des.h revision 296465
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# ifdef OPENSSL_NO_DES 66# error DES is disabled. 67# endif 68 69# ifdef OPENSSL_BUILD_SHLIBCRYPTO 70# undef OPENSSL_EXTERN 71# define OPENSSL_EXTERN OPENSSL_EXPORT 72# endif 73 74#ifdef __cplusplus 75extern "C" { 76#endif 77 78typedef unsigned char DES_cblock[8]; 79typedef /* const */ unsigned char const_DES_cblock[8]; 80/* 81 * With "const", gcc 2.8.1 on Solaris thinks that DES_cblock * and 82 * const_DES_cblock * are incompatible pointer types. 83 */ 84 85typedef struct DES_ks { 86 union { 87 DES_cblock cblock; 88 /* 89 * make sure things are correct size on machines with 8 byte longs 90 */ 91 DES_LONG deslong[2]; 92 } ks[16]; 93} DES_key_schedule; 94 95# ifndef OPENSSL_DISABLE_OLD_DES_SUPPORT 96# ifndef OPENSSL_ENABLE_OLD_DES_SUPPORT 97# define OPENSSL_ENABLE_OLD_DES_SUPPORT 98# endif 99# endif 100 101# ifdef OPENSSL_ENABLE_OLD_DES_SUPPORT 102# include <openssl/des_old.h> 103# endif 104 105# define DES_KEY_SZ (sizeof(DES_cblock)) 106# define DES_SCHEDULE_SZ (sizeof(DES_key_schedule)) 107 108# define DES_ENCRYPT 1 109# define DES_DECRYPT 0 110 111# define DES_CBC_MODE 0 112# define DES_PCBC_MODE 1 113 114# define DES_ecb2_encrypt(i,o,k1,k2,e) \ 115 DES_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e)) 116 117# define DES_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \ 118 DES_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e)) 119 120# define DES_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \ 121 DES_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e)) 122 123# define DES_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \ 124 DES_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n)) 125 126OPENSSL_DECLARE_GLOBAL(int, DES_check_key); /* defaults to false */ 127# define DES_check_key OPENSSL_GLOBAL_REF(DES_check_key) 128OPENSSL_DECLARE_GLOBAL(int, DES_rw_mode); /* defaults to DES_PCBC_MODE */ 129# define DES_rw_mode OPENSSL_GLOBAL_REF(DES_rw_mode) 130 131const char *DES_options(void); 132void DES_ecb3_encrypt(const_DES_cblock *input, DES_cblock *output, 133 DES_key_schedule *ks1, DES_key_schedule *ks2, 134 DES_key_schedule *ks3, int enc); 135DES_LONG DES_cbc_cksum(const unsigned char *input, DES_cblock *output, 136 long length, DES_key_schedule *schedule, 137 const_DES_cblock *ivec); 138/* DES_cbc_encrypt does not update the IV! Use DES_ncbc_encrypt instead. */ 139void DES_cbc_encrypt(const unsigned char *input, unsigned char *output, 140 long length, DES_key_schedule *schedule, 141 DES_cblock *ivec, int enc); 142void DES_ncbc_encrypt(const unsigned char *input, unsigned char *output, 143 long length, DES_key_schedule *schedule, 144 DES_cblock *ivec, int enc); 145void DES_xcbc_encrypt(const unsigned char *input, unsigned char *output, 146 long length, DES_key_schedule *schedule, 147 DES_cblock *ivec, const_DES_cblock *inw, 148 const_DES_cblock *outw, int enc); 149void DES_cfb_encrypt(const unsigned char *in, unsigned char *out, int numbits, 150 long length, DES_key_schedule *schedule, 151 DES_cblock *ivec, int enc); 152void DES_ecb_encrypt(const_DES_cblock *input, DES_cblock *output, 153 DES_key_schedule *ks, int enc); 154 155/* 156 * This is the DES encryption function that gets called by just about every 157 * other DES routine in the library. You should not use this function except 158 * to implement 'modes' of DES. I say this because the functions that call 159 * this routine do the conversion from 'char *' to long, and this needs to be 160 * done to make sure 'non-aligned' memory access do not occur. The 161 * characters are loaded 'little endian'. Data is a pointer to 2 unsigned 162 * long's and ks is the DES_key_schedule to use. enc, is non zero specifies 163 * encryption, zero if decryption. 164 */ 165void DES_encrypt1(DES_LONG *data, DES_key_schedule *ks, int enc); 166 167/* 168 * This functions is the same as DES_encrypt1() except that the DES initial 169 * permutation (IP) and final permutation (FP) have been left out. As for 170 * DES_encrypt1(), you should not use this function. It is used by the 171 * routines in the library that implement triple DES. IP() DES_encrypt2() 172 * DES_encrypt2() DES_encrypt2() FP() is the same as DES_encrypt1() 173 * DES_encrypt1() DES_encrypt1() except faster :-). 174 */ 175void DES_encrypt2(DES_LONG *data, DES_key_schedule *ks, int enc); 176 177void DES_encrypt3(DES_LONG *data, DES_key_schedule *ks1, 178 DES_key_schedule *ks2, DES_key_schedule *ks3); 179void DES_decrypt3(DES_LONG *data, DES_key_schedule *ks1, 180 DES_key_schedule *ks2, DES_key_schedule *ks3); 181void DES_ede3_cbc_encrypt(const unsigned char *input, unsigned char *output, 182 long length, 183 DES_key_schedule *ks1, DES_key_schedule *ks2, 184 DES_key_schedule *ks3, DES_cblock *ivec, int enc); 185void DES_ede3_cbcm_encrypt(const unsigned char *in, unsigned char *out, 186 long length, 187 DES_key_schedule *ks1, DES_key_schedule *ks2, 188 DES_key_schedule *ks3, 189 DES_cblock *ivec1, DES_cblock *ivec2, int enc); 190void DES_ede3_cfb64_encrypt(const unsigned char *in, unsigned char *out, 191 long length, DES_key_schedule *ks1, 192 DES_key_schedule *ks2, DES_key_schedule *ks3, 193 DES_cblock *ivec, int *num, int enc); 194void DES_ede3_cfb_encrypt(const unsigned char *in, unsigned char *out, 195 int numbits, long length, DES_key_schedule *ks1, 196 DES_key_schedule *ks2, DES_key_schedule *ks3, 197 DES_cblock *ivec, int enc); 198void DES_ede3_ofb64_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); 202# if 0 203void DES_xwhite_in2out(const_DES_cblock *DES_key, const_DES_cblock *in_white, 204 DES_cblock *out_white); 205# endif 206 207int DES_enc_read(int fd, void *buf, int len, DES_key_schedule *sched, 208 DES_cblock *iv); 209int DES_enc_write(int fd, const void *buf, int len, DES_key_schedule *sched, 210 DES_cblock *iv); 211char *DES_fcrypt(const char *buf, const char *salt, char *ret); 212char *DES_crypt(const char *buf, const char *salt); 213void DES_ofb_encrypt(const unsigned char *in, unsigned char *out, int numbits, 214 long length, DES_key_schedule *schedule, 215 DES_cblock *ivec); 216void DES_pcbc_encrypt(const unsigned char *input, unsigned char *output, 217 long length, DES_key_schedule *schedule, 218 DES_cblock *ivec, int enc); 219DES_LONG DES_quad_cksum(const unsigned char *input, DES_cblock output[], 220 long length, int out_count, DES_cblock *seed); 221int DES_random_key(DES_cblock *ret); 222void DES_set_odd_parity(DES_cblock *key); 223int DES_check_key_parity(const_DES_cblock *key); 224int DES_is_weak_key(const_DES_cblock *key); 225/* 226 * DES_set_key (= set_key = DES_key_sched = key_sched) calls 227 * DES_set_key_checked if global variable DES_check_key is set, 228 * DES_set_key_unchecked otherwise. 229 */ 230int DES_set_key(const_DES_cblock *key, DES_key_schedule *schedule); 231int DES_key_sched(const_DES_cblock *key, DES_key_schedule *schedule); 232int DES_set_key_checked(const_DES_cblock *key, DES_key_schedule *schedule); 233void DES_set_key_unchecked(const_DES_cblock *key, DES_key_schedule *schedule); 234void DES_string_to_key(const char *str, DES_cblock *key); 235void DES_string_to_2keys(const char *str, DES_cblock *key1, DES_cblock *key2); 236void DES_cfb64_encrypt(const unsigned char *in, unsigned char *out, 237 long length, DES_key_schedule *schedule, 238 DES_cblock *ivec, int *num, int enc); 239void DES_ofb64_encrypt(const unsigned char *in, unsigned char *out, 240 long length, DES_key_schedule *schedule, 241 DES_cblock *ivec, int *num); 242 243int DES_read_password(DES_cblock *key, const char *prompt, int verify); 244int DES_read_2passwords(DES_cblock *key1, DES_cblock *key2, 245 const char *prompt, int verify); 246 247# define DES_fixup_key_parity DES_set_odd_parity 248 249#ifdef __cplusplus 250} 251#endif 252 253#endif 254