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, 63 DES_LONG (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/* With "const", gcc 2.8.1 on Solaris thinks that DES_cblock * 81 * and const_DES_cblock * are incompatible pointer types. */ 82 83typedef struct DES_ks 84 { 85 union 86 { 87 DES_cblock cblock; 88 /* make sure things are correct size on machines with 89 * 8 byte longs */ 90 DES_LONG deslong[2]; 91 } ks[16]; 92 } DES_key_schedule; 93 94#ifndef OPENSSL_DISABLE_OLD_DES_SUPPORT 95# ifndef OPENSSL_ENABLE_OLD_DES_SUPPORT 96# define OPENSSL_ENABLE_OLD_DES_SUPPORT 97# endif 98#endif 99 100#ifdef OPENSSL_ENABLE_OLD_DES_SUPPORT 101# include <openssl/des_old.h> 102#endif 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 125OPENSSL_DECLARE_GLOBAL(int,DES_check_key); /* defaults to false */ 126#define DES_check_key OPENSSL_GLOBAL_REF(DES_check_key) 127OPENSSL_DECLARE_GLOBAL(int,DES_rw_mode); /* defaults to DES_PCBC_MODE */ 128#define DES_rw_mode OPENSSL_GLOBAL_REF(DES_rw_mode) 129 130const char *DES_options(void); 131void DES_ecb3_encrypt(const_DES_cblock *input, DES_cblock *output, 132 DES_key_schedule *ks1,DES_key_schedule *ks2, 133 DES_key_schedule *ks3, int enc); 134DES_LONG DES_cbc_cksum(const unsigned char *input,DES_cblock *output, 135 long length,DES_key_schedule *schedule, 136 const_DES_cblock *ivec); 137/* DES_cbc_encrypt does not update the IV! Use DES_ncbc_encrypt instead. */ 138void DES_cbc_encrypt(const unsigned char *input,unsigned char *output, 139 long length,DES_key_schedule *schedule,DES_cblock *ivec, 140 int enc); 141void DES_ncbc_encrypt(const unsigned char *input,unsigned char *output, 142 long length,DES_key_schedule *schedule,DES_cblock *ivec, 143 int enc); 144void DES_xcbc_encrypt(const unsigned char *input,unsigned char *output, 145 long length,DES_key_schedule *schedule,DES_cblock *ivec, 146 const_DES_cblock *inw,const_DES_cblock *outw,int enc); 147void DES_cfb_encrypt(const unsigned char *in,unsigned char *out,int numbits, 148 long length,DES_key_schedule *schedule,DES_cblock *ivec, 149 int enc); 150void DES_ecb_encrypt(const_DES_cblock *input,DES_cblock *output, 151 DES_key_schedule *ks,int enc); 152 153/* This is the DES encryption function that gets called by just about 154 every other DES routine in the library. You should not use this 155 function except to implement 'modes' of DES. I say this because the 156 functions that call this routine do the conversion from 'char *' to 157 long, and this needs to be done to make sure 'non-aligned' memory 158 access do not occur. The characters are loaded 'little endian'. 159 Data is a pointer to 2 unsigned long's and ks is the 160 DES_key_schedule to use. enc, is non zero specifies encryption, 161 zero if decryption. */ 162void DES_encrypt1(DES_LONG *data,DES_key_schedule *ks, int enc); 163 164/* This functions is the same as DES_encrypt1() except that the DES 165 initial permutation (IP) and final permutation (FP) have been left 166 out. As for DES_encrypt1(), you should not use this function. 167 It is used by the routines in the library that implement triple DES. 168 IP() DES_encrypt2() DES_encrypt2() DES_encrypt2() FP() is the same 169 as DES_encrypt1() DES_encrypt1() DES_encrypt1() except faster :-). */ 170void DES_encrypt2(DES_LONG *data,DES_key_schedule *ks, int enc); 171 172void DES_encrypt3(DES_LONG *data, DES_key_schedule *ks1, 173 DES_key_schedule *ks2, DES_key_schedule *ks3); 174void DES_decrypt3(DES_LONG *data, DES_key_schedule *ks1, 175 DES_key_schedule *ks2, DES_key_schedule *ks3); 176void DES_ede3_cbc_encrypt(const unsigned char *input,unsigned char *output, 177 long length, 178 DES_key_schedule *ks1,DES_key_schedule *ks2, 179 DES_key_schedule *ks3,DES_cblock *ivec,int enc); 180void DES_ede3_cbcm_encrypt(const unsigned char *in,unsigned char *out, 181 long length, 182 DES_key_schedule *ks1,DES_key_schedule *ks2, 183 DES_key_schedule *ks3, 184 DES_cblock *ivec1,DES_cblock *ivec2, 185 int enc); 186void DES_ede3_cfb64_encrypt(const unsigned char *in,unsigned char *out, 187 long length,DES_key_schedule *ks1, 188 DES_key_schedule *ks2,DES_key_schedule *ks3, 189 DES_cblock *ivec,int *num,int enc); 190void DES_ede3_cfb_encrypt(const unsigned char *in,unsigned char *out, 191 int numbits,long length,DES_key_schedule *ks1, 192 DES_key_schedule *ks2,DES_key_schedule *ks3, 193 DES_cblock *ivec,int enc); 194void DES_ede3_ofb64_encrypt(const unsigned char *in,unsigned char *out, 195 long length,DES_key_schedule *ks1, 196 DES_key_schedule *ks2,DES_key_schedule *ks3, 197 DES_cblock *ivec,int *num); 198#if 0 199void DES_xwhite_in2out(const_DES_cblock *DES_key,const_DES_cblock *in_white, 200 DES_cblock *out_white); 201#endif 202 203int DES_enc_read(int fd,void *buf,int len,DES_key_schedule *sched, 204 DES_cblock *iv); 205int DES_enc_write(int fd,const void *buf,int len,DES_key_schedule *sched, 206 DES_cblock *iv); 207char *DES_fcrypt(const char *buf,const char *salt, char *ret); 208char *DES_crypt(const char *buf,const char *salt); 209void DES_ofb_encrypt(const unsigned char *in,unsigned char *out,int numbits, 210 long length,DES_key_schedule *schedule,DES_cblock *ivec); 211void DES_pcbc_encrypt(const unsigned char *input,unsigned char *output, 212 long length,DES_key_schedule *schedule,DES_cblock *ivec, 213 int enc); 214DES_LONG DES_quad_cksum(const unsigned char *input,DES_cblock output[], 215 long length,int out_count,DES_cblock *seed); 216int DES_random_key(DES_cblock *ret); 217void DES_set_odd_parity(DES_cblock *key); 218int DES_check_key_parity(const_DES_cblock *key); 219int DES_is_weak_key(const_DES_cblock *key); 220/* DES_set_key (= set_key = DES_key_sched = key_sched) calls 221 * DES_set_key_checked if global variable DES_check_key is set, 222 * DES_set_key_unchecked otherwise. */ 223int DES_set_key(const_DES_cblock *key,DES_key_schedule *schedule); 224int DES_key_sched(const_DES_cblock *key,DES_key_schedule *schedule); 225int DES_set_key_checked(const_DES_cblock *key,DES_key_schedule *schedule); 226void DES_set_key_unchecked(const_DES_cblock *key,DES_key_schedule *schedule); 227#ifdef OPENSSL_FIPS 228void private_DES_set_key_unchecked(const_DES_cblock *key,DES_key_schedule *schedule); 229#endif 230void DES_string_to_key(const char *str,DES_cblock *key); 231void DES_string_to_2keys(const char *str,DES_cblock *key1,DES_cblock *key2); 232void DES_cfb64_encrypt(const unsigned char *in,unsigned char *out,long length, 233 DES_key_schedule *schedule,DES_cblock *ivec,int *num, 234 int enc); 235void DES_ofb64_encrypt(const unsigned char *in,unsigned char *out,long length, 236 DES_key_schedule *schedule,DES_cblock *ivec,int *num); 237 238int DES_read_password(DES_cblock *key, const char *prompt, int verify); 239int DES_read_2passwords(DES_cblock *key1, DES_cblock *key2, const char *prompt, 240 int verify); 241 242#define DES_fixup_key_parity DES_set_odd_parity 243 244#ifdef __cplusplus 245} 246#endif 247 248#endif 249