1 /* crypto/des/des.h */ 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 #ifndef HEADER_DES_H 60 #define HEADER_DES_H 61 62 #ifdef NO_DES 63 #error DES is disabled. 64 #endif 65 66 #ifdef _KERBEROS_DES_H 67 #error <openssl/des.h> replaces <kerberos/des.h>. 68 #endif 69 70 #define DES_LONG unsigned long 71 #define DES_LONG_SIZE "long" 72 /* #include "opensslconf.h" */ /* DES_LONG */ 73 74 #if defined(VMS) && !defined(__DECC) 75 # define OPENSSL_EXTERN globalref 76 # define OPENSSL_GLOBAL globaldef 77 #else 78 # define OPENSSL_EXTERN extern 79 # define OPENSSL_GLOBAL 80 #endif 81 /* #include "e_os2.h" */ /* OPENSSL_EXTERN */ 82 83 #ifdef __cplusplus 84 extern "C" { 85 #endif 86 87 typedef unsigned char des_cblock[8]; 88 typedef /* const */ unsigned char const_des_cblock[8]; 89 /* With "const", gcc 2.8.1 on Solaris thinks that des_cblock * 90 * and const_des_cblock * are incompatible pointer types. */ 91 92 typedef struct des_ks_struct 93 { 94 union { 95 des_cblock cblock; 96 /* make sure things are correct size on machines with 97 * 8 byte longs */ 98 DES_LONG deslong[2]; 99 } ks; 100 int weak_key; 101 } des_key_schedule[16]; 102 103 #define DES_KEY_SZ (sizeof(des_cblock)) 104 #define DES_SCHEDULE_SZ (sizeof(des_key_schedule)) 105 106 #define DES_ENCRYPT 1 107 #define DES_DECRYPT 0 108 109 #define DES_CBC_MODE 0 110 #define DES_PCBC_MODE 1 111 112 #define des_ecb2_encrypt(i,o,k1,k2,e) \ 113 des_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e)) 114 115 #define des_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \ 116 des_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e)) 117 118 #define des_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \ 119 des_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e)) 120 121 #define des_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \ 122 des_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n)) 123 124 OPENSSL_EXTERN int des_check_key; /* defaults to false */ 125 OPENSSL_EXTERN int des_rw_mode; /* defaults to DES_PCBC_MODE */ 126 OPENSSL_EXTERN int des_set_weak_key_flag; /* set the weak key flag */ 127 128 const char *des_options(void); 129 void des_ecb3_encrypt(const_des_cblock *input, des_cblock *output, 130 des_key_schedule ks1,des_key_schedule ks2, 131 des_key_schedule ks3, int enc); 132 DES_LONG des_cbc_cksum(const unsigned char *input,des_cblock *output, 133 long length,des_key_schedule schedule, 134 const_des_cblock *ivec); 135 /* des_cbc_encrypt does not update the IV! Use des_ncbc_encrypt instead. */ 136 void des_cbc_encrypt(const unsigned char *input,unsigned char *output, 137 long length,des_key_schedule schedule,des_cblock *ivec, 138 int enc); 139 void des_ncbc_encrypt(const unsigned char *input,unsigned char *output, 140 long length,des_key_schedule schedule,des_cblock *ivec, 141 int enc); 142 void des_xcbc_encrypt(const unsigned char *input,unsigned char *output, 143 long length,des_key_schedule schedule,des_cblock *ivec, 144 const_des_cblock *inw,const_des_cblock *outw,int enc); 145 void des_cfb_encrypt(const unsigned char *in,unsigned char *out,int numbits, 146 long length,des_key_schedule schedule,des_cblock *ivec, 147 int enc); 148 void des_ecb_encrypt(const_des_cblock *input,des_cblock *output, 149 des_key_schedule ks,int enc); 150 151 /* This is the DES encryption function that gets called by just about 152 every other DES routine in the library. You should not use this 153 function except to implement 'modes' of DES. I say this because the 154 functions that call this routine do the conversion from 'char *' to 155 long, and this needs to be done to make sure 'non-aligned' memory 156 access do not occur. The characters are loaded 'little endian'. 157 Data is a pointer to 2 unsigned long's and ks is the 158 des_key_schedule to use. enc, is non zero specifies encryption, 159 zero if decryption. */ 160 void des_encrypt(DES_LONG *data,des_key_schedule ks, int enc); 161 162 /* This functions is the same as des_encrypt() except that the DES 163 initial permutation (IP) and final permutation (FP) have been left 164 out. As for des_encrypt(), you should not use this function. 165 It is used by the routines in the library that implement triple DES. 166 IP() des_encrypt2() des_encrypt2() des_encrypt2() FP() is the same 167 as des_encrypt() des_encrypt() des_encrypt() except faster :-). */ 168 void des_encrypt2(DES_LONG *data,des_key_schedule ks, int enc); 169 170 void des_encrypt3(DES_LONG *data, des_key_schedule ks1, 171 des_key_schedule ks2, des_key_schedule ks3); 172 void des_decrypt3(DES_LONG *data, des_key_schedule ks1, 173 des_key_schedule ks2, des_key_schedule ks3); 174 void des_ede3_cbc_encrypt(const unsigned char *input,unsigned char *output, 175 long length, 176 des_key_schedule ks1,des_key_schedule ks2, 177 des_key_schedule ks3,des_cblock *ivec,int enc); 178 void des_ede3_cbcm_encrypt(const unsigned char *in,unsigned char *out, 179 long length, 180 des_key_schedule ks1,des_key_schedule ks2, 181 des_key_schedule ks3, 182 des_cblock *ivec1,des_cblock *ivec2, 183 int enc); 184 void des_ede3_cfb64_encrypt(const unsigned char *in,unsigned char *out, 185 long length,des_key_schedule ks1, 186 des_key_schedule ks2,des_key_schedule ks3, 187 des_cblock *ivec,int *num,int enc); 188 void des_ede3_ofb64_encrypt(const unsigned char *in,unsigned char *out, 189 long length,des_key_schedule ks1, 190 des_key_schedule ks2,des_key_schedule ks3, 191 des_cblock *ivec,int *num); 192 193 void des_xwhite_in2out(const_des_cblock *des_key,const_des_cblock *in_white, 194 des_cblock *out_white); 195 196 int des_enc_read(int fd,void *buf,int len,des_key_schedule sched, 197 des_cblock *iv); 198 int des_enc_write(int fd,const void *buf,int len,des_key_schedule sched, 199 des_cblock *iv); 200 char *des_fcrypt(const char *buf,const char *salt, char *ret); 201 char *des_crypt(const char *buf,const char *salt); 202 #if !defined(PERL5) && !defined(__FreeBSD__) && !defined(NeXT) 203 char *crypt(const char *buf,const char *salt); 204 #endif 205 void des_ofb_encrypt(const unsigned char *in,unsigned char *out,int numbits, 206 long length,des_key_schedule schedule,des_cblock *ivec); 207 void des_pcbc_encrypt(const unsigned char *input,unsigned char *output, 208 long length,des_key_schedule schedule,des_cblock *ivec, 209 int enc); 210 DES_LONG des_quad_cksum(const unsigned char *input,des_cblock output[], 211 long length,int out_count,des_cblock *seed); 212 void des_random_seed(des_cblock *key); 213 int des_random_key(des_cblock *ret); 214 int des_read_password(des_cblock *key,const char *prompt,int verify); 215 int des_read_2passwords(des_cblock *key1,des_cblock *key2, 216 const char *prompt,int verify); 217 int des_read_pw_string(char *buf,int length,const char *prompt,int verify); 218 void des_set_odd_parity(des_cblock *key); 219 int des_check_key_parity(const_des_cblock *key); 220 int des_is_weak_key(const_des_cblock *key); 221 /* des_set_key (= set_key = des_key_sched = key_sched) calls 222 * des_set_key_checked if global variable des_check_key is set, 223 * des_set_key_unchecked otherwise. */ 224 int des_set_key(const_des_cblock *key,des_key_schedule schedule); 225 int des_key_sched(const_des_cblock *key,des_key_schedule schedule); 226 int des_set_key_checked(const_des_cblock *key,des_key_schedule schedule); 227 void des_set_key_unchecked(const_des_cblock *key,des_key_schedule schedule); 228 void des_string_to_key(const char *str,des_cblock *key); 229 void des_string_to_2keys(const char *str,des_cblock *key1,des_cblock *key2); 230 void des_cfb64_encrypt(const unsigned char *in,unsigned char *out,long length, 231 des_key_schedule schedule,des_cblock *ivec,int *num, 232 int enc); 233 void des_ofb64_encrypt(const unsigned char *in,unsigned char *out,long length, 234 des_key_schedule schedule,des_cblock *ivec,int *num); 235 int des_read_pw(char *buf,char *buff,int size,const char *prompt,int verify); 236 237 /* The following definitions provide compatibility with the MIT Kerberos 238 * library. The des_key_schedule structure is not binary compatible. */ 239 240 #define _KERBEROS_DES_H 241 242 #define KRBDES_ENCRYPT DES_ENCRYPT 243 #define KRBDES_DECRYPT DES_DECRYPT 244 245 #ifdef KERBEROS 246 # define ENCRYPT DES_ENCRYPT 247 # define DECRYPT DES_DECRYPT 248 #endif 249 250 #ifndef NCOMPAT 251 # define C_Block des_cblock 252 # define Key_schedule des_key_schedule 253 # define KEY_SZ DES_KEY_SZ 254 # define string_to_key des_string_to_key 255 # define read_pw_string des_read_pw_string 256 # define random_key des_random_key 257 # define pcbc_encrypt des_pcbc_encrypt 258 # define set_key des_set_key 259 # define key_sched des_key_sched 260 # define ecb_encrypt des_ecb_encrypt 261 # define cbc_encrypt des_cbc_encrypt 262 # define ncbc_encrypt des_ncbc_encrypt 263 # define xcbc_encrypt des_xcbc_encrypt 264 # define cbc_cksum des_cbc_cksum 265 # define quad_cksum des_quad_cksum 266 # define check_parity des_check_key_parity 267 #endif 268 269 typedef des_key_schedule bit_64; 270 #define des_fixup_key_parity des_set_odd_parity 271 272 #ifdef __cplusplus 273 } 274 #endif 275 276 #endif 277