Cryptlib/Include/openssl/des.h

   1 /*
   2  * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #ifndef HEADER_DES_H
  11 # define HEADER_DES_H
  12
  13 # include <openssl/opensslconf.h>
  14
  15 # ifndef OPENSSL_NO_DES
  16 # ifdef  __cplusplus
  17 extern "C" {
  18 # endif
  19 # include <openssl/e_os2.h>
  20
  21 typedef unsigned int DES_LONG;
  22
  23 # ifdef OPENSSL_BUILD_SHLIBCRYPTO
  24 #  undef OPENSSL_EXTERN
  25 #  define OPENSSL_EXTERN OPENSSL_EXPORT
  26 # endif
  27
  28 typedef unsigned char DES_cblock[8];
  29 typedef /* const */ unsigned char const_DES_cblock[8];
  30 /*
  31  * With "const", gcc 2.8.1 on Solaris thinks that DES_cblock * and
  32  * const_DES_cblock * are incompatible pointer types.
  33  */
  34
  35 typedef struct DES_ks {
  36     union {
  37         DES_cblock cblock;
  38         /*
  39          * make sure things are correct size on machines with 8 byte longs
  40          */
  41         DES_LONG deslong[2];
  42     } ks[16];
  43 } DES_key_schedule;
  44
  45 # define DES_KEY_SZ      (sizeof(DES_cblock))
  46 # define DES_SCHEDULE_SZ (sizeof(DES_key_schedule))
  47
  48 # define DES_ENCRYPT     1
  49 # define DES_DECRYPT     0
  50
  51 # define DES_CBC_MODE    0
  52 # define DES_PCBC_MODE   1
  53
  54 # define DES_ecb2_encrypt(i,o,k1,k2,e) \
  55         DES_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e))
  56
  57 # define DES_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \
  58         DES_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e))
  59
  60 # define DES_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \
  61         DES_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e))
  62
  63 # define DES_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \
  64         DES_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n))
  65
  66 OPENSSL_DECLARE_GLOBAL(int, DES_check_key); /* defaults to false */
  67 # define DES_check_key OPENSSL_GLOBAL_REF(DES_check_key)
  68
  69 const char *DES_options(void);
  70 void DES_ecb3_encrypt(const_DES_cblock *input, DES_cblock *output,
  71                       DES_key_schedule *ks1, DES_key_schedule *ks2,
  72                       DES_key_schedule *ks3, int enc);
  73 DES_LONG DES_cbc_cksum(const unsigned char *input, DES_cblock *output,
  74                        long length, DES_key_schedule *schedule,
  75                        const_DES_cblock *ivec);
  76 /* DES_cbc_encrypt does not update the IV!  Use DES_ncbc_encrypt instead. */
  77 void DES_cbc_encrypt(const unsigned char *input, unsigned char *output,
  78                      long length, DES_key_schedule *schedule,
  79                      DES_cblock *ivec, int enc);
  80 void DES_ncbc_encrypt(const unsigned char *input, unsigned char *output,
  81                       long length, DES_key_schedule *schedule,
  82                       DES_cblock *ivec, int enc);
  83 void DES_xcbc_encrypt(const unsigned char *input, unsigned char *output,
  84                       long length, DES_key_schedule *schedule,
  85                       DES_cblock *ivec, const_DES_cblock *inw,
  86                       const_DES_cblock *outw, int enc);
  87 void DES_cfb_encrypt(const unsigned char *in, unsigned char *out, int numbits,
  88                      long length, DES_key_schedule *schedule,
  89                      DES_cblock *ivec, int enc);
  90 void DES_ecb_encrypt(const_DES_cblock *input, DES_cblock *output,
  91                      DES_key_schedule *ks, int enc);
  92
  93 /*
  94  * This is the DES encryption function that gets called by just about every
  95  * other DES routine in the library.  You should not use this function except
  96  * to implement 'modes' of DES.  I say this because the functions that call
  97  * this routine do the conversion from 'char *' to long, and this needs to be
  98  * done to make sure 'non-aligned' memory access do not occur.  The
  99  * characters are loaded 'little endian'. Data is a pointer to 2 unsigned
 100  * long's and ks is the DES_key_schedule to use.  enc, is non zero specifies
 101  * encryption, zero if decryption.
 102  */
 103 void DES_encrypt1(DES_LONG *data, DES_key_schedule *ks, int enc);
 104
 105 /*
 106  * This functions is the same as DES_encrypt1() except that the DES initial
 107  * permutation (IP) and final permutation (FP) have been left out.  As for
 108  * DES_encrypt1(), you should not use this function. It is used by the
 109  * routines in the library that implement triple DES. IP() DES_encrypt2()
 110  * DES_encrypt2() DES_encrypt2() FP() is the same as DES_encrypt1()
 111  * DES_encrypt1() DES_encrypt1() except faster :-).
 112  */
 113 void DES_encrypt2(DES_LONG *data, DES_key_schedule *ks, int enc);
 114
 115 void DES_encrypt3(DES_LONG *data, DES_key_schedule *ks1,
 116                   DES_key_schedule *ks2, DES_key_schedule *ks3);
 117 void DES_decrypt3(DES_LONG *data, DES_key_schedule *ks1,
 118                   DES_key_schedule *ks2, DES_key_schedule *ks3);
 119 void DES_ede3_cbc_encrypt(const unsigned char *input, unsigned char *output,
 120                           long length,
 121                           DES_key_schedule *ks1, DES_key_schedule *ks2,
 122                           DES_key_schedule *ks3, DES_cblock *ivec, int enc);
 123 void DES_ede3_cfb64_encrypt(const unsigned char *in, unsigned char *out,
 124                             long length, DES_key_schedule *ks1,
 125                             DES_key_schedule *ks2, DES_key_schedule *ks3,
 126                             DES_cblock *ivec, int *num, int enc);
 127 void DES_ede3_cfb_encrypt(const unsigned char *in, unsigned char *out,
 128                           int numbits, long length, DES_key_schedule *ks1,
 129                           DES_key_schedule *ks2, DES_key_schedule *ks3,
 130                           DES_cblock *ivec, int enc);
 131 void DES_ede3_ofb64_encrypt(const unsigned char *in, unsigned char *out,
 132                             long length, DES_key_schedule *ks1,
 133                             DES_key_schedule *ks2, DES_key_schedule *ks3,
 134                             DES_cblock *ivec, int *num);
 135 char *DES_fcrypt(const char *buf, const char *salt, char *ret);
 136 char *DES_crypt(const char *buf, const char *salt);
 137 void DES_ofb_encrypt(const unsigned char *in, unsigned char *out, int numbits,
 138                      long length, DES_key_schedule *schedule,
 139                      DES_cblock *ivec);
 140 void DES_pcbc_encrypt(const unsigned char *input, unsigned char *output,
 141                       long length, DES_key_schedule *schedule,
 142                       DES_cblock *ivec, int enc);
 143 DES_LONG DES_quad_cksum(const unsigned char *input, DES_cblock output[],
 144                         long length, int out_count, DES_cblock *seed);
 145 int DES_random_key(DES_cblock *ret);
 146 void DES_set_odd_parity(DES_cblock *key);
 147 int DES_check_key_parity(const_DES_cblock *key);
 148 int DES_is_weak_key(const_DES_cblock *key);
 149 /*
 150  * DES_set_key (= set_key = DES_key_sched = key_sched) calls
 151  * DES_set_key_checked if global variable DES_check_key is set,
 152  * DES_set_key_unchecked otherwise.
 153  */
 154 int DES_set_key(const_DES_cblock *key, DES_key_schedule *schedule);
 155 int DES_key_sched(const_DES_cblock *key, DES_key_schedule *schedule);
 156 int DES_set_key_checked(const_DES_cblock *key, DES_key_schedule *schedule);
 157 void DES_set_key_unchecked(const_DES_cblock *key, DES_key_schedule *schedule);
 158 void DES_string_to_key(const char *str, DES_cblock *key);
 159 void DES_string_to_2keys(const char *str, DES_cblock *key1, DES_cblock *key2);
 160 void DES_cfb64_encrypt(const unsigned char *in, unsigned char *out,
 161                        long length, DES_key_schedule *schedule,
 162                        DES_cblock *ivec, int *num, int enc);
 163 void DES_ofb64_encrypt(const unsigned char *in, unsigned char *out,
 164                        long length, DES_key_schedule *schedule,
 165                        DES_cblock *ivec, int *num);
 166
 167 # define DES_fixup_key_parity DES_set_odd_parity
 168
 169 # ifdef  __cplusplus
 170 }
 171 # endif
 172 # endif
 173
 174 #endif