/[rdesktop]/sourceforge.net/trunk/rdesktop/crypto/md5_dgst.c
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Annotation of /sourceforge.net/trunk/rdesktop/crypto/md5_dgst.c

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Revision 32 - (hide annotations)
Sat Sep 15 09:37:17 2001 UTC (22 years, 9 months ago) by matty
File MIME type: text/plain
File size: 10973 byte(s)
Synced crypto/ with latest OpenSSL.
Moved to OpenSSL big number routines to resolve licensing issues
with current code (although they add more bloat).

1 matty 11 /* crypto/md5/md5_dgst.c */
2 matty 32 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 matty 11 * 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>
60     #include "md5_locl.h"
61    
62     /* Implemented from RFC1321 The MD5 Message-Digest Algorithm
63     */
64    
65     #define INIT_DATA_A (unsigned long)0x67452301L
66     #define INIT_DATA_B (unsigned long)0xefcdab89L
67     #define INIT_DATA_C (unsigned long)0x98badcfeL
68     #define INIT_DATA_D (unsigned long)0x10325476L
69    
70 matty 32 void MD5_Init(MD5_CTX *c)
71 matty 11 {
72     c->A=INIT_DATA_A;
73     c->B=INIT_DATA_B;
74     c->C=INIT_DATA_C;
75     c->D=INIT_DATA_D;
76     c->Nl=0;
77     c->Nh=0;
78     c->num=0;
79     }
80    
81 matty 32 #ifndef md5_block_host_order
82     void md5_block_host_order (MD5_CTX *c, const void *data, int num)
83 matty 11 {
84 matty 32 const MD5_LONG *X=data;
85     register unsigned long A,B,C,D;
86     /*
87     * In case you wonder why A-D are declared as long and not
88     * as MD5_LONG. Doing so results in slight performance
89     * boost on LP64 architectures. The catch is we don't
90     * really care if 32 MSBs of a 64-bit register get polluted
91     * with eventual overflows as we *save* only 32 LSBs in
92     * *either* case. Now declaring 'em long excuses the compiler
93     * from keeping 32 MSBs zeroed resulting in 13% performance
94     * improvement under SPARC Solaris7/64 and 5% under AlphaLinux.
95     * Well, to be honest it should say that this *prevents*
96     * performance degradation.
97     *
98     * <appro@fy.chalmers.se>
99     */
100 matty 11
101     A=c->A;
102     B=c->B;
103     C=c->C;
104     D=c->D;
105 matty 32
106     for (;num--;X+=HASH_LBLOCK)
107 matty 11 {
108     /* Round 0 */
109     R0(A,B,C,D,X[ 0], 7,0xd76aa478L);
110     R0(D,A,B,C,X[ 1],12,0xe8c7b756L);
111     R0(C,D,A,B,X[ 2],17,0x242070dbL);
112     R0(B,C,D,A,X[ 3],22,0xc1bdceeeL);
113     R0(A,B,C,D,X[ 4], 7,0xf57c0fafL);
114     R0(D,A,B,C,X[ 5],12,0x4787c62aL);
115     R0(C,D,A,B,X[ 6],17,0xa8304613L);
116     R0(B,C,D,A,X[ 7],22,0xfd469501L);
117     R0(A,B,C,D,X[ 8], 7,0x698098d8L);
118     R0(D,A,B,C,X[ 9],12,0x8b44f7afL);
119     R0(C,D,A,B,X[10],17,0xffff5bb1L);
120     R0(B,C,D,A,X[11],22,0x895cd7beL);
121     R0(A,B,C,D,X[12], 7,0x6b901122L);
122     R0(D,A,B,C,X[13],12,0xfd987193L);
123     R0(C,D,A,B,X[14],17,0xa679438eL);
124     R0(B,C,D,A,X[15],22,0x49b40821L);
125     /* Round 1 */
126     R1(A,B,C,D,X[ 1], 5,0xf61e2562L);
127     R1(D,A,B,C,X[ 6], 9,0xc040b340L);
128     R1(C,D,A,B,X[11],14,0x265e5a51L);
129     R1(B,C,D,A,X[ 0],20,0xe9b6c7aaL);
130     R1(A,B,C,D,X[ 5], 5,0xd62f105dL);
131     R1(D,A,B,C,X[10], 9,0x02441453L);
132     R1(C,D,A,B,X[15],14,0xd8a1e681L);
133     R1(B,C,D,A,X[ 4],20,0xe7d3fbc8L);
134     R1(A,B,C,D,X[ 9], 5,0x21e1cde6L);
135     R1(D,A,B,C,X[14], 9,0xc33707d6L);
136     R1(C,D,A,B,X[ 3],14,0xf4d50d87L);
137     R1(B,C,D,A,X[ 8],20,0x455a14edL);
138     R1(A,B,C,D,X[13], 5,0xa9e3e905L);
139     R1(D,A,B,C,X[ 2], 9,0xfcefa3f8L);
140     R1(C,D,A,B,X[ 7],14,0x676f02d9L);
141     R1(B,C,D,A,X[12],20,0x8d2a4c8aL);
142     /* Round 2 */
143     R2(A,B,C,D,X[ 5], 4,0xfffa3942L);
144     R2(D,A,B,C,X[ 8],11,0x8771f681L);
145     R2(C,D,A,B,X[11],16,0x6d9d6122L);
146     R2(B,C,D,A,X[14],23,0xfde5380cL);
147     R2(A,B,C,D,X[ 1], 4,0xa4beea44L);
148     R2(D,A,B,C,X[ 4],11,0x4bdecfa9L);
149     R2(C,D,A,B,X[ 7],16,0xf6bb4b60L);
150     R2(B,C,D,A,X[10],23,0xbebfbc70L);
151     R2(A,B,C,D,X[13], 4,0x289b7ec6L);
152     R2(D,A,B,C,X[ 0],11,0xeaa127faL);
153     R2(C,D,A,B,X[ 3],16,0xd4ef3085L);
154     R2(B,C,D,A,X[ 6],23,0x04881d05L);
155     R2(A,B,C,D,X[ 9], 4,0xd9d4d039L);
156     R2(D,A,B,C,X[12],11,0xe6db99e5L);
157     R2(C,D,A,B,X[15],16,0x1fa27cf8L);
158     R2(B,C,D,A,X[ 2],23,0xc4ac5665L);
159     /* Round 3 */
160     R3(A,B,C,D,X[ 0], 6,0xf4292244L);
161     R3(D,A,B,C,X[ 7],10,0x432aff97L);
162     R3(C,D,A,B,X[14],15,0xab9423a7L);
163     R3(B,C,D,A,X[ 5],21,0xfc93a039L);
164     R3(A,B,C,D,X[12], 6,0x655b59c3L);
165     R3(D,A,B,C,X[ 3],10,0x8f0ccc92L);
166     R3(C,D,A,B,X[10],15,0xffeff47dL);
167     R3(B,C,D,A,X[ 1],21,0x85845dd1L);
168     R3(A,B,C,D,X[ 8], 6,0x6fa87e4fL);
169     R3(D,A,B,C,X[15],10,0xfe2ce6e0L);
170     R3(C,D,A,B,X[ 6],15,0xa3014314L);
171     R3(B,C,D,A,X[13],21,0x4e0811a1L);
172     R3(A,B,C,D,X[ 4], 6,0xf7537e82L);
173     R3(D,A,B,C,X[11],10,0xbd3af235L);
174     R3(C,D,A,B,X[ 2],15,0x2ad7d2bbL);
175     R3(B,C,D,A,X[ 9],21,0xeb86d391L);
176    
177 matty 32 A = c->A += A;
178     B = c->B += B;
179     C = c->C += C;
180     D = c->D += D;
181 matty 11 }
182     }
183     #endif
184    
185 matty 32 #ifndef md5_block_data_order
186     #ifdef X
187     #undef X
188     #endif
189     void md5_block_data_order (MD5_CTX *c, const void *data_, int num)
190 matty 11 {
191 matty 32 const unsigned char *data=data_;
192     register unsigned long A,B,C,D,l;
193     /*
194     * In case you wonder why A-D are declared as long and not
195     * as MD5_LONG. Doing so results in slight performance
196     * boost on LP64 architectures. The catch is we don't
197     * really care if 32 MSBs of a 64-bit register get polluted
198     * with eventual overflows as we *save* only 32 LSBs in
199     * *either* case. Now declaring 'em long excuses the compiler
200     * from keeping 32 MSBs zeroed resulting in 13% performance
201     * improvement under SPARC Solaris7/64 and 5% under AlphaLinux.
202     * Well, to be honest it should say that this *prevents*
203     * performance degradation.
204     *
205     * <appro@fy.chalmers.se>
206     */
207     #ifndef MD32_XARRAY
208     /* See comment in crypto/sha/sha_locl.h for details. */
209     unsigned long XX0, XX1, XX2, XX3, XX4, XX5, XX6, XX7,
210     XX8, XX9,XX10,XX11,XX12,XX13,XX14,XX15;
211     # define X(i) XX##i
212     #else
213     MD5_LONG XX[MD5_LBLOCK];
214     # define X(i) XX[i]
215     #endif
216 matty 11
217 matty 32 A=c->A;
218     B=c->B;
219     C=c->C;
220     D=c->D;
221 matty 11
222 matty 32 for (;num--;)
223 matty 11 {
224 matty 32 HOST_c2l(data,l); X( 0)=l; HOST_c2l(data,l); X( 1)=l;
225     /* Round 0 */
226     R0(A,B,C,D,X( 0), 7,0xd76aa478L); HOST_c2l(data,l); X( 2)=l;
227     R0(D,A,B,C,X( 1),12,0xe8c7b756L); HOST_c2l(data,l); X( 3)=l;
228     R0(C,D,A,B,X( 2),17,0x242070dbL); HOST_c2l(data,l); X( 4)=l;
229     R0(B,C,D,A,X( 3),22,0xc1bdceeeL); HOST_c2l(data,l); X( 5)=l;
230     R0(A,B,C,D,X( 4), 7,0xf57c0fafL); HOST_c2l(data,l); X( 6)=l;
231     R0(D,A,B,C,X( 5),12,0x4787c62aL); HOST_c2l(data,l); X( 7)=l;
232     R0(C,D,A,B,X( 6),17,0xa8304613L); HOST_c2l(data,l); X( 8)=l;
233     R0(B,C,D,A,X( 7),22,0xfd469501L); HOST_c2l(data,l); X( 9)=l;
234     R0(A,B,C,D,X( 8), 7,0x698098d8L); HOST_c2l(data,l); X(10)=l;
235     R0(D,A,B,C,X( 9),12,0x8b44f7afL); HOST_c2l(data,l); X(11)=l;
236     R0(C,D,A,B,X(10),17,0xffff5bb1L); HOST_c2l(data,l); X(12)=l;
237     R0(B,C,D,A,X(11),22,0x895cd7beL); HOST_c2l(data,l); X(13)=l;
238     R0(A,B,C,D,X(12), 7,0x6b901122L); HOST_c2l(data,l); X(14)=l;
239     R0(D,A,B,C,X(13),12,0xfd987193L); HOST_c2l(data,l); X(15)=l;
240     R0(C,D,A,B,X(14),17,0xa679438eL);
241     R0(B,C,D,A,X(15),22,0x49b40821L);
242     /* Round 1 */
243     R1(A,B,C,D,X( 1), 5,0xf61e2562L);
244     R1(D,A,B,C,X( 6), 9,0xc040b340L);
245     R1(C,D,A,B,X(11),14,0x265e5a51L);
246     R1(B,C,D,A,X( 0),20,0xe9b6c7aaL);
247     R1(A,B,C,D,X( 5), 5,0xd62f105dL);
248     R1(D,A,B,C,X(10), 9,0x02441453L);
249     R1(C,D,A,B,X(15),14,0xd8a1e681L);
250     R1(B,C,D,A,X( 4),20,0xe7d3fbc8L);
251     R1(A,B,C,D,X( 9), 5,0x21e1cde6L);
252     R1(D,A,B,C,X(14), 9,0xc33707d6L);
253     R1(C,D,A,B,X( 3),14,0xf4d50d87L);
254     R1(B,C,D,A,X( 8),20,0x455a14edL);
255     R1(A,B,C,D,X(13), 5,0xa9e3e905L);
256     R1(D,A,B,C,X( 2), 9,0xfcefa3f8L);
257     R1(C,D,A,B,X( 7),14,0x676f02d9L);
258     R1(B,C,D,A,X(12),20,0x8d2a4c8aL);
259     /* Round 2 */
260     R2(A,B,C,D,X( 5), 4,0xfffa3942L);
261     R2(D,A,B,C,X( 8),11,0x8771f681L);
262     R2(C,D,A,B,X(11),16,0x6d9d6122L);
263     R2(B,C,D,A,X(14),23,0xfde5380cL);
264     R2(A,B,C,D,X( 1), 4,0xa4beea44L);
265     R2(D,A,B,C,X( 4),11,0x4bdecfa9L);
266     R2(C,D,A,B,X( 7),16,0xf6bb4b60L);
267     R2(B,C,D,A,X(10),23,0xbebfbc70L);
268     R2(A,B,C,D,X(13), 4,0x289b7ec6L);
269     R2(D,A,B,C,X( 0),11,0xeaa127faL);
270     R2(C,D,A,B,X( 3),16,0xd4ef3085L);
271     R2(B,C,D,A,X( 6),23,0x04881d05L);
272     R2(A,B,C,D,X( 9), 4,0xd9d4d039L);
273     R2(D,A,B,C,X(12),11,0xe6db99e5L);
274     R2(C,D,A,B,X(15),16,0x1fa27cf8L);
275     R2(B,C,D,A,X( 2),23,0xc4ac5665L);
276     /* Round 3 */
277     R3(A,B,C,D,X( 0), 6,0xf4292244L);
278     R3(D,A,B,C,X( 7),10,0x432aff97L);
279     R3(C,D,A,B,X(14),15,0xab9423a7L);
280     R3(B,C,D,A,X( 5),21,0xfc93a039L);
281     R3(A,B,C,D,X(12), 6,0x655b59c3L);
282     R3(D,A,B,C,X( 3),10,0x8f0ccc92L);
283     R3(C,D,A,B,X(10),15,0xffeff47dL);
284     R3(B,C,D,A,X( 1),21,0x85845dd1L);
285     R3(A,B,C,D,X( 8), 6,0x6fa87e4fL);
286     R3(D,A,B,C,X(15),10,0xfe2ce6e0L);
287     R3(C,D,A,B,X( 6),15,0xa3014314L);
288     R3(B,C,D,A,X(13),21,0x4e0811a1L);
289     R3(A,B,C,D,X( 4), 6,0xf7537e82L);
290     R3(D,A,B,C,X(11),10,0xbd3af235L);
291     R3(C,D,A,B,X( 2),15,0x2ad7d2bbL);
292     R3(B,C,D,A,X( 9),21,0xeb86d391L);
293    
294     A = c->A += A;
295     B = c->B += B;
296     C = c->C += C;
297     D = c->D += D;
298 matty 11 }
299     }
300 matty 32 #endif
301 matty 11
302     #ifdef undef
303 matty 32 int printit(unsigned long *l)
304 matty 11 {
305     int i,ii;
306    
307     for (i=0; i<2; i++)
308     {
309     for (ii=0; ii<8; ii++)
310     {
311     fprintf(stderr,"%08lx ",l[i*8+ii]);
312     }
313     fprintf(stderr,"\n");
314     }
315     }
316     #endif

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