4, ctx
->b
);
381 STORE32_L(p
+ 8, ctx
->c
);
382 STORE32_L(p
+ 12, ctx
->d
);
383 STORE32_L(p
+ 16, ctx
->e
);
384 STORE32_L(p
+ 20, ctx
->A
);
385 STORE32_L(p
+ 24, ctx
->B
);
386 STORE32_L(p
+ 28, ctx
->C
);
387 STORE32_L(p
+ 32, ctx
->D
);
388 STORE32_L(p
+ 36, ctx
->E
);
391 /* --- @rmd320_state@ --- *
393 * Arguments: @rmd320_ctx *ctx@ = pointer to context
394 * @void *state@ = pointer to buffer for current state
396 * Returns: Number of bytes written to the hash function so far.
398 * Use: Returns the current state of the hash function such that
399 * it can be passed to @rmd320_set@.
402 unsigned long rmd320_state(rmd320_ctx
*ctx
, void *state
)
405 STORE32_L(p
+ 0, ctx
->a
);
406 STORE32_L(p
+ 4, ctx
->b
);
407 STORE32_L(p
+ 8, ctx
->c
);
408 STORE32_L(p
+ 12, ctx
->d
);
409 STORE32_L(p
+ 16, ctx
->e
);
410 STORE32_L(p
+ 20, ctx
->A
);
411 STORE32_L(p
+ 24, ctx
->B
);
412 STORE32_L(p
+ 28, ctx
->C
);
413 STORE32_L(p
+ 32, ctx
->D
);
414 STORE32_L(p
+ 36, ctx
->E
);
415 return (ctx
->nl
| ((ctx
->nh
<< 16) << 16));
418 /* --- Generic interface --- */
420 GHASH_DEF(RMD320
, rmd320
)
422 /* --- Test code --- */
424 HASH_TEST(RMD320
, rmd320
)
426 /*----- That's all, folks -------------------------------------------------*/