linux/include/crypto/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
  75 /* If this is set to 'unsigned int' on a DEC Alpha, this gives about a
  76  * %20 speed up (longs are 8 bytes, int's are 4). */
  77 /* Must be unsigned int on ia64/Itanium or DES breaks badly */
  78
  79 #ifdef __KERNEL__
  80 #include <linux/types.h>
  81 #else
  82 #include <sys/types.h>
  83 #endif
  84
  85 #ifndef DES_LONG
  86 #define DES_LONG u_int32_t
  87 #endif
  88
  89 typedef unsigned char des_cblock[8];
  90 typedef struct des_ks_struct
  91         {
  92         union   {
  93                 des_cblock _;
  94                 /* make sure things are correct size on machines with
  95                  * 8 byte longs */
  96                 DES_LONG pad[2];
  97                 } ks;
  98 #undef _
  99 #define _       ks._
 100         } des_key_schedule[16];
 101
 102 #define DES_KEY_SZ      (sizeof(des_cblock))
 103 #define DES_SCHEDULE_SZ (sizeof(des_key_schedule))
 104
 105 #define DES_ENCRYPT     1
 106 #define DES_DECRYPT     0
 107
 108 #define DES_CBC_MODE    0
 109 #define DES_PCBC_MODE   1
 110
 111 #define des_ecb2_encrypt(i,o,k1,k2,e) \
 112         des_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e))
 113
 114 #define des_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \
 115         des_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e))
 116
 117 #define des_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \
 118         des_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e))
 119
 120 #define des_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \
 121         des_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n))
 122
 123 #define C_Block des_cblock
 124 #define Key_schedule des_key_schedule
 125 #ifdef KERBEROS
 126 #define ENCRYPT DES_ENCRYPT
 127 #define DECRYPT DES_DECRYPT
 128 #endif
 129 #define KEY_SZ DES_KEY_SZ
 130 #define string_to_key des_string_to_key
 131 #define read_pw_string des_read_pw_string
 132 #define random_key des_random_key
 133 #define pcbc_encrypt des_pcbc_encrypt
 134 #define set_key des_set_key
 135 #define key_sched des_key_sched
 136 #define ecb_encrypt des_ecb_encrypt
 137 #define cbc_encrypt des_cbc_encrypt
 138 #define ncbc_encrypt des_ncbc_encrypt
 139 #define xcbc_encrypt des_xcbc_encrypt
 140 #define cbc_cksum des_cbc_cksum
 141 #define quad_cksum des_quad_cksum
 142
 143 /* For compatibility with the MIT lib - eay 20/05/92 */
 144 typedef des_key_schedule bit_64;
 145 #define des_fixup_key_parity des_set_odd_parity
 146 #define des_check_key_parity check_parity
 147
 148 extern int des_check_key;       /* defaults to false */
 149 extern int des_rw_mode;         /* defaults to DES_PCBC_MODE */
 150
 151 /* The next line is used to disable full ANSI prototypes, if your
 152  * compiler has problems with the prototypes, make sure this line always
 153  * evaluates to true :-) */
 154 #if defined(MSDOS) || defined(__STDC__)
 155 #undef NOPROTO
 156 #endif
 157 #ifndef NOPROTO
 158 char *des_options(void);
 159 void des_ecb3_encrypt(des_cblock *input,des_cblock *output,
 160         des_key_schedule ks1,des_key_schedule ks2,
 161         des_key_schedule ks3, int enc);
 162 DES_LONG des_cbc_cksum(des_cblock *input,des_cblock *output,
 163         long length,des_key_schedule schedule,des_cblock *ivec);
 164 void des_cbc_encrypt(des_cblock *input,des_cblock *output,long length,
 165         des_key_schedule schedule,des_cblock *ivec,int enc);
 166 void des_ncbc_encrypt(des_cblock *input,des_cblock *output,long length,
 167         des_key_schedule schedule,des_cblock *ivec,int enc);
 168 void des_xcbc_encrypt(des_cblock *input,des_cblock *output,long length,
 169         des_key_schedule schedule,des_cblock *ivec,
 170         des_cblock *inw,des_cblock *outw,int enc);
 171 void des_cfb_encrypt(unsigned char *in,unsigned char *out,int numbits,
 172         long length,des_key_schedule schedule,des_cblock *ivec,int enc);
 173 void des_ecb_encrypt(des_cblock *input,des_cblock *output,
 174         des_key_schedule ks,int enc);
 175 void des_encrypt(DES_LONG *data,des_key_schedule ks, int enc);
 176 void des_encrypt2(DES_LONG *data,des_key_schedule ks, int enc);
 177 void des_encrypt3(DES_LONG *data, des_key_schedule ks1,
 178         des_key_schedule ks2, des_key_schedule ks3);
 179 void des_decrypt3(DES_LONG *data, des_key_schedule ks1,
 180         des_key_schedule ks2, des_key_schedule ks3);
 181 void des_ede3_cbc_encrypt(des_cblock *input, des_cblock *output,
 182         long length, des_key_schedule ks1, des_key_schedule ks2,
 183         des_key_schedule ks3, des_cblock *ivec, int enc);
 184 void des_ede3_cfb64_encrypt(unsigned char *in, unsigned char *out,
 185         long length, des_key_schedule ks1, des_key_schedule ks2,
 186         des_key_schedule ks3, des_cblock *ivec, int *num, int enc);
 187 void des_ede3_ofb64_encrypt(unsigned char *in, unsigned char *out,
 188         long length, des_key_schedule ks1, des_key_schedule ks2,
 189         des_key_schedule ks3, des_cblock *ivec, int *num);
 190
 191 void des_xwhite_in2out(des_cblock (*des_key), des_cblock (*in_white),
 192         des_cblock (*out_white));
 193
 194 int des_enc_read(int fd,char *buf,int len,des_key_schedule sched,
 195         des_cblock *iv);
 196 int des_enc_write(int fd,char *buf,int len,des_key_schedule sched,
 197         des_cblock *iv);
 198 char *des_fcrypt(const char *buf,const char *salt, char *ret);
 199 #ifdef PERL5
 200 char *des_crypt(const char *buf,const char *salt);
 201 #else
 202 /* some stupid compilers complain because I have declared char instead
 203  * of const char */
 204 #ifndef __KERNEL__
 205 #ifdef HEADER_DES_LOCL_H
 206 char *crypt(const char *buf,const char *salt);
 207 #else /* HEADER_DES_LOCL_H */
 208 char *crypt(void);
 209 #endif /* HEADER_DES_LOCL_H */
 210 #endif /* __KERNEL__ */
 211 #endif /* PERL5 */
 212 void des_ofb_encrypt(unsigned char *in,unsigned char *out,
 213         int numbits,long length,des_key_schedule schedule,des_cblock *ivec);
 214 void des_pcbc_encrypt(des_cblock *input,des_cblock *output,long length,
 215         des_key_schedule schedule,des_cblock *ivec,int enc);
 216 DES_LONG des_quad_cksum(des_cblock *input,des_cblock *output,
 217         long length,int out_count,des_cblock *seed);
 218 void des_random_seed(des_cblock key);
 219 void des_random_key(des_cblock ret);
 220 int des_read_password(des_cblock *key,char *prompt,int verify);
 221 int des_read_2passwords(des_cblock *key1,des_cblock *key2,
 222         char *prompt,int verify);
 223 int des_read_pw_string(char *buf,int length,char *prompt,int verify);
 224 void des_set_odd_parity(des_cblock *key);
 225 int des_is_weak_key(des_cblock *key);
 226 int des_set_key(des_cblock *key,des_key_schedule schedule);
 227 int des_key_sched(des_cblock *key,des_key_schedule schedule);
 228 void des_string_to_key(char *str,des_cblock *key);
 229 void des_string_to_2keys(char *str,des_cblock *key1,des_cblock *key2);
 230 void des_cfb64_encrypt(unsigned char *in, unsigned char *out, long length,
 231         des_key_schedule schedule, des_cblock *ivec, int *num, int enc);
 232 void des_ofb64_encrypt(unsigned char *in, unsigned char *out, long length,
 233         des_key_schedule schedule, des_cblock *ivec, int *num);
 234 int des_read_pw(char *buf, char *buff, int size, char *prompt, int verify);
 235
 236 /* Extra functions from Mark Murray <mark@grondar.za> */
 237 /* The following functions are not in the normal unix build or the
 238  * SSLeay build.  When using the SSLeay build, use RAND_seed()
 239  * and RAND_bytes() instead. */
 240 int des_new_random_key(des_cblock *key);
 241 void des_init_random_number_generator(des_cblock *key);
 242 void des_set_random_generator_seed(des_cblock *key);
 243 void des_set_sequence_number(des_cblock new_sequence_number);
 244 void des_generate_random_block(des_cblock *block);
 245
 246 #else
 247
 248 char *des_options();
 249 void des_ecb3_encrypt();
 250 DES_LONG des_cbc_cksum();
 251 void des_cbc_encrypt();
 252 void des_ncbc_encrypt();
 253 void des_xcbc_encrypt();
 254 void des_cfb_encrypt();
 255 void des_ede3_cfb64_encrypt();
 256 void des_ede3_ofb64_encrypt();
 257 void des_ecb_encrypt();
 258 void des_encrypt();
 259 void des_encrypt2();
 260 void des_encrypt3();
 261 void des_decrypt3();
 262 void des_ede3_cbc_encrypt();
 263 int des_enc_read();
 264 int des_enc_write();
 265 char *des_fcrypt();
 266 #ifdef PERL5
 267 char *des_crypt();
 268 #else
 269 char *crypt();
 270 #endif
 271 void des_ofb_encrypt();
 272 void des_pcbc_encrypt();
 273 DES_LONG des_quad_cksum();
 274 void des_random_seed();
 275 void des_random_key();
 276 int des_read_password();
 277 int des_read_2passwords();
 278 int des_read_pw_string();
 279 void des_set_odd_parity();
 280 int des_is_weak_key();
 281 int des_set_key();
 282 int des_key_sched();
 283 void des_string_to_key();
 284 void des_string_to_2keys();
 285 void des_cfb64_encrypt();
 286 void des_ofb64_encrypt();
 287 int des_read_pw();
 288 void des_xwhite_in2out();
 289
 290 /* Extra functions from Mark Murray <mark@grondar.za> */
 291 /* The following functions are not in the normal unix build or the
 292  * SSLeay build.  When using the SSLeay build, use RAND_seed()
 293  * and RAND_bytes() instead. */
 294 #ifdef FreeBSD
 295 int des_new_random_key();
 296 void des_init_random_number_generator();
 297 void des_set_random_generator_seed();
 298 void des_set_sequence_number();
 299 void des_generate_random_block();
 300 #endif
 301
 302 #endif
 303
 304 #ifdef  __cplusplus
 305 }
 306 #endif
 307
 308 #endif