3 * $Id: rmd320.c,v 1.1 2000/07/09 21:30:31 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 /*----- Revision history --------------------------------------------------*
33 * Revision 1.1 2000/07/09 21:30:31 mdw
34 * New RIPEMD variants.
38 /*----- Header files ------------------------------------------------------*/
40 #include <mLib/bits.h>
43 #include "ghash-def.h"
47 /*----- Main code ---------------------------------------------------------*/
49 /* --- @rmd320_compress@ --- *
51 * Arguments: @rmd320_ctx *ctx@ = pointer to context block
52 * @const void *sbuf@ = pointer to buffer of appropriate size
56 * Use: RIPEMD-320 compression function.
59 void rmd320_compress(rmd320_ctx *ctx, const void *sbuf)
65 /* --- Fetch the chaining variables --- */
79 /* --- Fetch the buffer contents --- */
85 for (i = 0, p = sbuf; i < 16; i++, p += 4)
89 /* --- Definitions for round functions --- */
91 #define F(x, y, z) ((x) ^ (y) ^ (z))
92 #define G(x, y, z) (((x) & (y)) | (~(x) & (z)))
93 #define H(x, y, z) (((x) | ~(y)) ^ (z))
94 #define I(x, y, z) (((x) & (z)) | ((y) & ~(z)))
95 #define J(x, y, z) ((x) ^ ((y) | ~(z)))
97 #define T(v, w, x, y, z, i, r, f, k) do { \
98 uint32 _t = v + f(w, x, y) + buf[i] + k; \
99 v = ROL32(_t, r) + z; x = ROL32(x, 10); \
102 #define F1(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, F, 0x00000000)
103 #define G1(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, G, 0x5a827999)
104 #define H1(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, H, 0x6ed9eba1)
105 #define I1(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, I, 0x8f1bbcdc)
106 #define J1(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, J, 0xa953fd4e)
108 #define F2(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, J, 0x50a28be6)
109 #define G2(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, I, 0x5c4dd124)
110 #define H2(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, H, 0x6d703ef3)
111 #define I2(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, G, 0x7a6d76e9)
112 #define J2(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, F, 0x00000000)
114 /* --- We must do both lines together --- */
116 F1(a, b, c, d, e, 0, 11);
117 F1(e, a, b, c, d, 1, 14);
118 F1(d, e, a, b, c, 2, 15);
119 F1(c, d, e, a, b, 3, 12);
120 F1(b, c, d, e, a, 4, 5);
121 F1(a, b, c, d, e, 5, 8);
122 F1(e, a, b, c, d, 6, 7);
123 F1(d, e, a, b, c, 7, 9);
124 F1(c, d, e, a, b, 8, 11);
125 F1(b, c, d, e, a, 9, 13);
126 F1(a, b, c, d, e, 10, 14);
127 F1(e, a, b, c, d, 11, 15);
128 F1(d, e, a, b, c, 12, 6);
129 F1(c, d, e, a, b, 13, 7);
130 F1(b, c, d, e, a, 14, 9);
131 F1(a, b, c, d, e, 15, 8);
133 F2(A, B, C, D, E, 5, 8);
134 F2(E, A, B, C, D, 14, 9);
135 F2(D, E, A, B, C, 7, 9);
136 F2(C, D, E, A, B, 0, 11);
137 F2(B, C, D, E, A, 9, 13);
138 F2(A, B, C, D, E, 2, 15);
139 F2(E, A, B, C, D, 11, 15);
140 F2(D, E, A, B, C, 4, 5);
141 F2(C, D, E, A, B, 13, 7);
142 F2(B, C, D, E, A, 6, 7);
143 F2(A, B, C, D, E, 15, 8);
144 F2(E, A, B, C, D, 8, 11);
145 F2(D, E, A, B, C, 1, 14);
146 F2(C, D, E, A, B, 10, 14);
147 F2(B, C, D, E, A, 3, 12);
148 F2(A, B, C, D, E, 12, 6);
150 G1(e, A, b, c, d, 7, 7);
151 G1(d, e, A, b, c, 4, 6);
152 G1(c, d, e, A, b, 13, 8);
153 G1(b, c, d, e, A, 1, 13);
154 G1(A, b, c, d, e, 10, 11);
155 G1(e, A, b, c, d, 6, 9);
156 G1(d, e, A, b, c, 15, 7);
157 G1(c, d, e, A, b, 3, 15);
158 G1(b, c, d, e, A, 12, 7);
159 G1(A, b, c, d, e, 0, 12);
160 G1(e, A, b, c, d, 9, 15);
161 G1(d, e, A, b, c, 5, 9);
162 G1(c, d, e, A, b, 2, 11);
163 G1(b, c, d, e, A, 14, 7);
164 G1(A, b, c, d, e, 11, 13);
165 G1(e, A, b, c, d, 8, 12);
167 G2(E, a, B, C, D, 6, 9);
168 G2(D, E, a, B, C, 11, 13);
169 G2(C, D, E, a, B, 3, 15);
170 G2(B, C, D, E, a, 7, 7);
171 G2(a, B, C, D, E, 0, 12);
172 G2(E, a, B, C, D, 13, 8);
173 G2(D, E, a, B, C, 5, 9);
174 G2(C, D, E, a, B, 10, 11);
175 G2(B, C, D, E, a, 14, 7);
176 G2(a, B, C, D, E, 15, 7);
177 G2(E, a, B, C, D, 8, 12);
178 G2(D, E, a, B, C, 12, 7);
179 G2(C, D, E, a, B, 4, 6);
180 G2(B, C, D, E, a, 9, 15);
181 G2(a, B, C, D, E, 1, 13);
182 G2(E, a, B, C, D, 2, 11);
184 H1(d, e, A, B, c, 3, 11);
185 H1(c, d, e, A, B, 10, 13);
186 H1(B, c, d, e, A, 14, 6);
187 H1(A, B, c, d, e, 4, 7);
188 H1(e, A, B, c, d, 9, 14);
189 H1(d, e, A, B, c, 15, 9);
190 H1(c, d, e, A, B, 8, 13);
191 H1(B, c, d, e, A, 1, 15);
192 H1(A, B, c, d, e, 2, 14);
193 H1(e, A, B, c, d, 7, 8);
194 H1(d, e, A, B, c, 0, 13);
195 H1(c, d, e, A, B, 6, 6);
196 H1(B, c, d, e, A, 13, 5);
197 H1(A, B, c, d, e, 11, 12);
198 H1(e, A, B, c, d, 5, 7);
199 H1(d, e, A, B, c, 12, 5);
201 H2(D, E, a, b, C, 15, 9);
202 H2(C, D, E, a, b, 5, 7);
203 H2(b, C, D, E, a, 1, 15);
204 H2(a, b, C, D, E, 3, 11);
205 H2(E, a, b, C, D, 7, 8);
206 H2(D, E, a, b, C, 14, 6);
207 H2(C, D, E, a, b, 6, 6);
208 H2(b, C, D, E, a, 9, 14);
209 H2(a, b, C, D, E, 11, 12);
210 H2(E, a, b, C, D, 8, 13);
211 H2(D, E, a, b, C, 12, 5);
212 H2(C, D, E, a, b, 2, 14);
213 H2(b, C, D, E, a, 10, 13);
214 H2(a, b, C, D, E, 0, 13);
215 H2(E, a, b, C, D, 4, 7);
216 H2(D, E, a, b, C, 13, 5);
218 I1(C, d, e, A, B, 1, 11);
219 I1(B, C, d, e, A, 9, 12);
220 I1(A, B, C, d, e, 11, 14);
221 I1(e, A, B, C, d, 10, 15);
222 I1(d, e, A, B, C, 0, 14);
223 I1(C, d, e, A, B, 8, 15);
224 I1(B, C, d, e, A, 12, 9);
225 I1(A, B, C, d, e, 4, 8);
226 I1(e, A, B, C, d, 13, 9);
227 I1(d, e, A, B, C, 3, 14);
228 I1(C, d, e, A, B, 7, 5);
229 I1(B, C, d, e, A, 15, 6);
230 I1(A, B, C, d, e, 14, 8);
231 I1(e, A, B, C, d, 5, 6);
232 I1(d, e, A, B, C, 6, 5);
233 I1(C, d, e, A, B, 2, 12);
235 I2(c, D, E, a, b, 8, 15);
236 I2(b, c, D, E, a, 6, 5);
237 I2(a, b, c, D, E, 4, 8);
238 I2(E, a, b, c, D, 1, 11);
239 I2(D, E, a, b, c, 3, 14);
240 I2(c, D, E, a, b, 11, 14);
241 I2(b, c, D, E, a, 15, 6);
242 I2(a, b, c, D, E, 0, 14);
243 I2(E, a, b, c, D, 5, 6);
244 I2(D, E, a, b, c, 12, 9);
245 I2(c, D, E, a, b, 2, 12);
246 I2(b, c, D, E, a, 13, 9);
247 I2(a, b, c, D, E, 9, 12);
248 I2(E, a, b, c, D, 7, 5);
249 I2(D, E, a, b, c, 10, 15);
250 I2(c, D, E, a, b, 14, 8);
252 J1(B, C, D, e, A, 4, 9);
253 J1(A, B, C, D, e, 0, 15);
254 J1(e, A, B, C, D, 5, 5);
255 J1(D, e, A, B, C, 9, 11);
256 J1(C, D, e, A, B, 7, 6);
257 J1(B, C, D, e, A, 12, 8);
258 J1(A, B, C, D, e, 2, 13);
259 J1(e, A, B, C, D, 10, 12);
260 J1(D, e, A, B, C, 14, 5);
261 J1(C, D, e, A, B, 1, 12);
262 J1(B, C, D, e, A, 3, 13);
263 J1(A, B, C, D, e, 8, 14);
264 J1(e, A, B, C, D, 11, 11);
265 J1(D, e, A, B, C, 6, 8);
266 J1(C, D, e, A, B, 15, 5);
267 J1(B, C, D, e, A, 13, 6);
269 J2(b, c, d, E, a, 12, 8);
270 J2(a, b, c, d, E, 15, 5);
271 J2(E, a, b, c, d, 10, 12);
272 J2(d, E, a, b, c, 4, 9);
273 J2(c, d, E, a, b, 1, 12);
274 J2(b, c, d, E, a, 5, 5);
275 J2(a, b, c, d, E, 8, 14);
276 J2(E, a, b, c, d, 7, 6);
277 J2(d, E, a, b, c, 6, 8);
278 J2(c, d, E, a, b, 2, 13);
279 J2(b, c, d, E, a, 13, 6);
280 J2(a, b, c, d, E, 14, 5);
281 J2(E, a, b, c, d, 0, 15);
282 J2(d, E, a, b, c, 3, 13);
283 J2(c, d, E, a, b, 9, 11);
284 J2(b, c, d, E, a, 11, 11);
286 /* --- Write out the result --- */
300 /* --- @rmd320_init@ --- *
302 * Arguments: @rmd320_ctx *ctx@ = pointer to context block to initialize
306 * Use: Initializes a context block ready for hashing.
309 void rmd320_init(rmd320_ctx *ctx)
322 ctx->nl = ctx->nh = 0;
325 /* --- @rmd320_set@ --- *
327 * Arguments: @rmd320_ctx *ctx@ = pointer to context block
328 * @const void *buf@ = pointer to state buffer
329 * @unsigned long count@ = current count of bytes processed
333 * Use: Initializes a context block from a given state. This is
334 * useful in cases where the initial hash state is meant to be
335 * secret, e.g., for NMAC and HMAC support.
338 void rmd320_set(rmd320_ctx *ctx, const void *buf, unsigned long count)
340 const octet *p = buf;
341 ctx->a = LOAD32_L(p + 0);
342 ctx->b = LOAD32_L(p + 4);
343 ctx->c = LOAD32_L(p + 8);
344 ctx->d = LOAD32_L(p + 12);
345 ctx->e = LOAD32_L(p + 16);
346 ctx->A = LOAD32_L(p + 20);
347 ctx->B = LOAD32_L(p + 24);
348 ctx->C = LOAD32_L(p + 28);
349 ctx->D = LOAD32_L(p + 32);
350 ctx->E = LOAD32_L(p + 36);
352 ctx->nl = U32(count);
353 ctx->nh = U32(((count & ~MASK32) >> 16) >> 16);
356 /* --- @rmd320_hash@ --- *
358 * Arguments: @rmd320_ctx *ctx@ = pointer to context block
359 * @const void *buf@ = buffer of data to hash
360 * @size_t sz@ = size of buffer to hash
364 * Use: Hashes a buffer of data. The buffer may be of any size and
368 void rmd320_hash(rmd320_ctx *ctx, const void *buf, size_t sz)
370 HASH_BUFFER(RMD320, rmd320, ctx, buf, sz);
373 /* --- @rmd320_done@ --- *
375 * Arguments: @rmd320_ctx *ctx@ = pointer to context block
376 * @void *hash@ = pointer to output buffer
380 * Use: Returns the hash of the data read so far.
383 void rmd320_done(rmd320_ctx *ctx, void *hash)
386 HASH_MD5STRENGTH(RMD320, rmd320, ctx);
387 STORE32_L(p + 0, ctx->a);
388 STORE32_L(p + 4, ctx->b);
389 STORE32_L(p + 8, ctx->c);
390 STORE32_L(p + 12, ctx->d);
391 STORE32_L(p + 16, ctx->e);
392 STORE32_L(p + 20, ctx->A);
393 STORE32_L(p + 24, ctx->B);
394 STORE32_L(p + 28, ctx->C);
395 STORE32_L(p + 32, ctx->D);
396 STORE32_L(p + 36, ctx->E);
399 /* --- @rmd320_state@ --- *
401 * Arguments: @rmd320_ctx *ctx@ = pointer to context
402 * @void *state@ = pointer to buffer for current state
404 * Returns: Number of bytes written to the hash function so far.
406 * Use: Returns the current state of the hash function such that
407 * it can be passed to @rmd320_set@.
410 unsigned long rmd320_state(rmd320_ctx *ctx, void *state)
413 STORE32_L(p + 0, ctx->a);
414 STORE32_L(p + 4, ctx->b);
415 STORE32_L(p + 8, ctx->c);
416 STORE32_L(p + 12, ctx->d);
417 STORE32_L(p + 16, ctx->e);
418 STORE32_L(p + 20, ctx->A);
419 STORE32_L(p + 24, ctx->B);
420 STORE32_L(p + 28, ctx->C);
421 STORE32_L(p + 32, ctx->D);
422 STORE32_L(p + 36, ctx->E);
423 return (ctx->nl | ((ctx->nh << 16) << 16));
426 /* --- Generic interface --- */
428 GHASH_DEF(RMD320, rmd320)
430 /* --- Test code --- */
432 HASH_TEST(RMD320, rmd320)
434 /*----- That's all, folks -------------------------------------------------*/