2 /* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
59 #ifndef HEADER_NEW_DES_H
60 # define HEADER_NEW_DES_H
62 # include <openssl/e_os2.h> /* OPENSSL_EXTERN, OPENSSL_NO_DES, DES_LONG
63 * (via openssl/opensslconf.h */
65 # ifdef OPENSSL_NO_DES
66 # error DES is disabled.
69 # define DES_LONG OSSL_DES_LONG
71 # ifdef OPENSSL_BUILD_SHLIBCRYPTO
72 # undef OPENSSL_EXTERN
73 # define OPENSSL_EXTERN OPENSSL_EXPORT
80 typedef unsigned char DES_cblock[8];
81 typedef /* const */ unsigned char const_DES_cblock[8];
83 * With "const", gcc 2.8.1 on Solaris thinks that DES_cblock * and
84 * const_DES_cblock * are incompatible pointer types.
87 typedef struct DES_ks {
91 * make sure things are correct size on machines with 8 byte longs
97 # define DES_KEY_SZ (sizeof(DES_cblock))
98 # define DES_SCHEDULE_SZ (sizeof(DES_key_schedule))
100 # define DES_ENCRYPT 1
101 # define DES_DECRYPT 0
103 # define DES_CBC_MODE 0
104 # define DES_PCBC_MODE 1
106 # define DES_ecb2_encrypt(i,o,k1,k2,e) \
107 DES_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e))
109 # define DES_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \
110 DES_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e))
112 # define DES_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \
113 DES_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e))
115 # define DES_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \
116 DES_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n))
118 OPENSSL_DECLARE_GLOBAL(int, DES_check_key); /* defaults to false */
119 # define DES_check_key OPENSSL_GLOBAL_REF(DES_check_key)
120 OPENSSL_DECLARE_GLOBAL(int, DES_rw_mode); /* defaults to DES_PCBC_MODE */
121 # define DES_rw_mode OPENSSL_GLOBAL_REF(DES_rw_mode)
123 const char *DES_options(void);
124 void DES_ecb3_encrypt(const_DES_cblock *input, DES_cblock *output,
125 DES_key_schedule *ks1, DES_key_schedule *ks2,
126 DES_key_schedule *ks3, int enc);
127 DES_LONG DES_cbc_cksum(const unsigned char *input, DES_cblock *output,
128 long length, DES_key_schedule *schedule,
129 const_DES_cblock *ivec);
130 /* DES_cbc_encrypt does not update the IV! Use DES_ncbc_encrypt instead. */
131 void DES_cbc_encrypt(const unsigned char *input, unsigned char *output,
132 long length, DES_key_schedule *schedule,
133 DES_cblock *ivec, int enc);
134 void DES_ncbc_encrypt(const unsigned char *input, unsigned char *output,
135 long length, DES_key_schedule *schedule,
136 DES_cblock *ivec, int enc);
137 void DES_xcbc_encrypt(const unsigned char *input, unsigned char *output,
138 long length, DES_key_schedule *schedule,
139 DES_cblock *ivec, const_DES_cblock *inw,
140 const_DES_cblock *outw, int enc);
141 void DES_cfb_encrypt(const unsigned char *in, unsigned char *out, int numbits,
142 long length, DES_key_schedule *schedule,
143 DES_cblock *ivec, int enc);
144 void DES_ecb_encrypt(const_DES_cblock *input, DES_cblock *output,
145 DES_key_schedule *ks, int enc);
148 * This is the DES encryption function that gets called by just about every
149 * other DES routine in the library. You should not use this function except
150 * to implement 'modes' of DES. I say this because the functions that call
151 * this routine do the conversion from 'char *' to long, and this needs to be
152 * done to make sure 'non-aligned' memory access do not occur. The
153 * characters are loaded 'little endian'. Data is a pointer to 2 unsigned
154 * long's and ks is the DES_key_schedule to use. enc, is non zero specifies
155 * encryption, zero if decryption.
157 void DES_encrypt1(DES_LONG *data, DES_key_schedule *ks, int enc);
160 * This functions is the same as DES_encrypt1() except that the DES initial
161 * permutation (IP) and final permutation (FP) have been left out. As for
162 * DES_encrypt1(), you should not use this function. It is used by the
163 * routines in the library that implement triple DES. IP() DES_encrypt2()
164 * DES_encrypt2() DES_encrypt2() FP() is the same as DES_encrypt1()
165 * DES_encrypt1() DES_encrypt1() except faster :-).
167 void DES_encrypt2(DES_LONG *data, DES_key_schedule *ks, int enc);
169 void DES_encrypt3(DES_LONG *data, DES_key_schedule *ks1,
170 DES_key_schedule *ks2, DES_key_schedule *ks3);
171 void DES_decrypt3(DES_LONG *data, DES_key_schedule *ks1,
172 DES_key_schedule *ks2, DES_key_schedule *ks3);
173 void DES_ede3_cbc_encrypt(const unsigned char *input, unsigned char *output,
175 DES_key_schedule *ks1, DES_key_schedule *ks2,
176 DES_key_schedule *ks3, DES_cblock *ivec, int enc);
177 void DES_ede3_cfb64_encrypt(const unsigned char *in, unsigned char *out,
178 long length, DES_key_schedule *ks1,
179 DES_key_schedule *ks2, DES_key_schedule *ks3,
180 DES_cblock *ivec, int *num, int enc);
181 void DES_ede3_cfb_encrypt(const unsigned char *in, unsigned char *out,
182 int numbits, long length, DES_key_schedule *ks1,
183 DES_key_schedule *ks2, DES_key_schedule *ks3,
184 DES_cblock *ivec, int enc);
185 void DES_ede3_ofb64_encrypt(const unsigned char *in, unsigned char *out,
186 long length, DES_key_schedule *ks1,
187 DES_key_schedule *ks2, DES_key_schedule *ks3,
188 DES_cblock *ivec, int *num);
189 int DES_enc_read(int fd, void *buf, int len, DES_key_schedule *sched,
191 int DES_enc_write(int fd, const void *buf, int len, DES_key_schedule *sched,
193 char *DES_fcrypt(const char *buf, const char *salt, char *ret);
194 char *DES_crypt(const char *buf, const char *salt);
195 void DES_ofb_encrypt(const unsigned char *in, unsigned char *out, int numbits,
196 long length, DES_key_schedule *schedule,
198 void DES_pcbc_encrypt(const unsigned char *input, unsigned char *output,
199 long length, DES_key_schedule *schedule,
200 DES_cblock *ivec, int enc);
201 DES_LONG DES_quad_cksum(const unsigned char *input, DES_cblock output[],
202 long length, int out_count, DES_cblock *seed);
203 int DES_random_key(DES_cblock *ret);
204 void DES_set_odd_parity(DES_cblock *key);
205 int DES_check_key_parity(const_DES_cblock *key);
206 int DES_is_weak_key(const_DES_cblock *key);
208 * DES_set_key (= set_key = DES_key_sched = key_sched) calls
209 * DES_set_key_checked if global variable DES_check_key is set,
210 * DES_set_key_unchecked otherwise.
212 int DES_set_key(const_DES_cblock *key, DES_key_schedule *schedule);
213 int DES_key_sched(const_DES_cblock *key, DES_key_schedule *schedule);
214 int DES_set_key_checked(const_DES_cblock *key, DES_key_schedule *schedule);
215 void DES_set_key_unchecked(const_DES_cblock *key, DES_key_schedule *schedule);
216 void DES_string_to_key(const char *str, DES_cblock *key);
217 void DES_string_to_2keys(const char *str, DES_cblock *key1, DES_cblock *key2);
218 void DES_cfb64_encrypt(const unsigned char *in, unsigned char *out,
219 long length, DES_key_schedule *schedule,
220 DES_cblock *ivec, int *num, int enc);
221 void DES_ofb64_encrypt(const unsigned char *in, unsigned char *out,
222 long length, DES_key_schedule *schedule,
223 DES_cblock *ivec, int *num);
225 int DES_read_password(DES_cblock *key, const char *prompt, int verify);
226 int DES_read_2passwords(DES_cblock *key1, DES_cblock *key2,
227 const char *prompt, int verify);
229 # define DES_fixup_key_parity DES_set_odd_parity