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git.ipfire.org Git - thirdparty/openssl.git/blob - include/openssl/des.h
1 /* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to. The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
25 * 1. Redistributions of source code must retain the copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * "This product includes cryptographic software written by
33 * Eric Young (eay@cryptsoft.com)"
34 * The word 'cryptographic' can be left out if the rouines from the library
35 * being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed. i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.]
61 # include <openssl/opensslconf.h>
63 # ifndef OPENSSL_NO_DES
67 # include <openssl/e_os2.h>
69 typedef unsigned int DES_LONG
;
71 # ifdef OPENSSL_BUILD_SHLIBCRYPTO
72 # undef OPENSSL_EXTERN
73 # define OPENSSL_EXTERN OPENSSL_EXPORT
76 typedef unsigned char DES_cblock
[8];
77 typedef /* const */ unsigned char const_DES_cblock
[8];
79 * With "const", gcc 2.8.1 on Solaris thinks that DES_cblock * and
80 * const_DES_cblock * are incompatible pointer types.
83 typedef struct DES_ks
{
87 * make sure things are correct size on machines with 8 byte longs
93 # define DES_KEY_SZ (sizeof(DES_cblock))
94 # define DES_SCHEDULE_SZ (sizeof(DES_key_schedule))
96 # define DES_ENCRYPT 1
97 # define DES_DECRYPT 0
99 # define DES_CBC_MODE 0
100 # define DES_PCBC_MODE 1
102 # define DES_ecb2_encrypt(i,o,k1,k2,e) \
103 DES_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e))
105 # define DES_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \
106 DES_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e))
108 # define DES_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \
109 DES_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e))
111 # define DES_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \
112 DES_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n))
114 OPENSSL_DECLARE_GLOBAL(int, DES_check_key
); /* defaults to false */
115 # define DES_check_key OPENSSL_GLOBAL_REF(DES_check_key)
117 const char *DES_options(void);
118 void DES_ecb3_encrypt(const_DES_cblock
*input
, DES_cblock
*output
,
119 DES_key_schedule
*ks1
, DES_key_schedule
*ks2
,
120 DES_key_schedule
*ks3
, int enc
);
121 DES_LONG
DES_cbc_cksum(const unsigned char *input
, DES_cblock
*output
,
122 long length
, DES_key_schedule
*schedule
,
123 const_DES_cblock
*ivec
);
124 /* DES_cbc_encrypt does not update the IV! Use DES_ncbc_encrypt instead. */
125 void DES_cbc_encrypt(const unsigned char *input
, unsigned char *output
,
126 long length
, DES_key_schedule
*schedule
,
127 DES_cblock
*ivec
, int enc
);
128 void DES_ncbc_encrypt(const unsigned char *input
, unsigned char *output
,
129 long length
, DES_key_schedule
*schedule
,
130 DES_cblock
*ivec
, int enc
);
131 void DES_xcbc_encrypt(const unsigned char *input
, unsigned char *output
,
132 long length
, DES_key_schedule
*schedule
,
133 DES_cblock
*ivec
, const_DES_cblock
*inw
,
134 const_DES_cblock
*outw
, int enc
);
135 void DES_cfb_encrypt(const unsigned char *in
, unsigned char *out
, int numbits
,
136 long length
, DES_key_schedule
*schedule
,
137 DES_cblock
*ivec
, int enc
);
138 void DES_ecb_encrypt(const_DES_cblock
*input
, DES_cblock
*output
,
139 DES_key_schedule
*ks
, int enc
);
142 * This is the DES encryption function that gets called by just about every
143 * other DES routine in the library. You should not use this function except
144 * to implement 'modes' of DES. I say this because the functions that call
145 * this routine do the conversion from 'char *' to long, and this needs to be
146 * done to make sure 'non-aligned' memory access do not occur. The
147 * characters are loaded 'little endian'. Data is a pointer to 2 unsigned
148 * long's and ks is the DES_key_schedule to use. enc, is non zero specifies
149 * encryption, zero if decryption.
151 void DES_encrypt1(DES_LONG
*data
, DES_key_schedule
*ks
, int enc
);
154 * This functions is the same as DES_encrypt1() except that the DES initial
155 * permutation (IP) and final permutation (FP) have been left out. As for
156 * DES_encrypt1(), you should not use this function. It is used by the
157 * routines in the library that implement triple DES. IP() DES_encrypt2()
158 * DES_encrypt2() DES_encrypt2() FP() is the same as DES_encrypt1()
159 * DES_encrypt1() DES_encrypt1() except faster :-).
161 void DES_encrypt2(DES_LONG
*data
, DES_key_schedule
*ks
, int enc
);
163 void DES_encrypt3(DES_LONG
*data
, DES_key_schedule
*ks1
,
164 DES_key_schedule
*ks2
, DES_key_schedule
*ks3
);
165 void DES_decrypt3(DES_LONG
*data
, DES_key_schedule
*ks1
,
166 DES_key_schedule
*ks2
, DES_key_schedule
*ks3
);
167 void DES_ede3_cbc_encrypt(const unsigned char *input
, unsigned char *output
,
169 DES_key_schedule
*ks1
, DES_key_schedule
*ks2
,
170 DES_key_schedule
*ks3
, DES_cblock
*ivec
, int enc
);
171 void DES_ede3_cfb64_encrypt(const unsigned char *in
, unsigned char *out
,
172 long length
, DES_key_schedule
*ks1
,
173 DES_key_schedule
*ks2
, DES_key_schedule
*ks3
,
174 DES_cblock
*ivec
, int *num
, int enc
);
175 void DES_ede3_cfb_encrypt(const unsigned char *in
, unsigned char *out
,
176 int numbits
, long length
, DES_key_schedule
*ks1
,
177 DES_key_schedule
*ks2
, DES_key_schedule
*ks3
,
178 DES_cblock
*ivec
, int enc
);
179 void DES_ede3_ofb64_encrypt(const unsigned char *in
, unsigned char *out
,
180 long length
, DES_key_schedule
*ks1
,
181 DES_key_schedule
*ks2
, DES_key_schedule
*ks3
,
182 DES_cblock
*ivec
, int *num
);
183 char *DES_fcrypt(const char *buf
, const char *salt
, char *ret
);
184 char *DES_crypt(const char *buf
, const char *salt
);
185 void DES_ofb_encrypt(const unsigned char *in
, unsigned char *out
, int numbits
,
186 long length
, DES_key_schedule
*schedule
,
188 void DES_pcbc_encrypt(const unsigned char *input
, unsigned char *output
,
189 long length
, DES_key_schedule
*schedule
,
190 DES_cblock
*ivec
, int enc
);
191 DES_LONG
DES_quad_cksum(const unsigned char *input
, DES_cblock output
[],
192 long length
, int out_count
, DES_cblock
*seed
);
193 int DES_random_key(DES_cblock
*ret
);
194 void DES_set_odd_parity(DES_cblock
*key
);
195 int DES_check_key_parity(const_DES_cblock
*key
);
196 int DES_is_weak_key(const_DES_cblock
*key
);
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.
202 int DES_set_key(const_DES_cblock
*key
, DES_key_schedule
*schedule
);
203 int DES_key_sched(const_DES_cblock
*key
, DES_key_schedule
*schedule
);
204 int DES_set_key_checked(const_DES_cblock
*key
, DES_key_schedule
*schedule
);
205 void DES_set_key_unchecked(const_DES_cblock
*key
, DES_key_schedule
*schedule
);
206 void DES_string_to_key(const char *str
, DES_cblock
*key
);
207 void DES_string_to_2keys(const char *str
, DES_cblock
*key1
, DES_cblock
*key2
);
208 void DES_cfb64_encrypt(const unsigned char *in
, unsigned char *out
,
209 long length
, DES_key_schedule
*schedule
,
210 DES_cblock
*ivec
, int *num
, int enc
);
211 void DES_ofb64_encrypt(const unsigned char *in
, unsigned char *out
,
212 long length
, DES_key_schedule
*schedule
,
213 DES_cblock
*ivec
, int *num
);
215 # define DES_fixup_key_parity DES_set_odd_parity