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 260