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 #ifndef _OSCONFIG_DEFINED /* pcg */ 63 #if defined( INC_ALL ) 64 #include "osconfig.h" 65 #else 66 #include "crypt/osconfig.h" 67 #endif /* Compiler-specific includes */ 68 #endif /* _OSCONFIG_DEFINED */ 69 70 #ifdef DES_INT /* pcg */ 71 #define DES_LONG unsigned int 72 #else 73 #define DES_LONG unsigned long 74 #endif /* Alpha */ 75 76 #ifdef NO_DES 77 #error DES is disabled. 78 #endif 79 80 #ifdef _KERBEROS_DES_H 81 #error <openssl/des.h> replaces <kerberos/des.h>. 82 #endif 83 84 #ifdef __cplusplus 85 extern "C" { 86 #endif 87 88 typedef unsigned char des_cblock[8]; 89 typedef /* const */ unsigned char const_des_cblock[8]; 90 /* With "const", gcc 2.8.1 on Solaris thinks that des_cblock * 91 * and const_des_cblock * are incompatible pointer types. */ 92 93 typedef struct des_ks_struct 94 { 95 union { 96 des_cblock cblock; 97 /* make sure things are correct size on machines with 98 * 8 byte longs */ 99 DES_LONG deslong[2]; 100 } ks; 101 int weak_key; 102 } des_key_schedule[16]; 103 104 #define DES_KEY_SZ (sizeof(des_cblock)) 105 #define DES_SCHEDULE_SZ (sizeof(des_key_schedule)) 106 107 #define DES_ENCRYPT 1 108 #define DES_DECRYPT 0 109 110 #define DES_CBC_MODE 0 111 #define DES_PCBC_MODE 1 112 113 #define des_ecb2_encrypt(i,o,k1,k2,e) \ 114 des_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e)) 115 116 #define des_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \ 117 des_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e)) 118 119 #define des_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \ 120 des_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e)) 121 122 #define des_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \ 123 des_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n)) 124 125 extern int des_check_key; /* defaults to false */ 126 extern int des_rw_mode; /* defaults to DES_PCBC_MODE */ 127 extern int des_set_weak_key_flag; /* set the weak key flag */ 128 129 const char *des_options(void); 130 void des_ecb3_encrypt(const_des_cblock *input, des_cblock *output, 131 des_key_schedule ks1,des_key_schedule ks2, 132 des_key_schedule ks3, int enc); 133 DES_LONG des_cbc_cksum(const unsigned char *input,des_cblock *output, 134 long length,des_key_schedule schedule, 135 const_des_cblock *ivec); 136 /* des_cbc_encrypt does not update the IV! Use des_ncbc_encrypt instead. */ 137 void des_cbc_encrypt(const unsigned char *input,unsigned char *output, 138 long length,des_key_schedule schedule,des_cblock *ivec, 139 int enc); 140 void ASM_EXPORT des_ncbc_encrypt(const unsigned char *input,unsigned char *output, 141 long length,des_key_schedule schedule,des_cblock *ivec, 142 int enc); /* pcg */ 143 void des_xcbc_encrypt(const unsigned char *input,unsigned char *output, 144 long length,des_key_schedule schedule,des_cblock *ivec, 145 const_des_cblock *inw,const_des_cblock *outw,int enc); 146 void des_cfb_encrypt(const unsigned char *in,unsigned char *out,int numbits, 147 long length,des_key_schedule schedule,des_cblock *ivec, 148 int enc); 149 void des_ecb_encrypt(const_des_cblock *input,des_cblock *output, 150 des_key_schedule ks,int enc); 151 152 /* This is the DES encryption function that gets called by just about 153 every other DES routine in the library. You should not use this 154 function except to implement 'modes' of DES. I say this because the 155 functions that call this routine do the conversion from 'char *' to 156 long, and this needs to be done to make sure 'non-aligned' memory 157 access do not occur. The characters are loaded 'little endian'. 158 Data is a pointer to 2 unsigned long's and ks is the 159 des_key_schedule to use. enc, is non zero specifies encryption, 160 zero if decryption. */ 161 void ASM_EXPORT des_encrypt1(DES_LONG *data,des_key_schedule ks, int enc); /* pcg */ 162 163 /* This functions is the same as des_encrypt1() except that the DES 164 initial permutation (IP) and final permutation (FP) have been left 165 out. As for des_encrypt1(), you should not use this function. 166 It is used by the routines in the library that implement triple DES. 167 IP() des_encrypt2() des_encrypt2() des_encrypt2() FP() is the same 168 as des_encrypt1() des_encrypt1() des_encrypt1() except faster :-). */ 169 void des_encrypt2(DES_LONG *data,des_key_schedule ks, int enc); 170 171 void ASM_EXPORT des_encrypt3(DES_LONG *data, des_key_schedule ks1, /* pcg */ 172 des_key_schedule ks2, des_key_schedule ks3); 173 void ASM_EXPORT des_decrypt3(DES_LONG *data, des_key_schedule ks1, /* pcg */ 174 des_key_schedule ks2, des_key_schedule ks3); 175 void des_ede3_cbc_encrypt(const unsigned char *input,unsigned char *output, 176 long length, 177 des_key_schedule ks1,des_key_schedule ks2, 178 des_key_schedule ks3,des_cblock *ivec,int enc); /* pcg */ 179 void des_ede3_cbcm_encrypt(const unsigned char *in,unsigned char *out, 180 long length, 181 des_key_schedule ks1,des_key_schedule ks2, 182 des_key_schedule ks3, 183 des_cblock *ivec1,des_cblock *ivec2, 184 int enc); 185 void des_ede3_cfb64_encrypt(const unsigned char *in,unsigned char *out, 186 long length,des_key_schedule ks1, 187 des_key_schedule ks2,des_key_schedule ks3, 188 des_cblock *ivec,int *num,int enc); 189 void des_ede3_ofb64_encrypt(const unsigned char *in,unsigned char *out, 190 long length,des_key_schedule ks1, 191 des_key_schedule ks2,des_key_schedule ks3, 192 des_cblock *ivec,int *num); 193 194 void des_xwhite_in2out(const_des_cblock *des_key,const_des_cblock *in_white, 195 des_cblock *out_white); 196 197 int des_enc_read(int fd,void *buf,int len,des_key_schedule sched, 198 des_cblock *iv); 199 int des_enc_write(int fd,const void *buf,int len,des_key_schedule sched, 200 des_cblock *iv); 201 char *des_fcrypt(const char *buf,const char *salt, char *ret); 202 char *des_crypt(const char *buf,const char *salt); 203 #if !defined(PERL5) && !(defined(__FreeBSD__)||defined(__DragonFly__)) && !defined(NeXT) 204 char *crypt(const char *buf,const char *salt); 205 #endif 206 void des_ofb_encrypt(const unsigned char *in,unsigned char *out,int numbits, 207 long length,des_key_schedule schedule,des_cblock *ivec); 208 void des_pcbc_encrypt(const unsigned char *input,unsigned char *output, 209 long length,des_key_schedule schedule,des_cblock *ivec, 210 int enc); 211 DES_LONG des_quad_cksum(const unsigned char *input,des_cblock output[], 212 long length,int out_count,des_cblock *seed); 213 void des_random_seed(des_cblock *key); 214 int des_random_key(des_cblock *ret); 215 int des_read_password(des_cblock *key,const char *prompt,int verify); 216 int des_read_2passwords(des_cblock *key1,des_cblock *key2, 217 const char *prompt,int verify); 218 int des_read_pw_string(char *buf,int length,const char *prompt,int verify); 219 void des_set_odd_parity(des_cblock *key); 220 int des_check_key_parity(const_des_cblock *key); 221 int des_is_weak_key(const_des_cblock *key); 222 /* des_set_key (= set_key = des_key_sched = key_sched) calls 223 * des_set_key_checked if global variable des_check_key is set, 224 * des_set_key_unchecked otherwise. */ 225 int des_set_key(const_des_cblock *key,des_key_schedule schedule); 226 int des_key_sched(const_des_cblock *key,des_key_schedule schedule); 227 int des_set_key_checked(const_des_cblock *key,des_key_schedule schedule); 228 void des_set_key_unchecked(const_des_cblock *key,des_key_schedule schedule); 229 void des_string_to_key(const char *str,des_cblock *key); 230 void des_string_to_2keys(const char *str,des_cblock *key1,des_cblock *key2); 231 void des_cfb64_encrypt(const unsigned char *in,unsigned char *out,long length, 232 des_key_schedule schedule,des_cblock *ivec,int *num, 233 int enc); 234 void des_ofb64_encrypt(const unsigned char *in,unsigned char *out,long length, 235 des_key_schedule schedule,des_cblock *ivec,int *num); 236 int des_read_pw(char *buf,char *buff,int size,const char *prompt,int verify); 237 238 /* The following definitions provide compatibility with the MIT Kerberos 239 * library. The des_key_schedule structure is not binary compatible. */ 240 241 #define _KERBEROS_DES_H 242 243 #define KRBDES_ENCRYPT DES_ENCRYPT 244 #define KRBDES_DECRYPT DES_DECRYPT 245 246 #ifdef KERBEROS 247 # define ENCRYPT DES_ENCRYPT 248 # define DECRYPT DES_DECRYPT 249 #endif 250 251 #ifndef NCOMPAT 252 # define C_Block des_cblock 253 # define Key_schedule des_key_schedule 254 # define KEY_SZ DES_KEY_SZ 255 # define string_to_key des_string_to_key 256 # define read_pw_string des_read_pw_string 257 # define random_key des_random_key 258 # define pcbc_encrypt des_pcbc_encrypt 259 # define set_key des_set_key 260 # define key_sched des_key_sched 261 # define ecb_encrypt des_ecb_encrypt 262 # define cbc_encrypt des_cbc_encrypt 263 # define ncbc_encrypt des_ncbc_encrypt 264 # define xcbc_encrypt des_xcbc_encrypt 265 # define cbc_cksum des_cbc_cksum 266 # define quad_cksum des_quad_cksum 267 # define check_parity des_check_key_parity 268 #endif 269 270 typedef des_key_schedule bit_64; 271 #define des_fixup_key_parity des_set_odd_parity 272 273 #ifdef __cplusplus 274 } 275 #endif 276 277 #endif 278