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_NEW_DES_H 60 # define HEADER_NEW_DES_H 61 62 # include <openssl/e_os2.h> /* OPENSSL_EXTERN, OPENSSL_NO_DES, DES_LONG 63 * (via openssl/opensslconf.h */ 64 65 #include <sys/types.h> 66 # ifdef OPENSSL_NO_DES 67 # error DES is disabled. 68 # endif 69 70 # ifdef OPENSSL_BUILD_SHLIBCRYPTO 71 # undef OPENSSL_EXTERN 72 # define OPENSSL_EXTERN OPENSSL_EXPORT 73 # endif 74 75 #ifdef __cplusplus 76 extern "C" { 77 #endif 78 79 typedef unsigned char DES_cblock[8]; 80 typedef /* const */ unsigned char const_DES_cblock[8]; 81 /* 82 * With "const", gcc 2.8.1 on Solaris thinks that DES_cblock * and 83 * const_DES_cblock * are incompatible pointer types. 84 */ 85 86 typedef struct DES_ks { 87 union { 88 DES_cblock cblock; 89 /* 90 * make sure things are correct size on machines with 8 byte longs 91 */ 92 DES_LONG deslong[2]; 93 } ks[16]; 94 } DES_key_schedule; 95 96 #if !defined(__NetBSD__) && !defined(__minix) 97 # ifndef OPENSSL_DISABLE_OLD_DES_SUPPORT 98 # ifndef OPENSSL_ENABLE_OLD_DES_SUPPORT 99 # define OPENSSL_ENABLE_OLD_DES_SUPPORT 100 # endif 101 # endif 102 103 # ifdef OPENSSL_ENABLE_OLD_DES_SUPPORT 104 # include <openssl/des_old.h> 105 # endif 106 107 # define DES_KEY_SZ (sizeof(DES_cblock)) 108 # define DES_SCHEDULE_SZ (sizeof(DES_key_schedule)) 109 #else 110 # include <sys/types.h> 111 # define DES_KEY_SZ 8 /* (sizeof(DES_cblock)) */ 112 # define DES_SCHEDULE_SZ 128 /* (sizeof(DES_key_schedule)) */ 113 # define OPENSSL_DISABLE_OLD_DES_SUPPORT 114 #endif 115 116 # define DES_ENCRYPT 1 117 # define DES_DECRYPT 0 118 119 # define DES_CBC_MODE 0 120 # define DES_PCBC_MODE 1 121 122 # define DES_ecb2_encrypt(i,o,k1,k2,e) \ 123 DES_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e)) 124 125 # define DES_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \ 126 DES_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e)) 127 128 # define DES_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \ 129 DES_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e)) 130 131 # define DES_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \ 132 DES_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n)) 133 134 OPENSSL_DECLARE_GLOBAL(int, DES_check_key); /* defaults to false */ 135 # define DES_check_key OPENSSL_GLOBAL_REF(DES_check_key) 136 OPENSSL_DECLARE_GLOBAL(int, DES_rw_mode); /* defaults to DES_PCBC_MODE */ 137 # define DES_rw_mode OPENSSL_GLOBAL_REF(DES_rw_mode) 138 139 const char *DES_options(void); 140 void DES_ecb3_encrypt(const_DES_cblock *input, DES_cblock *output, 141 DES_key_schedule *ks1, DES_key_schedule *ks2, 142 DES_key_schedule *ks3, int enc); 143 DES_LONG DES_cbc_cksum(const unsigned char *input, DES_cblock *output, 144 long length, DES_key_schedule *schedule, 145 const_DES_cblock *ivec); 146 /* DES_cbc_encrypt does not update the IV! Use DES_ncbc_encrypt instead. */ 147 void DES_cbc_encrypt(const unsigned char *input, unsigned char *output, 148 long length, DES_key_schedule *schedule, 149 DES_cblock *ivec, int enc); 150 void DES_ncbc_encrypt(const unsigned char *input, unsigned char *output, 151 long length, DES_key_schedule *schedule, 152 DES_cblock *ivec, int enc); 153 void DES_xcbc_encrypt(const unsigned char *input, unsigned char *output, 154 long length, DES_key_schedule *schedule, 155 DES_cblock *ivec, const_DES_cblock *inw, 156 const_DES_cblock *outw, int enc); 157 void DES_cfb_encrypt(const unsigned char *in, unsigned char *out, int numbits, 158 long length, DES_key_schedule *schedule, 159 DES_cblock *ivec, int enc); 160 void DES_ecb_encrypt(const_DES_cblock *input, DES_cblock *output, 161 DES_key_schedule *ks, int enc); 162 163 /* 164 * This is the DES encryption function that gets called by just about every 165 * other DES routine in the library. You should not use this function except 166 * to implement 'modes' of DES. I say this because the functions that call 167 * this routine do the conversion from 'char *' to long, and this needs to be 168 * done to make sure 'non-aligned' memory access do not occur. The 169 * characters are loaded 'little endian'. Data is a pointer to 2 unsigned 170 * long's and ks is the DES_key_schedule to use. enc, is non zero specifies 171 * encryption, zero if decryption. 172 */ 173 void DES_encrypt1(DES_LONG *data, DES_key_schedule *ks, int enc); 174 175 /* 176 * This functions is the same as DES_encrypt1() except that the DES initial 177 * permutation (IP) and final permutation (FP) have been left out. As for 178 * DES_encrypt1(), you should not use this function. It is used by the 179 * routines in the library that implement triple DES. IP() DES_encrypt2() 180 * DES_encrypt2() DES_encrypt2() FP() is the same as DES_encrypt1() 181 * DES_encrypt1() DES_encrypt1() except faster :-). 182 */ 183 void DES_encrypt2(DES_LONG *data, DES_key_schedule *ks, int enc); 184 185 void DES_encrypt3(DES_LONG *data, DES_key_schedule *ks1, 186 DES_key_schedule *ks2, DES_key_schedule *ks3); 187 void DES_decrypt3(DES_LONG *data, DES_key_schedule *ks1, 188 DES_key_schedule *ks2, DES_key_schedule *ks3); 189 void DES_ede3_cbc_encrypt(const unsigned char *input, unsigned char *output, 190 long length, 191 DES_key_schedule *ks1, DES_key_schedule *ks2, 192 DES_key_schedule *ks3, DES_cblock *ivec, int enc); 193 void DES_ede3_cbcm_encrypt(const unsigned char *in, unsigned char *out, 194 long length, 195 DES_key_schedule *ks1, DES_key_schedule *ks2, 196 DES_key_schedule *ks3, 197 DES_cblock *ivec1, DES_cblock *ivec2, int enc); 198 void DES_ede3_cfb64_encrypt(const unsigned char *in, unsigned char *out, 199 long length, DES_key_schedule *ks1, 200 DES_key_schedule *ks2, DES_key_schedule *ks3, 201 DES_cblock *ivec, int *num, int enc); 202 void DES_ede3_cfb_encrypt(const unsigned char *in, unsigned char *out, 203 int numbits, long length, DES_key_schedule *ks1, 204 DES_key_schedule *ks2, DES_key_schedule *ks3, 205 DES_cblock *ivec, int enc); 206 void DES_ede3_ofb64_encrypt(const unsigned char *in, unsigned char *out, 207 long length, DES_key_schedule *ks1, 208 DES_key_schedule *ks2, DES_key_schedule *ks3, 209 DES_cblock *ivec, int *num); 210 # if 0 211 void DES_xwhite_in2out(const_DES_cblock *DES_key, const_DES_cblock *in_white, 212 DES_cblock *out_white); 213 # endif 214 215 int DES_enc_read(int fd, void *buf, int len, DES_key_schedule *sched, 216 DES_cblock *iv); 217 int DES_enc_write(int fd, const void *buf, int len, DES_key_schedule *sched, 218 DES_cblock *iv); 219 char *DES_fcrypt(const char *buf, const char *salt, char *ret); 220 char *DES_crypt(const char *buf, const char *salt); 221 void DES_ofb_encrypt(const unsigned char *in, unsigned char *out, int numbits, 222 long length, DES_key_schedule *schedule, 223 DES_cblock *ivec); 224 void DES_pcbc_encrypt(const unsigned char *input, unsigned char *output, 225 long length, DES_key_schedule *schedule, 226 DES_cblock *ivec, int enc); 227 DES_LONG DES_quad_cksum(const unsigned char *input, DES_cblock output[], 228 long length, int out_count, DES_cblock *seed); 229 int DES_random_key(DES_cblock *ret); 230 void DES_set_odd_parity(DES_cblock *key); 231 int DES_check_key_parity(const_DES_cblock *key); 232 int DES_is_weak_key(const_DES_cblock *key); 233 /* 234 * DES_set_key (= set_key = DES_key_sched = key_sched) calls 235 * DES_set_key_checked if global variable DES_check_key is set, 236 * DES_set_key_unchecked otherwise. 237 */ 238 int DES_set_key(const_DES_cblock *key, DES_key_schedule *schedule); 239 int DES_key_sched(const_DES_cblock *key, DES_key_schedule *schedule); 240 int DES_set_key_checked(const_DES_cblock *key, DES_key_schedule *schedule); 241 void DES_set_key_unchecked(const_DES_cblock *key, DES_key_schedule *schedule); 242 # ifdef OPENSSL_FIPS 243 void private_DES_set_key_unchecked(const_DES_cblock *key, 244 DES_key_schedule *schedule); 245 # endif 246 void DES_string_to_key(const char *str, DES_cblock *key); 247 void DES_string_to_2keys(const char *str, DES_cblock *key1, DES_cblock *key2); 248 void DES_cfb64_encrypt(const unsigned char *in, unsigned char *out, 249 long length, DES_key_schedule *schedule, 250 DES_cblock *ivec, int *num, int enc); 251 void DES_ofb64_encrypt(const unsigned char *in, unsigned char *out, 252 long length, DES_key_schedule *schedule, 253 DES_cblock *ivec, int *num); 254 255 int DES_read_password(DES_cblock *key, const char *prompt, int verify); 256 int DES_read_2passwords(DES_cblock *key1, DES_cblock *key2, 257 const char *prompt, int verify); 258 259 # define DES_fixup_key_parity DES_set_odd_parity 260 261 #ifdef __cplusplus 262 } 263 #endif 264 265 #endif 266