]>
Commit | Line | Data |
---|---|---|
d02b48c6 | 1 | /* crypto/sha/sha1dgst.c */ |
58964a49 | 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
3 | * All rights reserved. |
4 | * | |
5 | * This package is an SSL implementation written | |
6 | * by Eric Young (eay@cryptsoft.com). | |
7 | * The implementation was written so as to conform with Netscapes SSL. | |
8 | * | |
9 | * This library is free for commercial and non-commercial use as long as | |
10 | * the following conditions are aheared to. The following conditions | |
11 | * apply to all code found in this distribution, be it the RC4, RSA, | |
12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
13 | * included with this distribution is covered by the same copyright terms | |
14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
15 | * | |
16 | * Copyright remains Eric Young's, and as such any Copyright notices in | |
17 | * the code are not to be removed. | |
18 | * If this package is used in a product, Eric Young should be given attribution | |
19 | * as the author of the parts of the library used. | |
20 | * This can be in the form of a textual message at program startup or | |
21 | * in documentation (online or textual) provided with the package. | |
22 | * | |
23 | * Redistribution and use in source and binary forms, with or without | |
24 | * modification, are permitted provided that the following conditions | |
25 | * are met: | |
26 | * 1. Redistributions of source code must retain the copyright | |
27 | * notice, this list of conditions and the following disclaimer. | |
28 | * 2. Redistributions in binary form must reproduce the above copyright | |
29 | * notice, this list of conditions and the following disclaimer in the | |
30 | * documentation and/or other materials provided with the distribution. | |
31 | * 3. All advertising materials mentioning features or use of this software | |
32 | * must display the following acknowledgement: | |
33 | * "This product includes cryptographic software written by | |
34 | * Eric Young (eay@cryptsoft.com)" | |
35 | * The word 'cryptographic' can be left out if the rouines from the library | |
36 | * being used are not cryptographic related :-). | |
37 | * 4. If you include any Windows specific code (or a derivative thereof) from | |
38 | * the apps directory (application code) you must include an acknowledgement: | |
39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
40 | * | |
41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | |
42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
51 | * SUCH DAMAGE. | |
52 | * | |
53 | * The licence and distribution terms for any publically available version or | |
54 | * derivative of this code cannot be changed. i.e. this code cannot simply be | |
55 | * copied and put under another distribution licence | |
56 | * [including the GNU Public Licence.] | |
57 | */ | |
58 | ||
59 | #include <stdio.h> | |
58964a49 | 60 | #include <string.h> |
d02b48c6 RE |
61 | #undef SHA_0 |
62 | #define SHA_1 | |
ec577822 | 63 | #include <openssl/sha.h> |
d02b48c6 | 64 | #include "sha_locl.h" |
ec577822 | 65 | #include <openssl/opensslv.h> |
d02b48c6 | 66 | |
b4cadc6e | 67 | char *SHA1_version="SHA1" OPENSSL_VERSION_PTEXT; |
d02b48c6 RE |
68 | |
69 | /* Implemented from SHA-1 document - The Secure Hash Algorithm | |
70 | */ | |
71 | ||
8fb04b98 UM |
72 | #define INIT_DATA_h0 0x67452301UL |
73 | #define INIT_DATA_h1 0xefcdab89UL | |
74 | #define INIT_DATA_h2 0x98badcfeUL | |
75 | #define INIT_DATA_h3 0x10325476UL | |
76 | #define INIT_DATA_h4 0xc3d2e1f0UL | |
d02b48c6 | 77 | |
8fb04b98 UM |
78 | #define K_00_19 0x5a827999UL |
79 | #define K_20_39 0x6ed9eba1UL | |
80 | #define K_40_59 0x8f1bbcdcUL | |
81 | #define K_60_79 0xca62c1d6UL | |
d02b48c6 RE |
82 | |
83 | #ifndef NOPROTO | |
58964a49 | 84 | # ifdef SHA1_ASM |
f36cd05b | 85 | void sha1_block_x86(SHA_CTX *c, register SHA_LONG *p, int num); |
58964a49 RE |
86 | # define sha1_block sha1_block_x86 |
87 | # else | |
8fb04b98 | 88 | void sha1_block(SHA_CTX *c, register SHA_LONG *p, int num); |
58964a49 | 89 | # endif |
d02b48c6 | 90 | #else |
58964a49 RE |
91 | # ifdef SHA1_ASM |
92 | void sha1_block_x86(); | |
93 | # define sha1_block sha1_block_x86 | |
94 | # else | |
95 | void sha1_block(); | |
96 | # endif | |
97 | #endif | |
98 | ||
99 | ||
100 | #if defined(L_ENDIAN) && defined(SHA1_ASM) | |
101 | # define M_c2nl c2l | |
102 | # define M_p_c2nl p_c2l | |
103 | # define M_c2nl_p c2l_p | |
104 | # define M_p_c2nl_p p_c2l_p | |
105 | # define M_nl2c l2c | |
106 | #else | |
107 | # define M_c2nl c2nl | |
108 | # define M_p_c2nl p_c2nl | |
109 | # define M_c2nl_p c2nl_p | |
110 | # define M_p_c2nl_p p_c2nl_p | |
111 | # define M_nl2c nl2c | |
d02b48c6 RE |
112 | #endif |
113 | ||
6b691a5c | 114 | void SHA1_Init(SHA_CTX *c) |
d02b48c6 RE |
115 | { |
116 | c->h0=INIT_DATA_h0; | |
117 | c->h1=INIT_DATA_h1; | |
118 | c->h2=INIT_DATA_h2; | |
119 | c->h3=INIT_DATA_h3; | |
120 | c->h4=INIT_DATA_h4; | |
121 | c->Nl=0; | |
122 | c->Nh=0; | |
123 | c->num=0; | |
124 | } | |
125 | ||
6b691a5c UM |
126 | void SHA1_Update(SHA_CTX *c, register unsigned char *data, |
127 | unsigned long len) | |
d02b48c6 | 128 | { |
8fb04b98 | 129 | register SHA_LONG *p; |
d02b48c6 | 130 | int ew,ec,sw,sc; |
8fb04b98 | 131 | SHA_LONG l; |
d02b48c6 RE |
132 | |
133 | if (len == 0) return; | |
134 | ||
58964a49 | 135 | l=(c->Nl+(len<<3))&0xffffffffL; |
d02b48c6 RE |
136 | if (l < c->Nl) /* overflow */ |
137 | c->Nh++; | |
138 | c->Nh+=(len>>29); | |
139 | c->Nl=l; | |
140 | ||
141 | if (c->num != 0) | |
142 | { | |
143 | p=c->data; | |
144 | sw=c->num>>2; | |
145 | sc=c->num&0x03; | |
146 | ||
147 | if ((c->num+len) >= SHA_CBLOCK) | |
148 | { | |
149 | l= p[sw]; | |
58964a49 | 150 | M_p_c2nl(data,l,sc); |
d02b48c6 RE |
151 | p[sw++]=l; |
152 | for (; sw<SHA_LBLOCK; sw++) | |
153 | { | |
58964a49 | 154 | M_c2nl(data,l); |
d02b48c6 RE |
155 | p[sw]=l; |
156 | } | |
157 | len-=(SHA_CBLOCK-c->num); | |
158 | ||
58964a49 | 159 | sha1_block(c,p,64); |
d02b48c6 RE |
160 | c->num=0; |
161 | /* drop through and do the rest */ | |
162 | } | |
163 | else | |
164 | { | |
165 | c->num+=(int)len; | |
166 | if ((sc+len) < 4) /* ugly, add char's to a word */ | |
167 | { | |
168 | l= p[sw]; | |
58964a49 | 169 | M_p_c2nl_p(data,l,sc,len); |
d02b48c6 RE |
170 | p[sw]=l; |
171 | } | |
172 | else | |
173 | { | |
174 | ew=(c->num>>2); | |
175 | ec=(c->num&0x03); | |
176 | l= p[sw]; | |
58964a49 | 177 | M_p_c2nl(data,l,sc); |
d02b48c6 RE |
178 | p[sw++]=l; |
179 | for (; sw < ew; sw++) | |
58964a49 | 180 | { M_c2nl(data,l); p[sw]=l; } |
d02b48c6 RE |
181 | if (ec) |
182 | { | |
58964a49 | 183 | M_c2nl_p(data,l,ec); |
d02b48c6 RE |
184 | p[sw]=l; |
185 | } | |
186 | } | |
187 | return; | |
188 | } | |
189 | } | |
58964a49 RE |
190 | /* We can only do the following code for assember, the reason |
191 | * being that the sha1_block 'C' version changes the values | |
192 | * in the 'data' array. The assember code avoids this and | |
193 | * copies it to a local array. I should be able to do this for | |
194 | * the C version as well.... | |
195 | */ | |
196 | #if 1 | |
197 | #if defined(B_ENDIAN) || defined(SHA1_ASM) | |
8fb04b98 | 198 | if ((((unsigned long)data)%sizeof(SHA_LONG)) == 0) |
58964a49 RE |
199 | { |
200 | sw=len/SHA_CBLOCK; | |
201 | if (sw) | |
202 | { | |
203 | sw*=SHA_CBLOCK; | |
8fb04b98 | 204 | sha1_block(c,(SHA_LONG *)data,sw); |
58964a49 RE |
205 | data+=sw; |
206 | len-=sw; | |
207 | } | |
208 | } | |
209 | #endif | |
210 | #endif | |
d02b48c6 RE |
211 | /* we now can process the input data in blocks of SHA_CBLOCK |
212 | * chars and save the leftovers to c->data. */ | |
213 | p=c->data; | |
214 | while (len >= SHA_CBLOCK) | |
215 | { | |
216 | #if defined(B_ENDIAN) || defined(L_ENDIAN) | |
8fb04b98 | 217 | if (p != (SHA_LONG *)data) |
58964a49 | 218 | memcpy(p,data,SHA_CBLOCK); |
d02b48c6 | 219 | data+=SHA_CBLOCK; |
58964a49 RE |
220 | # ifdef L_ENDIAN |
221 | # ifndef SHA1_ASM /* Will not happen */ | |
d02b48c6 RE |
222 | for (sw=(SHA_LBLOCK/4); sw; sw--) |
223 | { | |
224 | Endian_Reverse32(p[0]); | |
225 | Endian_Reverse32(p[1]); | |
226 | Endian_Reverse32(p[2]); | |
227 | Endian_Reverse32(p[3]); | |
228 | p+=4; | |
229 | } | |
58964a49 RE |
230 | p=c->data; |
231 | # endif | |
232 | # endif | |
d02b48c6 RE |
233 | #else |
234 | for (sw=(SHA_BLOCK/4); sw; sw--) | |
235 | { | |
58964a49 RE |
236 | M_c2nl(data,l); *(p++)=l; |
237 | M_c2nl(data,l); *(p++)=l; | |
238 | M_c2nl(data,l); *(p++)=l; | |
239 | M_c2nl(data,l); *(p++)=l; | |
d02b48c6 | 240 | } |
d02b48c6 | 241 | p=c->data; |
58964a49 RE |
242 | #endif |
243 | sha1_block(c,p,64); | |
d02b48c6 RE |
244 | len-=SHA_CBLOCK; |
245 | } | |
246 | ec=(int)len; | |
247 | c->num=ec; | |
248 | ew=(ec>>2); | |
249 | ec&=0x03; | |
250 | ||
251 | for (sw=0; sw < ew; sw++) | |
58964a49 RE |
252 | { M_c2nl(data,l); p[sw]=l; } |
253 | M_c2nl_p(data,l,ec); | |
d02b48c6 RE |
254 | p[sw]=l; |
255 | } | |
256 | ||
6b691a5c | 257 | void SHA1_Transform(SHA_CTX *c, unsigned char *b) |
58964a49 | 258 | { |
8fb04b98 | 259 | SHA_LONG p[16]; |
58964a49 | 260 | #ifndef B_ENDIAN |
8fb04b98 | 261 | SHA_LONG *q; |
58964a49 RE |
262 | int i; |
263 | #endif | |
264 | ||
265 | #if defined(B_ENDIAN) || defined(L_ENDIAN) | |
266 | memcpy(p,b,64); | |
267 | #ifdef L_ENDIAN | |
268 | q=p; | |
269 | for (i=(SHA_LBLOCK/4); i; i--) | |
270 | { | |
271 | Endian_Reverse32(q[0]); | |
272 | Endian_Reverse32(q[1]); | |
273 | Endian_Reverse32(q[2]); | |
274 | Endian_Reverse32(q[3]); | |
275 | q+=4; | |
276 | } | |
277 | #endif | |
278 | #else | |
279 | q=p; | |
280 | for (i=(SHA_LBLOCK/4); i; i--) | |
281 | { | |
8fb04b98 | 282 | SHA_LONG l; |
58964a49 RE |
283 | c2nl(b,l); *(q++)=l; |
284 | c2nl(b,l); *(q++)=l; | |
285 | c2nl(b,l); *(q++)=l; | |
286 | c2nl(b,l); *(q++)=l; | |
287 | } | |
288 | #endif | |
289 | sha1_block(c,p,64); | |
290 | } | |
291 | ||
292 | #ifndef SHA1_ASM | |
293 | ||
8fb04b98 | 294 | void sha1_block(SHA_CTX *c, register SHA_LONG *W, int num) |
d02b48c6 | 295 | { |
8fb04b98 UM |
296 | register SHA_LONG A,B,C,D,E,T; |
297 | SHA_LONG X[16]; | |
58964a49 RE |
298 | |
299 | A=c->h0; | |
300 | B=c->h1; | |
301 | C=c->h2; | |
302 | D=c->h3; | |
303 | E=c->h4; | |
304 | ||
305 | for (;;) | |
306 | { | |
307 | BODY_00_15( 0,A,B,C,D,E,T,W); | |
308 | BODY_00_15( 1,T,A,B,C,D,E,W); | |
309 | BODY_00_15( 2,E,T,A,B,C,D,W); | |
310 | BODY_00_15( 3,D,E,T,A,B,C,W); | |
311 | BODY_00_15( 4,C,D,E,T,A,B,W); | |
312 | BODY_00_15( 5,B,C,D,E,T,A,W); | |
313 | BODY_00_15( 6,A,B,C,D,E,T,W); | |
314 | BODY_00_15( 7,T,A,B,C,D,E,W); | |
315 | BODY_00_15( 8,E,T,A,B,C,D,W); | |
316 | BODY_00_15( 9,D,E,T,A,B,C,W); | |
317 | BODY_00_15(10,C,D,E,T,A,B,W); | |
318 | BODY_00_15(11,B,C,D,E,T,A,W); | |
319 | BODY_00_15(12,A,B,C,D,E,T,W); | |
320 | BODY_00_15(13,T,A,B,C,D,E,W); | |
321 | BODY_00_15(14,E,T,A,B,C,D,W); | |
322 | BODY_00_15(15,D,E,T,A,B,C,W); | |
323 | BODY_16_19(16,C,D,E,T,A,B,W,W,W,W); | |
324 | BODY_16_19(17,B,C,D,E,T,A,W,W,W,W); | |
325 | BODY_16_19(18,A,B,C,D,E,T,W,W,W,W); | |
326 | BODY_16_19(19,T,A,B,C,D,E,W,W,W,X); | |
327 | ||
328 | BODY_20_31(20,E,T,A,B,C,D,W,W,W,X); | |
329 | BODY_20_31(21,D,E,T,A,B,C,W,W,W,X); | |
330 | BODY_20_31(22,C,D,E,T,A,B,W,W,W,X); | |
331 | BODY_20_31(23,B,C,D,E,T,A,W,W,W,X); | |
332 | BODY_20_31(24,A,B,C,D,E,T,W,W,X,X); | |
333 | BODY_20_31(25,T,A,B,C,D,E,W,W,X,X); | |
334 | BODY_20_31(26,E,T,A,B,C,D,W,W,X,X); | |
335 | BODY_20_31(27,D,E,T,A,B,C,W,W,X,X); | |
336 | BODY_20_31(28,C,D,E,T,A,B,W,W,X,X); | |
337 | BODY_20_31(29,B,C,D,E,T,A,W,W,X,X); | |
338 | BODY_20_31(30,A,B,C,D,E,T,W,X,X,X); | |
339 | BODY_20_31(31,T,A,B,C,D,E,W,X,X,X); | |
340 | BODY_32_39(32,E,T,A,B,C,D,X); | |
341 | BODY_32_39(33,D,E,T,A,B,C,X); | |
342 | BODY_32_39(34,C,D,E,T,A,B,X); | |
343 | BODY_32_39(35,B,C,D,E,T,A,X); | |
344 | BODY_32_39(36,A,B,C,D,E,T,X); | |
345 | BODY_32_39(37,T,A,B,C,D,E,X); | |
346 | BODY_32_39(38,E,T,A,B,C,D,X); | |
347 | BODY_32_39(39,D,E,T,A,B,C,X); | |
348 | ||
349 | BODY_40_59(40,C,D,E,T,A,B,X); | |
350 | BODY_40_59(41,B,C,D,E,T,A,X); | |
351 | BODY_40_59(42,A,B,C,D,E,T,X); | |
352 | BODY_40_59(43,T,A,B,C,D,E,X); | |
353 | BODY_40_59(44,E,T,A,B,C,D,X); | |
354 | BODY_40_59(45,D,E,T,A,B,C,X); | |
355 | BODY_40_59(46,C,D,E,T,A,B,X); | |
356 | BODY_40_59(47,B,C,D,E,T,A,X); | |
357 | BODY_40_59(48,A,B,C,D,E,T,X); | |
358 | BODY_40_59(49,T,A,B,C,D,E,X); | |
359 | BODY_40_59(50,E,T,A,B,C,D,X); | |
360 | BODY_40_59(51,D,E,T,A,B,C,X); | |
361 | BODY_40_59(52,C,D,E,T,A,B,X); | |
362 | BODY_40_59(53,B,C,D,E,T,A,X); | |
363 | BODY_40_59(54,A,B,C,D,E,T,X); | |
364 | BODY_40_59(55,T,A,B,C,D,E,X); | |
365 | BODY_40_59(56,E,T,A,B,C,D,X); | |
366 | BODY_40_59(57,D,E,T,A,B,C,X); | |
367 | BODY_40_59(58,C,D,E,T,A,B,X); | |
368 | BODY_40_59(59,B,C,D,E,T,A,X); | |
369 | ||
370 | BODY_60_79(60,A,B,C,D,E,T,X); | |
371 | BODY_60_79(61,T,A,B,C,D,E,X); | |
372 | BODY_60_79(62,E,T,A,B,C,D,X); | |
373 | BODY_60_79(63,D,E,T,A,B,C,X); | |
374 | BODY_60_79(64,C,D,E,T,A,B,X); | |
375 | BODY_60_79(65,B,C,D,E,T,A,X); | |
376 | BODY_60_79(66,A,B,C,D,E,T,X); | |
377 | BODY_60_79(67,T,A,B,C,D,E,X); | |
378 | BODY_60_79(68,E,T,A,B,C,D,X); | |
379 | BODY_60_79(69,D,E,T,A,B,C,X); | |
380 | BODY_60_79(70,C,D,E,T,A,B,X); | |
381 | BODY_60_79(71,B,C,D,E,T,A,X); | |
382 | BODY_60_79(72,A,B,C,D,E,T,X); | |
383 | BODY_60_79(73,T,A,B,C,D,E,X); | |
384 | BODY_60_79(74,E,T,A,B,C,D,X); | |
385 | BODY_60_79(75,D,E,T,A,B,C,X); | |
386 | BODY_60_79(76,C,D,E,T,A,B,X); | |
387 | BODY_60_79(77,B,C,D,E,T,A,X); | |
388 | BODY_60_79(78,A,B,C,D,E,T,X); | |
389 | BODY_60_79(79,T,A,B,C,D,E,X); | |
390 | ||
391 | c->h0=(c->h0+E)&0xffffffffL; | |
392 | c->h1=(c->h1+T)&0xffffffffL; | |
393 | c->h2=(c->h2+A)&0xffffffffL; | |
394 | c->h3=(c->h3+B)&0xffffffffL; | |
395 | c->h4=(c->h4+C)&0xffffffffL; | |
396 | ||
397 | num-=64; | |
398 | if (num <= 0) break; | |
d02b48c6 RE |
399 | |
400 | A=c->h0; | |
401 | B=c->h1; | |
402 | C=c->h2; | |
403 | D=c->h3; | |
404 | E=c->h4; | |
405 | ||
58964a49 RE |
406 | W+=16; |
407 | } | |
d02b48c6 | 408 | } |
58964a49 | 409 | #endif |
d02b48c6 | 410 | |
6b691a5c | 411 | void SHA1_Final(unsigned char *md, SHA_CTX *c) |
d02b48c6 RE |
412 | { |
413 | register int i,j; | |
8fb04b98 UM |
414 | register SHA_LONG l; |
415 | register SHA_LONG *p; | |
d02b48c6 RE |
416 | static unsigned char end[4]={0x80,0x00,0x00,0x00}; |
417 | unsigned char *cp=end; | |
418 | ||
419 | /* c->num should definitly have room for at least one more byte. */ | |
420 | p=c->data; | |
421 | j=c->num; | |
422 | i=j>>2; | |
423 | #ifdef PURIFY | |
424 | if ((j&0x03) == 0) p[i]=0; | |
425 | #endif | |
426 | l=p[i]; | |
58964a49 | 427 | M_p_c2nl(cp,l,j&0x03); |
d02b48c6 RE |
428 | p[i]=l; |
429 | i++; | |
430 | /* i is the next 'undefined word' */ | |
431 | if (c->num >= SHA_LAST_BLOCK) | |
432 | { | |
433 | for (; i<SHA_LBLOCK; i++) | |
434 | p[i]=0; | |
58964a49 | 435 | sha1_block(c,p,64); |
d02b48c6 RE |
436 | i=0; |
437 | } | |
438 | for (; i<(SHA_LBLOCK-2); i++) | |
439 | p[i]=0; | |
440 | p[SHA_LBLOCK-2]=c->Nh; | |
441 | p[SHA_LBLOCK-1]=c->Nl; | |
58964a49 RE |
442 | #if defined(L_ENDIAN) && defined(SHA1_ASM) |
443 | Endian_Reverse32(p[SHA_LBLOCK-2]); | |
444 | Endian_Reverse32(p[SHA_LBLOCK-1]); | |
445 | #endif | |
446 | sha1_block(c,p,64); | |
d02b48c6 RE |
447 | cp=md; |
448 | l=c->h0; nl2c(l,cp); | |
449 | l=c->h1; nl2c(l,cp); | |
450 | l=c->h2; nl2c(l,cp); | |
451 | l=c->h3; nl2c(l,cp); | |
452 | l=c->h4; nl2c(l,cp); | |
453 | ||
454 | /* clear stuff, sha1_block may be leaving some stuff on the stack | |
455 | * but I'm not worried :-) */ | |
456 | c->num=0; | |
457 | /* memset((char *)&c,0,sizeof(c));*/ | |
458 | } | |
459 |