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 #include <openssl/opensslconf.h> /* DES_LONG */ 71 #include <openssl/e_os2.h> /* OPENSSL_EXTERN */ 72 73 #ifdef __cplusplus 74 extern "C" { 75 #endif 76 77 typedef unsigned char des_cblock[8]; 78 typedef /* const */ unsigned char const_des_cblock[8]; 79 /* With "const", gcc 2.8.1 on Solaris thinks that des_cblock * 80 * and const_des_cblock * are incompatible pointer types. */ 81 82 typedef struct des_ks_struct 83 { 84 union { 85 des_cblock cblock; 86 /* make sure things are correct size on machines with 87 * 8 byte longs */ 88 DES_LONG deslong[2]; 89 } ks; 90 int weak_key; 91 } des_key_schedule[16]; 92 93 #define DES_KEY_SZ (sizeof(des_cblock)) 94 #define DES_SCHEDULE_SZ (sizeof(des_key_schedule)) 95 96 #define DES_ENCRYPT 1 97 #define DES_DECRYPT 0 98 99 #define DES_CBC_MODE 0 100 #define DES_PCBC_MODE 1 101 102 #define des_ecb2_encrypt(i,o,k1,k2,e) \ 103 des_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e)) 104 105 #define des_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \ 106 des_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e)) 107 108 #define des_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \ 109 des_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e)) 110 111 #define des_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \ 112 des_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n)) 113 114 OPENSSL_EXTERN int des_check_key; /* defaults to false */ 115 OPENSSL_EXTERN int des_rw_mode; /* defaults to DES_PCBC_MODE */ 116 OPENSSL_EXTERN int des_set_weak_key_flag; /* set the weak key flag */ 117 118 const char *des_options(void); 119 void des_ecb3_encrypt(const_des_cblock *input, des_cblock *output, 120 des_key_schedule ks1,des_key_schedule ks2, 121 des_key_schedule ks3, int enc); 122 DES_LONG des_cbc_cksum(const unsigned char *input,des_cblock *output, 123 long length,des_key_schedule schedule, 124 const_des_cblock *ivec); 125 /* des_cbc_encrypt does not update the IV! Use des_ncbc_encrypt instead. */ 126 void des_cbc_encrypt(const unsigned char *input,unsigned char *output, 127 long length,des_key_schedule schedule,des_cblock *ivec, 128 int enc); 129 void des_ncbc_encrypt(const unsigned char *input,unsigned char *output, 130 long length,des_key_schedule schedule,des_cblock *ivec, 131 int enc); 132 void des_xcbc_encrypt(const unsigned char *input,unsigned char *output, 133 long length,des_key_schedule schedule,des_cblock *ivec, 134 const_des_cblock *inw,const_des_cblock *outw,int enc); 135 void des_cfb_encrypt(const unsigned char *in,unsigned char *out,int numbits, 136 long length,des_key_schedule schedule,des_cblock *ivec, 137 int enc); 138 void des_ecb_encrypt(const_des_cblock *input,des_cblock *output, 139 des_key_schedule ks,int enc); 140 141 /* This is the DES encryption function that gets called by just about 142 every other DES routine in the library. You should not use this 143 function except to implement 'modes' of DES. I say this because the 144 functions that call this routine do the conversion from 'char *' to 145 long, and this needs to be done to make sure 'non-aligned' memory 146 access do not occur. The characters are loaded 'little endian'. 147 Data is a pointer to 2 unsigned long's and ks is the 148 des_key_schedule to use. enc, is non zero specifies encryption, 149 zero if decryption. */ 150 void des_encrypt1(DES_LONG *data,des_key_schedule ks, int enc); 151 152 /* This functions is the same as des_encrypt1() except that the DES 153 initial permutation (IP) and final permutation (FP) have been left 154 out. As for des_encrypt1(), you should not use this function. 155 It is used by the routines in the library that implement triple DES. 156 IP() des_encrypt2() des_encrypt2() des_encrypt2() FP() is the same 157 as des_encrypt1() des_encrypt1() des_encrypt1() except faster :-). */ 158 void des_encrypt2(DES_LONG *data,des_key_schedule ks, int enc); 159 160 void des_encrypt3(DES_LONG *data, des_key_schedule ks1, 161 des_key_schedule ks2, des_key_schedule ks3); 162 void des_decrypt3(DES_LONG *data, des_key_schedule ks1, 163 des_key_schedule ks2, des_key_schedule ks3); 164 void des_ede3_cbc_encrypt(const unsigned char *input,unsigned char *output, 165 long length, 166 des_key_schedule ks1,des_key_schedule ks2, 167 des_key_schedule ks3,des_cblock *ivec,int enc); 168 void des_ede3_cbcm_encrypt(const unsigned char *in,unsigned char *out, 169 long length, 170 des_key_schedule ks1,des_key_schedule ks2, 171 des_key_schedule ks3, 172 des_cblock *ivec1,des_cblock *ivec2, 173 int enc); 174 void des_ede3_cfb64_encrypt(const unsigned char *in,unsigned char *out, 175 long length,des_key_schedule ks1, 176 des_key_schedule ks2,des_key_schedule ks3, 177 des_cblock *ivec,int *num,int enc); 178 void des_ede3_ofb64_encrypt(const unsigned char *in,unsigned char *out, 179 long length,des_key_schedule ks1, 180 des_key_schedule ks2,des_key_schedule ks3, 181 des_cblock *ivec,int *num); 182 183 void des_xwhite_in2out(const_des_cblock *des_key,const_des_cblock *in_white, 184 des_cblock *out_white); 185 186 int des_enc_read(int fd,void *buf,int len,des_key_schedule sched, 187 des_cblock *iv); 188 int des_enc_write(int fd,const void *buf,int len,des_key_schedule sched, 189 des_cblock *iv); 190 char *des_fcrypt(const char *buf,const char *salt, char *ret); 191 char *des_crypt(const char *buf,const char *salt); 192 #if !defined(PERL5) && !defined(__FreeBSD__) && !defined(NeXT) 193 char *crypt(const char *buf,const char *salt); 194 #endif 195 void des_ofb_encrypt(const unsigned char *in,unsigned char *out,int numbits, 196 long length,des_key_schedule schedule,des_cblock *ivec); 197 void des_pcbc_encrypt(const unsigned char *input,unsigned char *output, 198 long length,des_key_schedule schedule,des_cblock *ivec, 199 int enc); 200 DES_LONG des_quad_cksum(const unsigned char *input,des_cblock output[], 201 long length,int out_count,des_cblock *seed); 202 void des_random_seed(des_cblock *key); 203 int des_random_key(des_cblock *ret); 204 int des_read_password(des_cblock *key,const char *prompt,int verify); 205 int des_read_2passwords(des_cblock *key1,des_cblock *key2, 206 const char *prompt,int verify); 207 int des_read_pw_string(char *buf,int length,const char *prompt,int verify); 208 void des_set_odd_parity(des_cblock *key); 209 int des_check_key_parity(const_des_cblock *key); 210 int des_is_weak_key(const_des_cblock *key); 211 /* des_set_key (= set_key = des_key_sched = key_sched) calls 212 * des_set_key_checked if global variable des_check_key is set, 213 * des_set_key_unchecked otherwise. */ 214 int des_set_key(const_des_cblock *key,des_key_schedule schedule); 215 int des_key_sched(const_des_cblock *key,des_key_schedule schedule); 216 int des_set_key_checked(const_des_cblock *key,des_key_schedule schedule); 217 void des_set_key_unchecked(const_des_cblock *key,des_key_schedule schedule); 218 void des_string_to_key(const char *str,des_cblock *key); 219 void des_string_to_2keys(const char *str,des_cblock *key1,des_cblock *key2); 220 void des_cfb64_encrypt(const unsigned char *in,unsigned char *out,long length, 221 des_key_schedule schedule,des_cblock *ivec,int *num, 222 int enc); 223 void des_ofb64_encrypt(const unsigned char *in,unsigned char *out,long length, 224 des_key_schedule schedule,des_cblock *ivec,int *num); 225 int des_read_pw(char *buf,char *buff,int size,const char *prompt,int verify); 226 227 /* The following definitions provide compatibility with the MIT Kerberos 228 * library. The des_key_schedule structure is not binary compatible. */ 229 230 #define _KERBEROS_DES_H 231 232 #define KRBDES_ENCRYPT DES_ENCRYPT 233 #define KRBDES_DECRYPT DES_DECRYPT 234 235 #ifdef KERBEROS 236 # define ENCRYPT DES_ENCRYPT 237 # define DECRYPT DES_DECRYPT 238 #endif 239 240 #ifndef NCOMPAT 241 # define C_Block des_cblock 242 # define Key_schedule des_key_schedule 243 # define KEY_SZ DES_KEY_SZ 244 # define string_to_key des_string_to_key 245 # define read_pw_string des_read_pw_string 246 # define random_key des_random_key 247 # define pcbc_encrypt des_pcbc_encrypt 248 # define set_key des_set_key 249 # define key_sched des_key_sched 250 # define ecb_encrypt des_ecb_encrypt 251 # define cbc_encrypt des_cbc_encrypt 252 # define ncbc_encrypt des_ncbc_encrypt 253 # define xcbc_encrypt des_xcbc_encrypt 254 # define cbc_cksum des_cbc_cksum 255 # define quad_cksum des_quad_cksum 256 # define check_parity des_check_key_parity 257 #endif 258 259 typedef des_key_schedule bit_64; 260 #define des_fixup_key_parity des_set_odd_parity 261 262 #ifdef __cplusplus 263 } 264 #endif 265 266 #endif 267