c4f2d992 |
1 | /* -*-c-*- |
2 | * |
3 | * $Id: md5.c,v 1.1 1997/07/21 13:47:47 mdw Exp $ |
4 | * |
5 | * MD-5 secure hash routines |
6 | * Based on RSA MD-5 code |
7 | * |
8 | * (c) 1996, 1997 Mark Wooding |
9 | */ |
10 | |
11 | /*----- Licencing notice --------------------------------------------------* |
12 | * |
13 | * This file is part of `become' |
14 | * |
15 | * `Become' is free software; you can redistribute it and/or modify |
16 | * it under the terms of the GNU General Public License as published by |
17 | * the Free Software Foundation; either version 2 of the License, or |
18 | * (at your option) any later version. |
19 | * |
20 | * `Become' is distributed in the hope that it will be useful, |
21 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
22 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
23 | * GNU General Public License for more details. |
24 | * |
25 | * You should have received a copy of the GNU General Public License |
26 | * along with `become'; if not, write to the Free Software |
27 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
28 | */ |
29 | |
30 | /*----- Revision history --------------------------------------------------* |
31 | * |
32 | * $Log: md5.c,v $ |
33 | * Revision 1.1 1997/07/21 13:47:47 mdw |
34 | * Initial revision |
35 | * |
36 | */ |
37 | |
38 | /*----- Header files ------------------------------------------------------*/ |
39 | |
40 | #include <stdio.h> |
41 | #include <string.h> |
42 | |
43 | #include "config.h" |
44 | #include "md5.h" |
45 | #include "utils.h" |
46 | |
47 | /*----- Define MD-5 transform ---------------------------------------------*/ |
48 | |
49 | /* --- Low-level nonlinear functions --- */ |
50 | |
51 | #define f(x,y,z) (((x) & (y)) | ((~x) & (z))) |
52 | #define g(x,y,z) (((x) & (z)) | ((y) & (~z))) |
53 | #define h(x,y,z) ((x) ^ (y) ^ (z)) |
54 | #define i(x,y,z) ((y) ^ ((x) | (~z))) |
55 | |
56 | #define rol(x,b) (((x) << (b)) | ((x) >> (32-(b)))) |
57 | |
58 | /* --- Rotations applied at various stages --- */ |
59 | |
60 | #define S11 7u |
61 | #define S12 12u |
62 | #define S13 17 |
63 | #define S14 22u |
64 | #define S21 5u |
65 | #define S22 9u |
66 | #define S23 14u |
67 | #define S24 20u |
68 | #define S31 4u |
69 | #define S32 11u |
70 | #define S33 16u |
71 | #define S34 23u |
72 | #define S41 6u |
73 | #define S42 10u |
74 | #define S43 15u |
75 | #define S44 21u |
76 | |
77 | /* --- Higher level nonlinear functions --- */ |
78 | |
79 | #define ff(a, b, c, d, x, s, m) ( a += f(b, c, d) + x + m, \ |
80 | a = rol(a, s), a += b ) |
81 | |
82 | #define gg(a, b, c, d, x, s, m) ( a += g(b, c, d) + x + m, \ |
83 | a = rol(a, s), a += b ) |
84 | |
85 | #define hh(a, b, c, d, x, s, m) ( a += h(b, c, d) + x + m, \ |
86 | a = rol(a, s), a += b ) |
87 | |
88 | #define ii(a, b, c, d, x, s, m) ( a += i(b, c, d) + x + m, \ |
89 | a = rol(a, s), a += b ) |
90 | |
91 | /*----- Main code ---------------------------------------------------------*/ |
92 | |
93 | /* --- @md5__trans@ --- * |
94 | * |
95 | * Arguments: @uint_32 *v@ = pointer to chaining variables (updated) |
96 | * @const unsigned char *buf@ = pointer to a 64-byte block |
97 | * |
98 | * Returns: --- |
99 | * |
100 | * Use: Performs the main MD5 transform on a block of data. |
101 | */ |
102 | |
103 | static void md5__trans(uint_32 *v, const unsigned char *buf) |
104 | { |
105 | uint_32 a, b, c, d; |
106 | uint_32 ib[16]; |
107 | size_t i; |
108 | |
109 | /* --- Initialise my internal registers --- */ |
110 | |
111 | a = v[0], b = v[1], c = v[2], d = v[3]; |
112 | |
113 | /* --- Turn the buffer into 32-bit words --- */ |
114 | |
115 | for (i = 0; i < 16; i++) |
116 | ib[i] = load32_l(buf + (i << 2)); |
117 | |
118 | /* --- Round one --- */ |
119 | |
120 | ff(a, b, c, d, ib[ 0], S11, 0xd76aa478); /* 1 */ |
121 | ff(d, a, b, c, ib[ 1], S12, 0xe8c7b756); /* 2 */ |
122 | ff(c, d, a, b, ib[ 2], S13, 0x242070db); /* 3 */ |
123 | ff(b, c, d, a, ib[ 3], S14, 0xc1bdceee); /* 4 */ |
124 | ff(a, b, c, d, ib[ 4], S11, 0xf57c0faf); /* 5 */ |
125 | ff(d, a, b, c, ib[ 5], S12, 0x4787c62a); /* 6 */ |
126 | ff(c, d, a, b, ib[ 6], S13, 0xa8304613); /* 7 */ |
127 | ff(b, c, d, a, ib[ 7], S14, 0xfd469501); /* 8 */ |
128 | ff(a, b, c, d, ib[ 8], S11, 0x698098d8); /* 9 */ |
129 | ff(d, a, b, c, ib[ 9], S12, 0x8b44f7af); /* 10 */ |
130 | ff(c, d, a, b, ib[10], S13, 0xffff5bb1); /* 11 */ |
131 | ff(b, c, d, a, ib[11], S14, 0x895cd7be); /* 12 */ |
132 | ff(a, b, c, d, ib[12], S11, 0x6b901122); /* 13 */ |
133 | ff(d, a, b, c, ib[13], S12, 0xfd987193); /* 14 */ |
134 | ff(c, d, a, b, ib[14], S13, 0xa679438e); /* 15 */ |
135 | ff(b, c, d, a, ib[15], S14, 0x49b40821); /* 16 */ |
136 | |
137 | /* --- Round two --- */ |
138 | |
139 | gg(a, b, c, d, ib[ 1], S21, 0xf61e2562); /* 17 */ |
140 | gg(d, a, b, c, ib[ 6], S22, 0xc040b340); /* 18 */ |
141 | gg(c, d, a, b, ib[11], S23, 0x265e5a51); /* 19 */ |
142 | gg(b, c, d, a, ib[ 0], S24, 0xe9b6c7aa); /* 20 */ |
143 | gg(a, b, c, d, ib[ 5], S21, 0xd62f105d); /* 21 */ |
144 | gg(d, a, b, c, ib[10], S22, 0x02441453); /* 22 */ |
145 | gg(c, d, a, b, ib[15], S23, 0xd8a1e681); /* 23 */ |
146 | gg(b, c, d, a, ib[ 4], S24, 0xe7d3fbc8); /* 24 */ |
147 | gg(a, b, c, d, ib[ 9], S21, 0x21e1cde6); /* 25 */ |
148 | gg(d, a, b, c, ib[14], S22, 0xc33707d6); /* 26 */ |
149 | gg(c, d, a, b, ib[ 3], S23, 0xf4d50d87); /* 27 */ |
150 | gg(b, c, d, a, ib[ 8], S24, 0x455a14ed); /* 28 */ |
151 | gg(a, b, c, d, ib[13], S21, 0xa9e3e905); /* 29 */ |
152 | gg(d, a, b, c, ib[ 2], S22, 0xfcefa3f8); /* 30 */ |
153 | gg(c, d, a, b, ib[ 7], S23, 0x676f02d9); /* 31 */ |
154 | gg(b, c, d, a, ib[12], S24, 0x8d2a4c8a); /* 32 */ |
155 | |
156 | /* --- Round three --- */ |
157 | |
158 | hh(a, b, c, d, ib[ 5], S31, 0xfffa3942); /* 33 */ |
159 | hh(d, a, b, c, ib[ 8], S32, 0x8771f681); /* 34 */ |
160 | hh(c, d, a, b, ib[11], S33, 0x6d9d6122); /* 35 */ |
161 | hh(b, c, d, a, ib[14], S34, 0xfde5380c); /* 36 */ |
162 | hh(a, b, c, d, ib[ 1], S31, 0xa4beea44); /* 37 */ |
163 | hh(d, a, b, c, ib[ 4], S32, 0x4bdecfa9); /* 38 */ |
164 | hh(c, d, a, b, ib[ 7], S33, 0xf6bb4b60); /* 39 */ |
165 | hh(b, c, d, a, ib[10], S34, 0xbebfbc70); /* 40 */ |
166 | hh(a, b, c, d, ib[13], S31, 0x289b7ec6); /* 41 */ |
167 | hh(d, a, b, c, ib[ 0], S32, 0xeaa127fa); /* 42 */ |
168 | hh(c, d, a, b, ib[ 3], S33, 0xd4ef3085); /* 43 */ |
169 | hh(b, c, d, a, ib[ 6], S34, 0x04881d05); /* 44 */ |
170 | hh(a, b, c, d, ib[ 9], S31, 0xd9d4d039); /* 45 */ |
171 | hh(d, a, b, c, ib[12], S32, 0xe6db99e5); /* 46 */ |
172 | hh(c, d, a, b, ib[15], S33, 0x1fa27cf8); /* 47 */ |
173 | hh(b, c, d, a, ib[ 2], S34, 0xc4ac5665); /* 48 */ |
174 | |
175 | /* --- Round four --- */ |
176 | |
177 | ii(a, b, c, d, ib[ 0], S41, 0xf4292244); /* 49 */ |
178 | ii(d, a, b, c, ib[ 7], S42, 0x432aff97); /* 50 */ |
179 | ii(c, d, a, b, ib[14], S43, 0xab9423a7); /* 51 */ |
180 | ii(b, c, d, a, ib[ 5], S44, 0xfc93a039); /* 52 */ |
181 | ii(a, b, c, d, ib[12], S41, 0x655b59c3); /* 53 */ |
182 | ii(d, a, b, c, ib[ 3], S42, 0x8f0ccc92); /* 54 */ |
183 | ii(c, d, a, b, ib[10], S43, 0xffeff47d); /* 55 */ |
184 | ii(b, c, d, a, ib[ 1], S44, 0x85845dd1); /* 56 */ |
185 | ii(a, b, c, d, ib[ 8], S41, 0x6fa87e4f); /* 57 */ |
186 | ii(d, a, b, c, ib[15], S42, 0xfe2ce6e0); /* 58 */ |
187 | ii(c, d, a, b, ib[ 6], S43, 0xa3014314); /* 59 */ |
188 | ii(b, c, d, a, ib[13], S44, 0x4e0811a1); /* 60 */ |
189 | ii(a, b, c, d, ib[ 4], S41, 0xf7537e82); /* 61 */ |
190 | ii(d, a, b, c, ib[11], S42, 0xbd3af235); /* 62 */ |
191 | ii(c, d, a, b, ib[ 2], S43, 0x2ad7d2bb); /* 63 */ |
192 | ii(b, c, d, a, ib[ 9], S44, 0xeb86d391); /* 64 */ |
193 | |
194 | /* --- Update the context --- */ |
195 | |
196 | v[0] += a, v[1] += b, v[2] += c, v[3] += d; |
197 | } |
198 | |
199 | /* --- @md5_trans@ --- * |
200 | * |
201 | * Arguments: @unsigned char *v@ = pointer to chaining block (updated) |
202 | * @const unsigned char *buf@ = pointer to input buffer |
203 | * |
204 | * Returns: --- |
205 | * |
206 | * Use: Performs the MD5 transformation on a chunk of data. This may |
207 | * be useful for using MD5 in MDC-type cipher constructions. |
208 | */ |
209 | |
210 | void md5_trans(unsigned char *v, const unsigned char *buf) |
211 | { |
212 | uint_32 vv[4]; |
213 | |
214 | vv[0] = load32_l(v + 0); |
215 | vv[1] = load32_l(v + 4); |
216 | vv[2] = load32_l(v + 8); |
217 | vv[3] = load32_l(v + 12); |
218 | md5__trans(vv, buf); |
219 | store32_l(v + 0, vv[0]); |
220 | store32_l(v + 4, vv[1]); |
221 | store32_l(v + 8, vv[2]); |
222 | store32_l(v + 12, vv[3]); |
223 | } |
224 | |
225 | /* --- @md5_buffer@ --- * |
226 | * |
227 | * Arguments: @md5 *m@ = pointer to an MD5 context |
228 | * @const void *buff@ = pointer to buffer of data |
229 | * @size_t size@ = size of buffer |
230 | * |
231 | * Returns: --- |
232 | * |
233 | * Use: Hashes the buffer of data. You can call @md5_buffer@ |
234 | * lots of times during an MD5 job, to allow big files to be |
235 | * split into little ones. |
236 | */ |
237 | |
238 | void md5_buffer(md5 *m, const void *buff, size_t size) |
239 | { |
240 | long int s = size; |
241 | const unsigned char *b = buff; |
242 | unsigned long x, y; |
243 | |
244 | /* --- Maybe there's some data already in the buffer --- */ |
245 | |
246 | if (x = m->size & 63, x) { |
247 | y = 64 - x; |
248 | if (y > s) { |
249 | memcpy(x + m->buf, b, s); |
250 | m->size += s; |
251 | return; |
252 | } |
253 | memcpy(x + m->buf, b, y); |
254 | md5__trans(m->val, m->buf); |
255 | s -= y, b += y; |
256 | } |
257 | |
258 | /* --- Now do whole buffers-full --- */ |
259 | |
260 | while (s >= 64) { |
261 | md5__trans(m->val, b); |
262 | s -= 64, b += 64; |
263 | } |
264 | |
265 | /* --- Tidy up the tail end --- */ |
266 | |
267 | if (s) |
268 | memcpy(m->buf, b, s); |
269 | m->size += size; |
270 | } |
271 | |
272 | /* --- @md5_key@ --- * |
273 | * |
274 | * Arguments: @md5 *m@ = pointer to an MD5 context |
275 | * @const unsigned char *k@ = pointer to a 4-word `key' |
276 | * |
277 | * Returns: --- |
278 | * |
279 | * Use: Initialises a context buffer, with a chosen initialisation |
280 | * string (instead of the standard MD5 value). This allows you |
281 | * to use NMAC message authentication, should the urge take you. |
282 | */ |
283 | |
284 | void md5_key(md5 *m, const unsigned char *k) |
285 | { |
286 | m->size = 0; |
287 | m->val[0] = load32_l(k + 0); |
288 | m->val[0] = load32_l(k + 4); |
289 | m->val[0] = load32_l(k + 8); |
290 | m->val[0] = load32_l(k + 12); |
291 | } |
292 | |
293 | /* --- @md5_init@ --- * |
294 | * |
295 | * Arguments: @md5 *m@ = pointer to an MD5 context |
296 | * |
297 | * Returns: --- |
298 | * |
299 | * Use: Initialises the context buffer, so that you can do an |
300 | * MD5 job. |
301 | */ |
302 | |
303 | void md5_init(md5 *m) |
304 | { |
305 | m->size = 0; |
306 | m->val[0] = 0x67452301; |
307 | m->val[1] = 0xefcdab89; |
308 | m->val[2] = 0x98badcfe; |
309 | m->val[3] = 0x10325476; |
310 | } |
311 | |
312 | /* --- @md5_final@ --- * |
313 | * |
314 | * Arguments: @md5 *m@ = pointer to context buffer |
315 | * @unsigned char *v@ = where to store the value |
316 | * |
317 | * Returns: --- |
318 | * |
319 | * Use: Finalises an MD5 buffer, so that you can use the result. |
320 | */ |
321 | |
322 | void md5_final(md5 *m, unsigned char *v) |
323 | { |
324 | int s = m->size; |
325 | |
326 | /* --- Pad out the block --- */ |
327 | |
328 | { |
329 | const static unsigned char pad[64] = { 0x80 }; |
330 | int p = m->size & 63; |
331 | p = (p < 56) ? (p = 56 - p) : (p = 120 - p); |
332 | md5_buffer(m, pad, p); |
333 | } |
334 | |
335 | /* --- Append the length --- */ |
336 | |
337 | { |
338 | unsigned char b[8]; |
339 | |
340 | store32_l(b + 0, s << 3); |
341 | store32_l(b + 4, s >> 29); |
342 | md5_buffer(m, b, 8); |
343 | } |
344 | |
345 | /* --- Write out the value --- */ |
346 | |
347 | if (v) { |
348 | store32_l(v + 0, m->val[0]); |
349 | store32_l(v + 4, m->val[1]); |
350 | store32_l(v + 8, m->val[2]); |
351 | store32_l(v + 12, m->val[3]); |
352 | } |
353 | } |
354 | |
355 | /*----- Test driver -------------------------------------------------------*/ |
356 | |
357 | #ifdef TEST_RIG |
358 | |
359 | int main(int argc, char *argv[]) |
360 | { |
361 | if (argc > 1 && strcmp(argv[1], "-x") == 0) { |
362 | |
363 | static struct { |
364 | const char *string; |
365 | uint_32 md[4]; |
366 | } table[] = { |
367 | "", { 0xd98c1dd4, 0x04b2008f, 0x980980e9, 0x7e42f8ec }, |
368 | "a", { 0xb975c10c, 0xa8b6f1c0, 0xe299c331, 0x61267769 }, |
369 | "abc", { 0x98500190, 0xb04fd23c, 0x7d3f96d6, 0x727fe128 }, |
370 | "message digest", { 0x7d696bf9, 0x8d93b77c, 0x312f5a52, 0xd061f1aa }, |
371 | "abcdefghijklmnopqrstuvwxyz", |
372 | { 0xd7d3fcc3, 0x00e49261, 0x6c49fb7d, 0x3be167ca }, |
373 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789", |
374 | { 0x98ab74d1, 0xf5d977d2, 0x2c1c61a5, 0x9f9d419f }, |
375 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\n" |
376 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\n" |
377 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\n" |
378 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\n" |
379 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\n" |
380 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\n" |
381 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\n" |
382 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\n" |
383 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\n" |
384 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\n" |
385 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\n" |
386 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\n" |
387 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\n" |
388 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\n" |
389 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\n" |
390 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\n" |
391 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\n" |
392 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\n" |
393 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\n" |
394 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\n" |
395 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\n" |
396 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\n" |
397 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\n", |
398 | { 0xbaa7652b, 0x5e10cd4a, 0xde9acbf2, 0xfa0b9fbd } |
399 | }; |
400 | int steptbl[] = { 3, 18, 32, 37, 63, 64, 65, 256, 1024, -1 }; |
401 | |
402 | md5 m; |
403 | int i, j; |
404 | const char *p; |
405 | size_t sz, a, d; |
406 | int f = 1; |
407 | |
408 | for (i = 0; i < sizeof(table) / sizeof(table[0]); i++) { |
409 | sz = strlen(table[i].string); |
410 | for (j = 0; steptbl[j] < sz && steptbl[j] != -1; j++) { |
411 | p = table[i].string; |
412 | d = steptbl[j]; |
413 | md5_init(&m); |
414 | for (a = sz; a > d; a -= d) { |
415 | md5_buffer(&m, p, d); |
416 | p += d; |
417 | } |
418 | md5_buffer(&m, p, a); |
419 | md5_final(&m, 0); |
420 | if (m.val[0] != table[i].md[0] || |
421 | m.val[1] != table[i].md[1] || |
422 | m.val[2] != table[i].md[2] || |
423 | m.val[3] != table[i].md[3]) { |
424 | printf("!!! bad value, string == `%s', step size == %i\n" |
425 | "!!! expected %08lx-%08lx-%08lx-%08lx, found " |
426 | "%08lx-%08lx-%08lx-%08lx\n\n", |
427 | table[i].string, d, |
428 | (unsigned long)table[i].md[0], |
429 | (unsigned long)table[i].md[1], |
430 | (unsigned long)table[i].md[2], |
431 | (unsigned long)table[i].md[3], |
432 | (unsigned long)m.val[0], |
433 | (unsigned long)m.val[1], |
434 | (unsigned long)m.val[2], |
435 | (unsigned long)m.val[3]); |
436 | f = 0; |
437 | } |
438 | } |
439 | md5_init(&m); |
440 | md5_buffer(&m, table[i].string, sz); |
441 | md5_final(&m, 0); |
442 | if (m.val[0] != table[i].md[0] || |
443 | m.val[1] != table[i].md[1] || |
444 | m.val[2] != table[i].md[2] || |
445 | m.val[3] != table[i].md[3]) { |
446 | printf("!!! bad value, string == `%s', step size == entire string\n" |
447 | "!!! expected %08lx-%08lx-%08lx-%08lx, found " |
448 | "%08lx-%08lx-%08lx-%08lx\n\n", |
449 | table[i].string, |
450 | (unsigned long)table[i].md[0], |
451 | (unsigned long)table[i].md[1], |
452 | (unsigned long)table[i].md[2], |
453 | (unsigned long)table[i].md[3], |
454 | (unsigned long)m.val[0], |
455 | (unsigned long)m.val[1], |
456 | (unsigned long)m.val[2], |
457 | (unsigned long)m.val[3]); |
458 | f = 0; |
459 | } else { |
460 | printf("`%s' => %08lx-%08lx-%08lx-%08lx\n", |
461 | table[i].string, |
462 | (unsigned long)m.val[0], |
463 | (unsigned long)m.val[1], |
464 | (unsigned long)m.val[2], |
465 | (unsigned long)m.val[3]); |
466 | } |
467 | } |
468 | |
469 | } else { |
470 | |
471 | char buff[4096]; |
472 | md5 m; |
473 | int i; |
474 | int read; |
475 | |
476 | md5_init(&m); |
477 | while (read = fread(buff, 1, 4096, stdin), read) |
478 | md5_buffer(&m, buff, read); |
479 | md5_final(&m, 0); |
480 | |
481 | for (i = 0; i < 4; i++) |
482 | printf("%02lx%02lx%02lx%02lx", |
483 | (unsigned long)( (m.val[i] & 0x000000FF) >> 0 ), |
484 | (unsigned long)( (m.val[i] & 0x0000FF00) >> 8 ), |
485 | (unsigned long)( (m.val[i] & 0x00FF0000) >> 16 ), |
486 | (unsigned long)( (m.val[i] & 0xFF000000) >> 24 )); |
487 | putc('\n', stdout); |
488 | |
489 | } |
490 | |
491 | return (0); |
492 | } |
493 | |
494 | #endif |
495 | |
496 | /*----- That's all, folks -------------------------------------------------*/ |