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1 /* $NetBSD: des.h,v 1.1 2009/07/19 23:30:57 christos Exp $ */
3 /* crypto/des/des.h */
4 /* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
5 * All rights reserved.
7 * This package is an SSL implementation written
8 * by Eric Young (eay@cryptsoft.com).
9 * The implementation was written so as to conform with Netscapes SSL.
11 * This library is free for commercial and non-commercial use as long as
12 * the following conditions are aheared to. The following conditions
13 * apply to all code found in this distribution, be it the RC4, RSA,
14 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
15 * included with this distribution is covered by the same copyright terms
16 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
18 * Copyright remains Eric Young's, and as such any Copyright notices in
19 * the code are not to be removed.
20 * If this package is used in a product, Eric Young should be given attribution
21 * as the author of the parts of the library used.
22 * This can be in the form of a textual message at program startup or
23 * in documentation (online or textual) provided with the package.
25 * Redistribution and use in source and binary forms, with or without
26 * modification, are permitted provided that the following conditions
27 * are met:
28 * 1. Redistributions of source code must retain the copyright
29 * notice, this list of conditions and the following disclaimer.
30 * 2. Redistributions in binary form must reproduce the above copyright
31 * notice, this list of conditions and the following disclaimer in the
32 * documentation and/or other materials provided with the distribution.
33 * 3. All advertising materials mentioning features or use of this software
34 * must display the following acknowledgement:
35 * "This product includes cryptographic software written by
36 * Eric Young (eay@cryptsoft.com)"
37 * The word 'cryptographic' can be left out if the rouines from the library
38 * being used are not cryptographic related :-).
39 * 4. If you include any Windows specific code (or a derivative thereof) from
40 * the apps directory (application code) you must include an acknowledgement:
41 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
43 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * SUCH DAMAGE.
55 * The licence and distribution terms for any publically available version or
56 * derivative of this code cannot be changed. i.e. this code cannot simply be
57 * copied and put under another distribution licence
58 * [including the GNU Public Licence.]
61 #ifndef HEADER_DES_H
62 #define HEADER_DES_H
64 #ifdef _KERBEROS_DES_H
65 #error <openssl/des.h> replaces <kerberos/des.h>.
66 #endif
68 #include <sys/types.h>
69 #define DES_LONG u_int32_t
71 #ifdef __cplusplus
72 extern "C" {
73 #endif
75 typedef unsigned char des_cblock[8];
76 typedef /* const */ unsigned char const_des_cblock[8];
77 /* With "const", gcc 2.8.1 on Solaris thinks that des_cblock *
78 * and const_des_cblock * are incompatible pointer types. */
80 #define DES_KEY_SZ 8 /*(sizeof(des_cblock))*/
81 #define DES_SCHEDULE_SZ 128 /*(sizeof(des_key_schedule))*/
83 typedef DES_LONG des_key_schedule[DES_SCHEDULE_SZ / sizeof(DES_LONG)];
85 #define DES_ENCRYPT 1
86 #define DES_DECRYPT 0
88 #define DES_CBC_MODE 0
89 #define DES_PCBC_MODE 1
91 #define des_ecb2_encrypt(i,o,k1,k2,e) \
92 des_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e))
94 #define des_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \
95 des_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e))
97 #define des_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \
98 des_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e))
100 #define des_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \
101 des_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n))
103 extern int des_check_key; /* defaults to false */
104 extern int des_rw_mode; /* defaults to DES_PCBC_MODE */
105 extern int des_set_weak_key_flag; /* set the weak key flag */
107 const char *des_options(void);
108 void des_ecb3_encrypt(const_des_cblock *, des_cblock *,
109 des_key_schedule,des_key_schedule,
110 des_key_schedule, int);
111 DES_LONG des_cbc_cksum(const unsigned char *,des_cblock *,
112 long,des_key_schedule,
113 const_des_cblock *);
114 /* des_cbc_encrypt does not update the IV! Use des_ncbc_encrypt instead. */
115 void des_cbc_encrypt(const unsigned char *input,unsigned char *,
116 long,des_key_schedule,des_cblock *,
117 int);
118 void des_ncbc_encrypt(const unsigned char *input,unsigned char *,
119 long,des_key_schedule,des_cblock *,
120 int);
121 void des_xcbc_encrypt(const unsigned char *input,unsigned char *,
122 long,des_key_schedule,des_cblock *,
123 const_des_cblock *inw,const_des_cblock *w,int);
124 void des_cfb_encrypt(const unsigned char *,unsigned char *,int,
125 long,des_key_schedule,des_cblock *,
126 int);
127 void des_ecb_encrypt(const_des_cblock *input,des_cblock *,
128 des_key_schedule,int);
130 /* This is the DES encryption function that gets called by just about
131 every other DES routine in the library. You should not use this
132 function except to implement 'modes' of DES. I say this because the
133 functions that call this routine do the conversion from 'char *' to
134 long, and this needs to be done to make sure 'non-aligned' memory
135 access do not occur. The characters are loaded 'little endian'.
136 Data is a pointer to 2 unsigned long's and ks is the
137 des_key_schedule to use. enc, is non zero specifies encryption,
138 zero if decryption. */
139 void des_encrypt1(DES_LONG *,des_key_schedule, int);
141 /* This functions is the same as des_encrypt1() except that the DES
142 initial permutation (IP) and final permutation (FP) have been left
143 out. As for des_encrypt1(), you should not use this function.
144 It is used by the routines in the library that implement triple DES.
145 IP() des_encrypt2() des_encrypt2() des_encrypt2() FP() is the same
146 as des_encrypt1() des_encrypt1() des_encrypt1() except faster :-). */
147 void des_encrypt2(DES_LONG *,des_key_schedule, int);
149 void des_encrypt3(DES_LONG *, des_key_schedule,
150 des_key_schedule, des_key_schedule);
151 void des_decrypt3(DES_LONG *, des_key_schedule,
152 des_key_schedule, des_key_schedule);
153 void des_ede3_cbc_encrypt(const unsigned char *,unsigned char *,
154 long,
155 des_key_schedule,des_key_schedule,
156 des_key_schedule,des_cblock *,int);
157 void des_ede3_cbcm_encrypt(const unsigned char *,unsigned char *,
158 long,
159 des_key_schedule,des_key_schedule,
160 des_key_schedule,
161 des_cblock *,des_cblock *,
162 int);
163 void des_ede3_cfb64_encrypt(const unsigned char *,unsigned char *,
164 long,des_key_schedule,
165 des_key_schedule,des_key_schedule,
166 des_cblock *,int *,int);
167 void des_ede3_ofb64_encrypt(const unsigned char *,unsigned char *,
168 long,des_key_schedule,
169 des_key_schedule,des_key_schedule,
170 des_cblock *,int *);
172 void des_xwhite_in2out(const_des_cblock *des_key,const_des_cblock *in_white,
173 des_cblock *_white);
175 int des_enc_read(int fd,void *,int len,des_key_schedule,
176 des_cblock *);
177 int des_enc_write(int fd,const void *,int len,des_key_schedule,
178 des_cblock *);
179 char *des_fcrypt(const char *,const char *, char *);
180 char *des_crypt(const char *,const char *);
181 void des_ofb_encrypt(const unsigned char *,unsigned char *,int,
182 long,des_key_schedule,des_cblock *);
183 void des_pcbc_encrypt(const unsigned char *input,unsigned char *,
184 long,des_key_schedule,des_cblock *,
185 int);
186 DES_LONG des_quad_cksum(const unsigned char *,des_cblock [],
187 long,int,des_cblock *);
188 void des_random_seed(des_cblock *);
189 int des_random_key(des_cblock *);
190 int des_read_password(des_cblock *,const char *,int);
191 int des_read_2passwords(des_cblock *,des_cblock *,
192 const char *,int);
193 int des_read_pw_string(char *,int,const char *,int);
194 void des_set_odd_parity(des_cblock *);
195 void des_fixup_key_parity(des_cblock *);
196 int des_check_key_parity(const_des_cblock *);
197 int des_is_weak_key(const_des_cblock *);
198 /* des_set_key (= set_key = des_key_sched = key_sched) calls
199 * des_set_key_checked if global variable des_check_key is set,
200 * des_set_key_unchecked otherwise. */
201 int des_set_key(const_des_cblock *,des_key_schedule);
202 int des_key_sched(const_des_cblock *,des_key_schedule);
203 int des_set_key_checked(const_des_cblock *,des_key_schedule);
204 void des_set_key_unchecked(const_des_cblock *,des_key_schedule);
205 void des_string_to_key(const char *,des_cblock *);
206 void des_string_to_2keys(const char *,des_cblock *,des_cblock *);
207 void des_cfb64_encrypt(const unsigned char *,unsigned char *,long,
208 des_key_schedule,des_cblock *,int *,
209 int);
210 void des_ofb64_encrypt(const unsigned char *,unsigned char *,long,
211 des_key_schedule,des_cblock *,int *);
212 int des_read_pw(char *,char *,int size,const char *,int);
214 /* The following functions are not in the normal unix build or the
215 * SSLeay build. When using the SSLeay build, use RAND_seed()
216 * and RAND_bytes() instead. */
217 int des_new_random_key(des_cblock *);
218 void des_init_random_number_generator(des_cblock *);
219 void des_set_random_generator_seed(des_cblock *);
221 /* The following definitions provide compatibility with the MIT Kerberos
222 * library. The des_key_schedule structure is not binary compatible. */
224 #define _KERBEROS_DES_H
226 #define KRBDES_ENCRYPT DES_ENCRYPT
227 #define KRBDES_DECRYPT DES_DECRYPT
229 #ifdef KERBEROS
230 # define ENCRYPT DES_ENCRYPT
231 # define DECRYPT DES_DECRYPT
232 #endif
234 #ifndef NCOMPAT
235 # define C_Block des_cblock
236 # define Key_schedule des_key_schedule
237 # define KEY_SZ DES_KEY_SZ
238 # define string_to_key des_string_to_key
239 # define read_pw_string des_read_pw_string
240 # define random_key des_random_key
241 # define pcbc_encrypt des_pcbc_encrypt
242 # define set_key des_set_key
243 # define key_sched des_key_sched
244 # define ecb_encrypt des_ecb_encrypt
245 # define cbc_encrypt des_cbc_encrypt
246 # define ncbc_encrypt des_ncbc_encrypt
247 # define xcbc_encrypt des_xcbc_encrypt
248 # define cbc_cksum des_cbc_cksum
249 # define quad_cksum des_quad_cksum
250 # define check_parity des_check_key_parity
251 #endif
253 typedef des_key_schedule bit_64;
255 #ifdef __cplusplus
257 #endif
259 #endif