crypto/external/bsd/openssl/lib/libdes/des.h

   1 /*      $NetBSD: des.h,v 1.1 2009/07/19 23:30:57 christos Exp $ */
   2
   3 /* crypto/des/des.h */
   4 /* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
   5  * All rights reserved.
   6  *
   7  * This package is an SSL implementation written
   8  * by Eric Young (eay@cryptsoft.com).
   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@cryptsoft.com).
  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@cryptsoft.com)"
  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@cryptsoft.com)"
  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 _KERBEROS_DES_H
  65 #error <openssl/des.h> replaces <kerberos/des.h>.
  66 #endif
  67
  68 #include <sys/types.h>
  69 #define DES_LONG        u_int32_t
  70
  71 #ifdef  __cplusplus
  72 extern "C" {
  73 #endif
  74
  75 typedef unsigned char des_cblock[8];
  76 typedef /* const */ unsigned char const_des_cblock[8];
  77 /* With "const", gcc 2.8.1 on Solaris thinks that des_cblock *
  78  * and const_des_cblock * are incompatible pointer types. */
  79
  80 #define DES_KEY_SZ      8       /*(sizeof(des_cblock))*/
  81 #define DES_SCHEDULE_SZ 128     /*(sizeof(des_key_schedule))*/
  82
  83 typedef DES_LONG des_key_schedule[DES_SCHEDULE_SZ / sizeof(DES_LONG)];
  84
  85 #define DES_ENCRYPT     1
  86 #define DES_DECRYPT     0
  87
  88 #define DES_CBC_MODE    0
  89 #define DES_PCBC_MODE   1
  90
  91 #define des_ecb2_encrypt(i,o,k1,k2,e) \
  92         des_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e))
  93
  94 #define des_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \
  95         des_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e))
  96
  97 #define des_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \
  98         des_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e))
  99
 100 #define des_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \
 101         des_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n))
 102
 103 extern int des_check_key;       /* defaults to false */
 104 extern int des_rw_mode;         /* defaults to DES_PCBC_MODE */
 105 extern int des_set_weak_key_flag; /* set the weak key flag */
 106
 107 const char *des_options(void);
 108 void des_ecb3_encrypt(const_des_cblock *, des_cblock *,
 109                       des_key_schedule,des_key_schedule,
 110                       des_key_schedule, int);
 111 DES_LONG des_cbc_cksum(const unsigned char *,des_cblock *,
 112                        long,des_key_schedule,
 113                        const_des_cblock *);
 114 /* des_cbc_encrypt does not update the IV!  Use des_ncbc_encrypt instead. */
 115 void des_cbc_encrypt(const unsigned char *input,unsigned char *,
 116                      long,des_key_schedule,des_cblock *,
 117                      int);
 118 void des_ncbc_encrypt(const unsigned char *input,unsigned char *,
 119                       long,des_key_schedule,des_cblock *,
 120                       int);
 121 void des_xcbc_encrypt(const unsigned char *input,unsigned char *,
 122                       long,des_key_schedule,des_cblock *,
 123                       const_des_cblock *inw,const_des_cblock *w,int);
 124 void des_cfb_encrypt(const unsigned char *,unsigned char *,int,
 125                      long,des_key_schedule,des_cblock *,
 126                      int);
 127 void des_ecb_encrypt(const_des_cblock *input,des_cblock *,
 128                      des_key_schedule,int);
 129
 130 /*      This is the DES encryption function that gets called by just about
 131         every other DES routine in the library.  You should not use this
 132         function except to implement 'modes' of DES.  I say this because the
 133         functions that call this routine do the conversion from 'char *' to
 134         long, and this needs to be done to make sure 'non-aligned' memory
 135         access do not occur.  The characters are loaded 'little endian'.
 136         Data is a pointer to 2 unsigned long's and ks is the
 137         des_key_schedule to use.  enc, is non zero specifies encryption,
 138         zero if decryption. */
 139 void des_encrypt1(DES_LONG *,des_key_schedule, int);
 140
 141 /*      This functions is the same as des_encrypt1() except that the DES
 142         initial permutation (IP) and final permutation (FP) have been left
 143         out.  As for des_encrypt1(), you should not use this function.
 144         It is used by the routines in the library that implement triple DES.
 145         IP() des_encrypt2() des_encrypt2() des_encrypt2() FP() is the same
 146         as des_encrypt1() des_encrypt1() des_encrypt1() except faster :-). */
 147 void des_encrypt2(DES_LONG *,des_key_schedule, int);
 148
 149 void des_encrypt3(DES_LONG *, des_key_schedule,
 150         des_key_schedule, des_key_schedule);
 151 void des_decrypt3(DES_LONG *, des_key_schedule,
 152         des_key_schedule, des_key_schedule);
 153 void des_ede3_cbc_encrypt(const unsigned char *,unsigned char *,
 154                           long,
 155                           des_key_schedule,des_key_schedule,
 156                           des_key_schedule,des_cblock *,int);
 157 void des_ede3_cbcm_encrypt(const unsigned char *,unsigned char *,
 158                            long,
 159                            des_key_schedule,des_key_schedule,
 160                            des_key_schedule,
 161                            des_cblock *,des_cblock *,
 162                            int);
 163 void des_ede3_cfb64_encrypt(const unsigned char *,unsigned char *,
 164                             long,des_key_schedule,
 165                             des_key_schedule,des_key_schedule,
 166                             des_cblock *,int *,int);
 167 void des_ede3_ofb64_encrypt(const unsigned char *,unsigned char *,
 168                             long,des_key_schedule,
 169                             des_key_schedule,des_key_schedule,
 170                             des_cblock *,int *);
 171
 172 void des_xwhite_in2out(const_des_cblock *des_key,const_des_cblock *in_white,
 173                        des_cblock *_white);
 174
 175 int des_enc_read(int fd,void *,int len,des_key_schedule,
 176                  des_cblock *);
 177 int des_enc_write(int fd,const void *,int len,des_key_schedule,
 178                   des_cblock *);
 179 char *des_fcrypt(const char *,const char *, char *);
 180 char *des_crypt(const char *,const char *);
 181 void des_ofb_encrypt(const unsigned char *,unsigned char *,int,
 182                      long,des_key_schedule,des_cblock *);
 183 void des_pcbc_encrypt(const unsigned char *input,unsigned char *,
 184                       long,des_key_schedule,des_cblock *,
 185                       int);
 186 DES_LONG des_quad_cksum(const unsigned char *,des_cblock [],
 187                         long,int,des_cblock *);
 188 void des_random_seed(des_cblock *);
 189 int des_random_key(des_cblock *);
 190 int des_read_password(des_cblock *,const char *,int);
 191 int des_read_2passwords(des_cblock *,des_cblock *,
 192                         const char *,int);
 193 int des_read_pw_string(char *,int,const char *,int);
 194 void des_set_odd_parity(des_cblock *);
 195 void des_fixup_key_parity(des_cblock *);
 196 int des_check_key_parity(const_des_cblock *);
 197 int des_is_weak_key(const_des_cblock *);
 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. */
 201 int des_set_key(const_des_cblock *,des_key_schedule);
 202 int des_key_sched(const_des_cblock *,des_key_schedule);
 203 int des_set_key_checked(const_des_cblock *,des_key_schedule);
 204 void des_set_key_unchecked(const_des_cblock *,des_key_schedule);
 205 void des_string_to_key(const char *,des_cblock *);
 206 void des_string_to_2keys(const char *,des_cblock *,des_cblock *);
 207 void des_cfb64_encrypt(const unsigned char *,unsigned char *,long,
 208                        des_key_schedule,des_cblock *,int *,
 209                        int);
 210 void des_ofb64_encrypt(const unsigned char *,unsigned char *,long,
 211                        des_key_schedule,des_cblock *,int *);
 212 int des_read_pw(char *,char *,int size,const char *,int);
 213
 214 /* The following functions are not in the normal unix build or the
 215  * SSLeay build.  When using the SSLeay build, use RAND_seed()
 216  * and RAND_bytes() instead. */
 217 int des_new_random_key(des_cblock *);
 218 void des_init_random_number_generator(des_cblock *);
 219 void des_set_random_generator_seed(des_cblock *);
 220
 221 /* The following definitions provide compatibility with the MIT Kerberos
 222  * library. The des_key_schedule structure is not binary compatible. */
 223
 224 #define _KERBEROS_DES_H
 225
 226 #define KRBDES_ENCRYPT DES_ENCRYPT
 227 #define KRBDES_DECRYPT DES_DECRYPT
 228
 229 #ifdef KERBEROS
 230 #  define ENCRYPT DES_ENCRYPT
 231 #  define DECRYPT DES_DECRYPT
 232 #endif
 233
 234 #ifndef NCOMPAT
 235 #  define C_Block des_cblock
 236 #  define Key_schedule des_key_schedule
 237 #  define KEY_SZ DES_KEY_SZ
 238 #  define string_to_key des_string_to_key
 239 #  define read_pw_string des_read_pw_string
 240 #  define random_key des_random_key
 241 #  define pcbc_encrypt des_pcbc_encrypt
 242 #  define set_key des_set_key
 243 #  define key_sched des_key_sched
 244 #  define ecb_encrypt des_ecb_encrypt
 245 #  define cbc_encrypt des_cbc_encrypt
 246 #  define ncbc_encrypt des_ncbc_encrypt
 247 #  define xcbc_encrypt des_xcbc_encrypt
 248 #  define cbc_cksum des_cbc_cksum
 249 #  define quad_cksum des_quad_cksum
 250 #  define check_parity des_check_key_parity
 251 #endif
 252
 253 typedef des_key_schedule bit_64;
 254
 255 #ifdef  __cplusplus
 256 }
 257 #endif
 258
 259 #endif