crypto/des/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 #include <stdio.h>
  75
  76 /* If this is set to 'unsigned int' on a DEC Alpha, this gives about a
  77  * %20 speed up (longs are 8 bytes, int's are 4). */
  78 #ifndef DES_LONG
  79 #define DES_LONG unsigned long
  80 #endif
  81
  82 typedef unsigned char des_cblock[8];
  83 typedef struct des_ks_struct
  84         {
  85         union   {
  86                 des_cblock _;
  87                 /* make sure things are correct size on machines with
  88                  * 8 byte longs */
  89                 DES_LONG pad[2];
  90                 } ks;
  91 #undef _
  92 #define _       ks._
  93         } des_key_schedule[16];
  94
  95 #define DES_KEY_SZ      (sizeof(des_cblock))
  96 #define DES_SCHEDULE_SZ (sizeof(des_key_schedule))
  97
  98 #define DES_ENCRYPT     1
  99 #define DES_DECRYPT     0
 100
 101 #define DES_CBC_MODE    0
 102 #define DES_PCBC_MODE   1
 103
 104 #define des_ecb2_encrypt(i,o,k1,k2,e) \
 105         des_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e))
 106
 107 #define des_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \
 108         des_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e))
 109
 110 #define des_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \
 111         des_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e))
 112
 113 #define des_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \
 114         des_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n))
 115
 116 #define C_Block des_cblock
 117 #define Key_schedule des_key_schedule
 118 #ifdef KERBEROS
 119 #define ENCRYPT DES_ENCRYPT
 120 #define DECRYPT DES_DECRYPT
 121 #endif
 122 #define KEY_SZ DES_KEY_SZ
 123 #define string_to_key des_string_to_key
 124 #define read_pw_string des_read_pw_string
 125 #define random_key des_random_key
 126 #define pcbc_encrypt des_pcbc_encrypt
 127 #define set_key des_set_key
 128 #define key_sched des_key_sched
 129 #define ecb_encrypt des_ecb_encrypt
 130 #define cbc_encrypt des_cbc_encrypt
 131 #define ncbc_encrypt des_ncbc_encrypt
 132 #define xcbc_encrypt des_xcbc_encrypt
 133 #define cbc_cksum des_cbc_cksum
 134 #define quad_cksum des_quad_cksum
 135
 136 /* For compatibility with the MIT lib - eay 20/05/92 */
 137 typedef des_key_schedule bit_64;
 138 #define des_fixup_key_parity des_set_odd_parity
 139 #define des_check_key_parity check_parity
 140
 141 extern int des_check_key;       /* defaults to false */
 142 extern int des_rw_mode;         /* defaults to DES_PCBC_MODE */
 143
 144 /* The next line is used to disable full ANSI prototypes, if your
 145  * compiler has problems with the prototypes, make sure this line always
 146  * evaluates to true :-) */
 147 #if defined(MSDOS) || defined(__STDC__)
 148 #undef NOPROTO
 149 #endif
 150 #ifndef NOPROTO
 151 char *des_options(void);
 152 void des_ecb3_encrypt(des_cblock *input,des_cblock *output,
 153         des_key_schedule ks1,des_key_schedule ks2,
 154         des_key_schedule ks3, int enc);
 155 DES_LONG des_cbc_cksum(des_cblock *input,des_cblock *output,
 156         long length,des_key_schedule schedule,des_cblock *ivec);
 157 void des_cbc_encrypt(des_cblock *input,des_cblock *output,long length,
 158         des_key_schedule schedule,des_cblock *ivec,int enc);
 159 void des_ncbc_encrypt(des_cblock *input,des_cblock *output,long length,
 160         des_key_schedule schedule,des_cblock *ivec,int enc);
 161 void des_xcbc_encrypt(des_cblock *input,des_cblock *output,long length,
 162         des_key_schedule schedule,des_cblock *ivec,
 163         des_cblock *inw,des_cblock *outw,int enc);
 164 void des_3cbc_encrypt(des_cblock *input,des_cblock *output,long length,
 165         des_key_schedule sk1,des_key_schedule sk2,
 166         des_cblock *ivec1,des_cblock *ivec2,int enc);
 167 void des_cfb_encrypt(unsigned char *in,unsigned char *out,int numbits,
 168         long length,des_key_schedule schedule,des_cblock *ivec,int enc);
 169 void des_ecb_encrypt(des_cblock *input,des_cblock *output,
 170         des_key_schedule ks,int enc);
 171 void des_encrypt(DES_LONG *data,des_key_schedule ks, int enc);
 172 void des_encrypt2(DES_LONG *data,des_key_schedule ks, int enc);
 173 void des_encrypt3(DES_LONG *data, des_key_schedule ks1,
 174         des_key_schedule ks2, des_key_schedule ks3);
 175 void des_decrypt3(DES_LONG *data, des_key_schedule ks1,
 176         des_key_schedule ks2, des_key_schedule ks3);
 177 void des_ede3_cbc_encrypt(des_cblock *input, des_cblock *output,
 178         long length, des_key_schedule ks1, des_key_schedule ks2,
 179         des_key_schedule ks3, des_cblock *ivec, int enc);
 180 void des_ede3_cfb64_encrypt(unsigned char *in, unsigned char *out,
 181         long length, des_key_schedule ks1, des_key_schedule ks2,
 182         des_key_schedule ks3, des_cblock *ivec, int *num, int enc);
 183 void des_ede3_ofb64_encrypt(unsigned char *in, unsigned char *out,
 184         long length, des_key_schedule ks1, des_key_schedule ks2,
 185         des_key_schedule ks3, des_cblock *ivec, int *num);
 186
 187 void des_xwhite_in2out(des_cblock (*des_key), des_cblock (*in_white),
 188         des_cblock (*out_white));
 189
 190 int des_enc_read(int fd,char *buf,int len,des_key_schedule sched,
 191         des_cblock *iv);
 192 int des_enc_write(int fd,char *buf,int len,des_key_schedule sched,
 193         des_cblock *iv);
 194 char *des_fcrypt(const char *buf,const char *salt, char *ret);
 195 #ifdef PERL5
 196 char *des_crypt(const char *buf,const char *salt);
 197 #else
 198 /* some stupid compilers complain because I have declared char instead
 199  * of const char */
 200 #ifdef HEADER_DES_LOCL_H
 201 char *crypt(const char *buf,const char *salt);
 202 #else
 203 char *crypt();
 204 #endif
 205 #endif
 206 void des_ofb_encrypt(unsigned char *in,unsigned char *out,
 207         int numbits,long length,des_key_schedule schedule,des_cblock *ivec);
 208 void des_pcbc_encrypt(des_cblock *input,des_cblock *output,long length,
 209         des_key_schedule schedule,des_cblock *ivec,int enc);
 210 DES_LONG des_quad_cksum(des_cblock *input,des_cblock *output,
 211         long length,int out_count,des_cblock *seed);
 212 void des_random_seed(des_cblock key);
 213 void des_random_key(des_cblock ret);
 214 int des_read_password(des_cblock *key,char *prompt,int verify);
 215 int des_read_2passwords(des_cblock *key1,des_cblock *key2,
 216         char *prompt,int verify);
 217 int des_read_pw_string(char *buf,int length,char *prompt,int verify);
 218 void des_set_odd_parity(des_cblock *key);
 219 int des_is_weak_key(des_cblock *key);
 220 int des_set_key(des_cblock *key,des_key_schedule schedule);
 221 int des_key_sched(des_cblock *key,des_key_schedule schedule);
 222 void des_string_to_key(char *str,des_cblock *key);
 223 void des_string_to_2keys(char *str,des_cblock *key1,des_cblock *key2);
 224 void des_cfb64_encrypt(unsigned char *in, unsigned char *out, long length,
 225         des_key_schedule schedule, des_cblock *ivec, int *num, int enc);
 226 void des_ofb64_encrypt(unsigned char *in, unsigned char *out, long length,
 227         des_key_schedule schedule, des_cblock *ivec, int *num);
 228 int des_read_pw(char *buf, char *buff, int size, char *prompt, int verify);
 229
 230 /* Extra functions from Mark Murray <mark@grondar.za> */
 231 void des_cblock_print_file(des_cblock *cb, FILE *fp);
 232 /* The following functions are not in the normal unix build or the
 233  * SSLeay build.  When using the SSLeay build, use RAND_seed()
 234  * and RAND_bytes() instead. */
 235 int des_new_random_key(des_cblock *key);
 236 void des_init_random_number_generator(des_cblock *key);
 237 void des_set_random_generator_seed(des_cblock *key);
 238 void des_set_sequence_number(des_cblock new_sequence_number);
 239 void des_generate_random_block(des_cblock *block);
 240
 241 #else
 242
 243 char *des_options();
 244 void des_ecb3_encrypt();
 245 DES_LONG des_cbc_cksum();
 246 void des_cbc_encrypt();
 247 void des_ncbc_encrypt();
 248 void des_xcbc_encrypt();
 249 void des_3cbc_encrypt();
 250 void des_cfb_encrypt();
 251 void des_ede3_cfb64_encrypt();
 252 void des_ede3_ofb64_encrypt();
 253 void des_ecb_encrypt();
 254 void des_encrypt();
 255 void des_encrypt2();
 256 void des_encrypt3();
 257 void des_decrypt3();
 258 void des_ede3_cbc_encrypt();
 259 int des_enc_read();
 260 int des_enc_write();
 261 char *des_fcrypt();
 262 #ifdef PERL5
 263 char *des_crypt();
 264 #else
 265 char *crypt();
 266 #endif
 267 void des_ofb_encrypt();
 268 void des_pcbc_encrypt();
 269 DES_LONG des_quad_cksum();
 270 void des_random_seed();
 271 void des_random_key();
 272 int des_read_password();
 273 int des_read_2passwords();
 274 int des_read_pw_string();
 275 void des_set_odd_parity();
 276 int des_is_weak_key();
 277 int des_set_key();
 278 int des_key_sched();
 279 void des_string_to_key();
 280 void des_string_to_2keys();
 281 void des_cfb64_encrypt();
 282 void des_ofb64_encrypt();
 283 int des_read_pw();
 284 void des_xwhite_in2out();
 285
 286 /* Extra functions from Mark Murray <mark@grondar.za> */
 287 void des_cblock_print_file();
 288 /* The following functions are not in the normal unix build or the
 289  * SSLeay build.  When using the SSLeay build, use RAND_seed()
 290  * and RAND_bytes() instead. */
 291 #ifdef FreeBSD
 292 int des_new_random_key();
 293 void des_init_random_number_generator();
 294 void des_set_random_generator_seed();
 295 void des_set_sequence_number();
 296 void des_generate_random_block();
 297 #endif
 298
 299 #endif
 300
 301 #ifdef  __cplusplus
 302 }
 303 #endif
 304
 305 #endif