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[strongswan.git] / src / libfreeswan / libcrypto / libdes / des.h
1 /* crypto/des/des.org */
2 /* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
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 /* WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
60 *
61 * Always modify des.org since des.h is automatically generated from
62 * it during SSLeay configuration.
63 *
64 * WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
65 */
66
67 #ifndef HEADER_DES_H
68 #define HEADER_DES_H
69
70 #ifdef __cplusplus
71 extern "C" {
72 #endif
73
74
75 /* If this is set to 'unsigned int' on a DEC Alpha, this gives about a
76 * %20 speed up (longs are 8 bytes, int's are 4). */
77 /* Must be unsigned int on ia64/Itanium or DES breaks badly */
78
79 #ifdef __KERNEL__
80 #include <linux/types.h>
81 #else
82 #include <sys/types.h>
83 #endif
84
85 #ifndef DES_LONG
86 #define DES_LONG u_int32_t
87 #endif
88
89 typedef unsigned char des_cblock[8];
90 typedef struct des_ks_struct
91 {
92 union {
93 des_cblock _;
94 /* make sure things are correct size on machines with
95 * 8 byte longs */
96 DES_LONG pad[2];
97 } ks;
98 #undef _
99 #define _ ks._
100 } des_key_schedule[16];
101
102 #define DES_KEY_SZ (sizeof(des_cblock))
103 #define DES_SCHEDULE_SZ (sizeof(des_key_schedule))
104
105 #define DES_ENCRYPT 1
106 #define DES_DECRYPT 0
107
108 #define DES_CBC_MODE 0
109 #define DES_PCBC_MODE 1
110
111 #define des_ecb2_encrypt(i,o,k1,k2,e) \
112 des_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e))
113
114 #define des_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \
115 des_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e))
116
117 #define des_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \
118 des_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e))
119
120 #define des_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \
121 des_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n))
122
123 #define C_Block des_cblock
124 #define Key_schedule des_key_schedule
125 #ifdef KERBEROS
126 #define ENCRYPT DES_ENCRYPT
127 #define DECRYPT DES_DECRYPT
128 #endif
129 #define KEY_SZ DES_KEY_SZ
130 #define string_to_key des_string_to_key
131 #define read_pw_string des_read_pw_string
132 #define random_key des_random_key
133 #define pcbc_encrypt des_pcbc_encrypt
134 #define set_key des_set_key
135 #define key_sched des_key_sched
136 #define ecb_encrypt des_ecb_encrypt
137 #define cbc_encrypt des_cbc_encrypt
138 #define ncbc_encrypt des_ncbc_encrypt
139 #define xcbc_encrypt des_xcbc_encrypt
140 #define cbc_cksum des_cbc_cksum
141 #define quad_cksum des_quad_cksum
142
143 /* For compatibility with the MIT lib - eay 20/05/92 */
144 typedef des_key_schedule bit_64;
145 #define des_fixup_key_parity des_set_odd_parity
146 #define des_check_key_parity check_parity
147
148 extern int des_check_key; /* defaults to false */
149 extern int des_rw_mode; /* defaults to DES_PCBC_MODE */
150
151 /* The next line is used to disable full ANSI prototypes, if your
152 * compiler has problems with the prototypes, make sure this line always
153 * evaluates to true :-) */
154 #if defined(MSDOS) || defined(__STDC__)
155 #undef NOPROTO
156 #endif
157 #ifndef NOPROTO
158 char *des_options(void);
159 void des_ecb3_encrypt(des_cblock *input,des_cblock *output,
160 des_key_schedule ks1,des_key_schedule ks2,
161 des_key_schedule ks3, int enc);
162 DES_LONG des_cbc_cksum(des_cblock *input,des_cblock *output,
163 long length,des_key_schedule schedule,des_cblock *ivec);
164 void des_cbc_encrypt(des_cblock *input,des_cblock *output,long length,
165 des_key_schedule schedule,des_cblock *ivec,int enc);
166 void des_ncbc_encrypt(des_cblock *input,des_cblock *output,long length,
167 des_key_schedule schedule,des_cblock *ivec,int enc);
168 void des_xcbc_encrypt(des_cblock *input,des_cblock *output,long length,
169 des_key_schedule schedule,des_cblock *ivec,
170 des_cblock *inw,des_cblock *outw,int enc);
171 void des_cfb_encrypt(unsigned char *in,unsigned char *out,int numbits,
172 long length,des_key_schedule schedule,des_cblock *ivec,int enc);
173 void des_ecb_encrypt(des_cblock *input,des_cblock *output,
174 des_key_schedule ks,int enc);
175 void des_encrypt(DES_LONG *data,des_key_schedule ks, int enc);
176 void des_encrypt2(DES_LONG *data,des_key_schedule ks, int enc);
177 void des_encrypt3(DES_LONG *data, des_key_schedule ks1,
178 des_key_schedule ks2, des_key_schedule ks3);
179 void des_decrypt3(DES_LONG *data, des_key_schedule ks1,
180 des_key_schedule ks2, des_key_schedule ks3);
181 void des_ede3_cbc_encrypt(des_cblock *input, des_cblock *output,
182 long length, des_key_schedule ks1, des_key_schedule ks2,
183 des_key_schedule ks3, des_cblock *ivec, int enc);
184 void des_ede3_cfb64_encrypt(unsigned char *in, unsigned char *out,
185 long length, des_key_schedule ks1, des_key_schedule ks2,
186 des_key_schedule ks3, des_cblock *ivec, int *num, int enc);
187 void des_ede3_ofb64_encrypt(unsigned char *in, unsigned char *out,
188 long length, des_key_schedule ks1, des_key_schedule ks2,
189 des_key_schedule ks3, des_cblock *ivec, int *num);
190
191 void des_xwhite_in2out(des_cblock (*des_key), des_cblock (*in_white),
192 des_cblock (*out_white));
193
194 int des_enc_read(int fd,char *buf,int len,des_key_schedule sched,
195 des_cblock *iv);
196 int des_enc_write(int fd,char *buf,int len,des_key_schedule sched,
197 des_cblock *iv);
198 char *des_fcrypt(const char *buf,const char *salt, char *ret);
199 #ifdef PERL5
200 char *des_crypt(const char *buf,const char *salt);
201 #else
202 /* some stupid compilers complain because I have declared char instead
203 * of const char */
204 #ifndef __KERNEL__
205 #ifdef HEADER_DES_LOCL_H
206 char *crypt(const char *buf,const char *salt);
207 #else /* HEADER_DES_LOCL_H */
208 char *crypt(void);
209 #endif /* HEADER_DES_LOCL_H */
210 #endif /* __KERNEL__ */
211 #endif /* PERL5 */
212 void des_ofb_encrypt(unsigned char *in,unsigned char *out,
213 int numbits,long length,des_key_schedule schedule,des_cblock *ivec);
214 void des_pcbc_encrypt(des_cblock *input,des_cblock *output,long length,
215 des_key_schedule schedule,des_cblock *ivec,int enc);
216 DES_LONG des_quad_cksum(des_cblock *input,des_cblock *output,
217 long length,int out_count,des_cblock *seed);
218 void des_random_seed(des_cblock key);
219 void des_random_key(des_cblock ret);
220 int des_read_password(des_cblock *key,char *prompt,int verify);
221 int des_read_2passwords(des_cblock *key1,des_cblock *key2,
222 char *prompt,int verify);
223 int des_read_pw_string(char *buf,int length,char *prompt,int verify);
224 void des_set_odd_parity(des_cblock *key);
225 int des_is_weak_key(des_cblock *key);
226 int des_set_key(des_cblock *key,des_key_schedule schedule);
227 int des_key_sched(des_cblock *key,des_key_schedule schedule);
228 void des_string_to_key(char *str,des_cblock *key);
229 void des_string_to_2keys(char *str,des_cblock *key1,des_cblock *key2);
230 void des_cfb64_encrypt(unsigned char *in, unsigned char *out, long length,
231 des_key_schedule schedule, des_cblock *ivec, int *num, int enc);
232 void des_ofb64_encrypt(unsigned char *in, unsigned char *out, long length,
233 des_key_schedule schedule, des_cblock *ivec, int *num);
234 int des_read_pw(char *buf, char *buff, int size, char *prompt, int verify);
235
236 /* Extra functions from Mark Murray <mark@grondar.za> */
237 /* The following functions are not in the normal unix build or the
238 * SSLeay build. When using the SSLeay build, use RAND_seed()
239 * and RAND_bytes() instead. */
240 int des_new_random_key(des_cblock *key);
241 void des_init_random_number_generator(des_cblock *key);
242 void des_set_random_generator_seed(des_cblock *key);
243 void des_set_sequence_number(des_cblock new_sequence_number);
244 void des_generate_random_block(des_cblock *block);
245
246 #else
247
248 char *des_options();
249 void des_ecb3_encrypt();
250 DES_LONG des_cbc_cksum();
251 void des_cbc_encrypt();
252 void des_ncbc_encrypt();
253 void des_xcbc_encrypt();
254 void des_cfb_encrypt();
255 void des_ede3_cfb64_encrypt();
256 void des_ede3_ofb64_encrypt();
257 void des_ecb_encrypt();
258 void des_encrypt();
259 void des_encrypt2();
260 void des_encrypt3();
261 void des_decrypt3();
262 void des_ede3_cbc_encrypt();
263 int des_enc_read();
264 int des_enc_write();
265 char *des_fcrypt();
266 #ifdef PERL5
267 char *des_crypt();
268 #else
269 char *crypt();
270 #endif
271 void des_ofb_encrypt();
272 void des_pcbc_encrypt();
273 DES_LONG des_quad_cksum();
274 void des_random_seed();
275 void des_random_key();
276 int des_read_password();
277 int des_read_2passwords();
278 int des_read_pw_string();
279 void des_set_odd_parity();
280 int des_is_weak_key();
281 int des_set_key();
282 int des_key_sched();
283 void des_string_to_key();
284 void des_string_to_2keys();
285 void des_cfb64_encrypt();
286 void des_ofb64_encrypt();
287 int des_read_pw();
288 void des_xwhite_in2out();
289
290 /* Extra functions from Mark Murray <mark@grondar.za> */
291 /* The following functions are not in the normal unix build or the
292 * SSLeay build. When using the SSLeay build, use RAND_seed()
293 * and RAND_bytes() instead. */
294 #ifdef FreeBSD
295 int des_new_random_key();
296 void des_init_random_number_generator();
297 void des_set_random_generator_seed();
298 void des_set_sequence_number();
299 void des_generate_random_block();
300 #endif
301
302 #endif
303
304 #ifdef __cplusplus
305 }
306 #endif
307
308 #endif