include/des.h

   1 /*      $OpenBSD: des.h,v 1.4 2002/03/04 22:00:13 deraadt Exp $ */
   2
   3 /* crypto/des/des.h */
   4 /* Copyright (C) 1995-1997 Eric Young (eay@mincom.oz.au)
   5  * All rights reserved.
   6  *
   7  * This package is an SSL implementation written
   8  * by Eric Young (eay@mincom.oz.au).
   9  * The implementation was written so as to conform with Netscapes SSL.
  10  *
  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@mincom.oz.au).
  17  *
  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.
  24  *
  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@mincom.oz.au)"
  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@mincom.oz.au)"
  42  *
  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.
  54  *
  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.]
  59  */
  60
  61 #ifndef HEADER_DES_H
  62 #define HEADER_DES_H
  63
  64 #ifdef  __cplusplus
  65 extern "C" {
  66 #endif
  67
  68 #include <stdio.h>
  69
  70 #define DES_LONG unsigned int
  71
  72 typedef unsigned char des_cblock[8];
  73 typedef struct des_ks_struct
  74         {
  75         union   {
  76                 des_cblock _;
  77                 /* make sure things are correct size on machines with
  78                  * 8 byte longs */
  79                 DES_LONG pad[2];
  80                 } ks;
  81 #undef _
  82 #define _       ks._
  83         } des_key_schedule[16];
  84
  85 #define DES_KEY_SZ      (sizeof(des_cblock))
  86 #define DES_SCHEDULE_SZ (sizeof(des_key_schedule))
  87
  88 #define DES_ENCRYPT     1
  89 #define DES_DECRYPT     0
  90
  91 #define DES_CBC_MODE    0
  92 #define DES_PCBC_MODE   1
  93
  94 #define des_ecb2_encrypt(i,o,k1,k2,e) \
  95         des_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e))
  96
  97 #define des_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \
  98         des_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e))
  99
 100 #define des_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \
 101         des_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e))
 102
 103 #define des_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \
 104         des_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n))
 105
 106 #define C_Block des_cblock
 107 #define Key_schedule des_key_schedule
 108 #define des_set_key_schedule des_set_key
 109 #ifdef KERBEROS
 110 #define ENCRYPT DES_ENCRYPT
 111 #define DECRYPT DES_DECRYPT
 112 #endif
 113 #define KEY_SZ DES_KEY_SZ
 114 #define string_to_key des_string_to_key
 115 #define read_pw_string des_read_pw_string
 116 #define random_key des_random_key
 117 #define pcbc_encrypt des_pcbc_encrypt
 118 #define set_key des_set_key
 119 #define key_sched des_key_sched
 120 #define ecb_encrypt des_ecb_encrypt
 121 #define cbc_encrypt des_cbc_encrypt
 122 #define ncbc_encrypt des_ncbc_encrypt
 123 #define xcbc_encrypt des_xcbc_encrypt
 124 #define cbc_cksum des_cbc_cksum
 125 #define quad_cksum des_quad_cksum
 126
 127 /* For compatibility with the MIT lib - eay 20/05/92 */
 128 typedef des_key_schedule bit_64;
 129 #define des_fixup_key_parity des_set_odd_parity
 130 #define des_check_key_parity check_parity
 131
 132 extern int des_check_key;       /* defaults to false */
 133 extern int des_rw_mode;         /* defaults to DES_PCBC_MODE */
 134
 135 /* The next line is used to disable full ANSI prototypes, if your
 136  * compiler has problems with the prototypes, make sure this line always
 137  * evaluates to true :-) */
 138 #if defined(MSDOS) || defined(__STDC__)
 139 #undef _DES_NOPROTO
 140 #endif
 141 #ifndef _DES_NOPROTO
 142 char *des_options(void);
 143 void des_ecb3_encrypt(des_cblock *input,des_cblock *output,
 144         des_key_schedule ks1,des_key_schedule ks2,
 145         des_key_schedule ks3, int enc);
 146 DES_LONG des_cbc_cksum(des_cblock *input,des_cblock *output,
 147         long length,des_key_schedule schedule,des_cblock *ivec);
 148 void des_cbc_encrypt(des_cblock *input,des_cblock *output,long length,
 149         des_key_schedule schedule,des_cblock *ivec,int enc);
 150 void des_ncbc_encrypt(des_cblock *input,des_cblock *output,long length,
 151         des_key_schedule schedule,des_cblock *ivec,int enc);
 152 void des_xcbc_encrypt(des_cblock *input,des_cblock *output,long length,
 153         des_key_schedule schedule,des_cblock *ivec,
 154         des_cblock *inw,des_cblock *outw,int enc);
 155 void des_3cbc_encrypt(des_cblock *input,des_cblock *output,long length,
 156         des_key_schedule sk1,des_key_schedule sk2,
 157         des_cblock *ivec1,des_cblock *ivec2,int enc);
 158 void des_cfb_encrypt(unsigned char *in,unsigned char *out,int numbits,
 159         long length,des_key_schedule schedule,des_cblock *ivec,int enc);
 160 void des_ecb_encrypt(des_cblock *input,des_cblock *output,
 161         des_key_schedule ks,int enc);
 162 void des_encrypt(DES_LONG *data,des_key_schedule ks, int enc);
 163 void des_encrypt2(DES_LONG *data,des_key_schedule ks, int enc);
 164 void des_encrypt3(DES_LONG *data, des_key_schedule ks1,
 165         des_key_schedule ks2, des_key_schedule ks3);
 166 void des_decrypt3(DES_LONG *data, des_key_schedule ks1,
 167         des_key_schedule ks2, des_key_schedule ks3);
 168 void des_ede3_cbc_encrypt(des_cblock *input, des_cblock *output,
 169         long length, des_key_schedule ks1, des_key_schedule ks2,
 170         des_key_schedule ks3, des_cblock *ivec, int enc);
 171 void des_ede3_cfb64_encrypt(unsigned char *in, unsigned char *out,
 172         long length, des_key_schedule ks1, des_key_schedule ks2,
 173         des_key_schedule ks3, des_cblock *ivec, int *num, int encrypt);
 174 void des_ede3_ofb64_encrypt(unsigned char *in, unsigned char *out,
 175         long length, des_key_schedule ks1, des_key_schedule ks2,
 176         des_key_schedule ks3, des_cblock *ivec, int *num);
 177
 178 int des_enc_read(int fd,char *buf,int len,des_key_schedule sched,
 179         des_cblock *iv);
 180 int des_enc_write(int fd,char *buf,int len,des_key_schedule sched,
 181         des_cblock *iv);
 182 char *des_fcrypt(const char *buf,const char *salt, char *ret);
 183 char *des_crypt(const char *buf,const char *salt);
 184 /* some stupid compilers complain because I have declared char instead
 185  * of const char */
 186 #ifdef HEADER_DES_LOCL_H
 187 char *crypt(const char *buf,const char *salt);
 188 #else
 189 char *crypt();
 190 #endif
 191 void des_ofb_encrypt(unsigned char *in,unsigned char *out,
 192         int numbits,long length,des_key_schedule schedule,des_cblock *ivec);
 193 void des_pcbc_encrypt(des_cblock *input,des_cblock *output,long length,
 194         des_key_schedule schedule,des_cblock *ivec,int enc);
 195 DES_LONG des_quad_cksum(des_cblock *input,des_cblock *output,
 196         long length,int out_count,des_cblock *seed);
 197 void des_random_seed(des_cblock key);
 198 void des_random_key(des_cblock ret);
 199 int des_read_password(des_cblock *key,char *prompt,int verify);
 200 int des_read_2passwords(des_cblock *key1,des_cblock *key2,
 201         char *prompt,int verify);
 202 int des_read_pw_string(char *buf,int length,char *prompt,int verify);
 203 void des_set_odd_parity(des_cblock *key);
 204 int des_is_weak_key(des_cblock *key);
 205 int des_set_key(des_cblock *key,des_key_schedule schedule);
 206 int des_key_sched(des_cblock *key,des_key_schedule schedule);
 207 void des_string_to_key(char *str,des_cblock *key);
 208 void des_string_to_2keys(char *str,des_cblock *key1,des_cblock *key2);
 209 void des_cfb64_encrypt(unsigned char *in, unsigned char *out, long length,
 210         des_key_schedule schedule, des_cblock *ivec, int *num, int enc);
 211 void des_ofb64_encrypt(unsigned char *in, unsigned char *out, long length,
 212         des_key_schedule schedule, des_cblock *ivec, int *num);
 213
 214 /* Extra functions from Mark Murray <mark@grondar.za> */
 215 void des_cblock_print_file(des_cblock *cb, FILE *fp);
 216 /* The following functions are not in the normal unix build or the
 217  * SSLeay build.  When using the SSLeay build, use RAND_seed()
 218  * and RAND_bytes() instead. */
 219 int des_new_random_key(des_cblock *key);
 220 void des_init_random_number_generator(des_cblock *key);
 221 void des_set_random_generator_seed(des_cblock *key);
 222 void des_set_sequence_number(des_cblock new_sequence_number);
 223 void des_generate_random_block(des_cblock *block);
 224
 225 #else
 226
 227 char *des_options();
 228 void des_ecb3_encrypt();
 229 DES_LONG des_cbc_cksum();
 230 void des_cbc_encrypt();
 231 void des_ncbc_encrypt();
 232 void des_xcbc_encrypt();
 233 void des_3cbc_encrypt();
 234 void des_cfb_encrypt();
 235 void des_ede3_cfb64_encrypt();
 236 void des_ede3_ofb64_encrypt();
 237 void des_ecb_encrypt();
 238 void des_encrypt();
 239 void des_encrypt2();
 240 void des_encrypt3();
 241 void des_decrypt3();
 242 void des_ede3_cbc_encrypt();
 243 int des_enc_read();
 244 int des_enc_write();
 245 char *des_fcrypt();
 246 char *des_crypt();
 247 char *crypt();
 248 void des_ofb_encrypt();
 249 void des_pcbc_encrypt();
 250 DES_LONG des_quad_cksum();
 251 void des_random_seed();
 252 void des_random_key();
 253 int des_read_password();
 254 int des_read_2passwords();
 255 int des_read_pw_string();
 256 void des_set_odd_parity();
 257 int des_is_weak_key();
 258 int des_set_key();
 259 int des_key_sched();
 260 void des_string_to_key();
 261 void des_string_to_2keys();
 262 void des_cfb64_encrypt();
 263 void des_ofb64_encrypt();
 264
 265 /* Extra functions from Mark Murray <mark@grondar.za> */
 266 void des_cblock_print_file();
 267 /* The following functions are not in the normal unix build or the
 268  * SSLeay build.  When using the SSLeay build, use RAND_seed()
 269  * and RAND_bytes() instead. */
 270 #ifdef FreeBSD
 271 int des_new_random_key();
 272 void des_init_random_number_generator();
 273 void des_set_random_generator_seed();
 274 void des_set_sequence_number();
 275 void des_generate_random_block();
 276 #endif
 277
 278 #endif
 279
 280 #ifdef  __cplusplus
 281 }
 282 #endif
 283
 284 #endif