1 /* $OpenBSD: des.h,v 1.18 2014/06/12 15:49:28 deraadt Exp $ */ 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/opensslconf.h> 63 64 #ifdef OPENSSL_NO_DES 65 #error DES is disabled. 66 #endif 67 68 69 #ifdef __cplusplus 70 extern "C" { 71 #endif 72 73 typedef unsigned char DES_cblock[8]; 74 typedef /* const */ unsigned char const_DES_cblock[8]; 75 /* With "const", gcc 2.8.1 on Solaris thinks that DES_cblock * 76 * and const_DES_cblock * are incompatible pointer types. */ 77 78 typedef struct DES_ks 79 { 80 union 81 { 82 DES_cblock cblock; 83 /* make sure things are correct size on machines with 84 * 8 byte longs */ 85 DES_LONG deslong[2]; 86 } ks[16]; 87 } DES_key_schedule; 88 89 #define DES_KEY_SZ (sizeof(DES_cblock)) 90 #define DES_SCHEDULE_SZ (sizeof(DES_key_schedule)) 91 92 #define DES_ENCRYPT 1 93 #define DES_DECRYPT 0 94 95 #define DES_CBC_MODE 0 96 #define DES_PCBC_MODE 1 97 98 #define DES_ecb2_encrypt(i,o,k1,k2,e) \ 99 DES_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e)) 100 101 #define DES_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \ 102 DES_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e)) 103 104 #define DES_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \ 105 DES_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e)) 106 107 #define DES_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \ 108 DES_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n)) 109 110 extern int DES_check_key; /* defaults to false */ 111 extern int DES_rw_mode; /* defaults to DES_PCBC_MODE */ 112 113 const char *DES_options(void); 114 void DES_ecb3_encrypt(const_DES_cblock *input, DES_cblock *output, 115 DES_key_schedule *ks1,DES_key_schedule *ks2, 116 DES_key_schedule *ks3, int enc); 117 DES_LONG DES_cbc_cksum(const unsigned char *input,DES_cblock *output, 118 long length,DES_key_schedule *schedule, 119 const_DES_cblock *ivec); 120 /* DES_cbc_encrypt does not update the IV! Use DES_ncbc_encrypt instead. */ 121 void DES_cbc_encrypt(const unsigned char *input,unsigned char *output, 122 long length,DES_key_schedule *schedule,DES_cblock *ivec, 123 int enc); 124 void DES_ncbc_encrypt(const unsigned char *input,unsigned char *output, 125 long length,DES_key_schedule *schedule,DES_cblock *ivec, 126 int enc); 127 void DES_xcbc_encrypt(const unsigned char *input,unsigned char *output, 128 long length,DES_key_schedule *schedule,DES_cblock *ivec, 129 const_DES_cblock *inw,const_DES_cblock *outw,int enc); 130 void DES_cfb_encrypt(const unsigned char *in,unsigned char *out,int numbits, 131 long length,DES_key_schedule *schedule,DES_cblock *ivec, 132 int enc); 133 void DES_ecb_encrypt(const_DES_cblock *input,DES_cblock *output, 134 DES_key_schedule *ks,int enc); 135 136 /* This is the DES encryption function that gets called by just about 137 every other DES routine in the library. You should not use this 138 function except to implement 'modes' of DES. I say this because the 139 functions that call this routine do the conversion from 'char *' to 140 long, and this needs to be done to make sure 'non-aligned' memory 141 access do not occur. The characters are loaded 'little endian'. 142 Data is a pointer to 2 unsigned long's and ks is the 143 DES_key_schedule to use. enc, is non zero specifies encryption, 144 zero if decryption. */ 145 void DES_encrypt1(DES_LONG *data,DES_key_schedule *ks, int enc); 146 147 /* This functions is the same as DES_encrypt1() except that the DES 148 initial permutation (IP) and final permutation (FP) have been left 149 out. As for DES_encrypt1(), you should not use this function. 150 It is used by the routines in the library that implement triple DES. 151 IP() DES_encrypt2() DES_encrypt2() DES_encrypt2() FP() is the same 152 as DES_encrypt1() DES_encrypt1() DES_encrypt1() except faster :-). */ 153 void DES_encrypt2(DES_LONG *data,DES_key_schedule *ks, int enc); 154 155 void DES_encrypt3(DES_LONG *data, DES_key_schedule *ks1, 156 DES_key_schedule *ks2, DES_key_schedule *ks3); 157 void DES_decrypt3(DES_LONG *data, DES_key_schedule *ks1, 158 DES_key_schedule *ks2, DES_key_schedule *ks3); 159 void DES_ede3_cbc_encrypt(const unsigned char *input,unsigned char *output, 160 long length, 161 DES_key_schedule *ks1,DES_key_schedule *ks2, 162 DES_key_schedule *ks3,DES_cblock *ivec,int enc); 163 void DES_ede3_cbcm_encrypt(const unsigned char *in,unsigned char *out, 164 long length, 165 DES_key_schedule *ks1,DES_key_schedule *ks2, 166 DES_key_schedule *ks3, 167 DES_cblock *ivec1,DES_cblock *ivec2, 168 int enc); 169 void DES_ede3_cfb64_encrypt(const unsigned char *in,unsigned char *out, 170 long length,DES_key_schedule *ks1, 171 DES_key_schedule *ks2,DES_key_schedule *ks3, 172 DES_cblock *ivec,int *num,int enc); 173 void DES_ede3_cfb_encrypt(const unsigned char *in,unsigned char *out, 174 int numbits,long length,DES_key_schedule *ks1, 175 DES_key_schedule *ks2,DES_key_schedule *ks3, 176 DES_cblock *ivec,int enc); 177 void DES_ede3_ofb64_encrypt(const unsigned char *in,unsigned char *out, 178 long length,DES_key_schedule *ks1, 179 DES_key_schedule *ks2,DES_key_schedule *ks3, 180 DES_cblock *ivec,int *num); 181 int DES_enc_read(int fd,void *buf,int len,DES_key_schedule *sched, 182 DES_cblock *iv); 183 int DES_enc_write(int fd,const void *buf,int len,DES_key_schedule *sched, 184 DES_cblock *iv); 185 char *DES_fcrypt(const char *buf,const char *salt, char *ret); 186 char *DES_crypt(const char *buf,const char *salt); 187 void DES_ofb_encrypt(const unsigned char *in,unsigned char *out,int numbits, 188 long length,DES_key_schedule *schedule,DES_cblock *ivec); 189 void DES_pcbc_encrypt(const unsigned char *input,unsigned char *output, 190 long length,DES_key_schedule *schedule,DES_cblock *ivec, 191 int enc); 192 DES_LONG DES_quad_cksum(const unsigned char *input,DES_cblock output[], 193 long length,int out_count,DES_cblock *seed); 194 int DES_random_key(DES_cblock *ret); 195 void DES_set_odd_parity(DES_cblock *key); 196 int DES_check_key_parity(const_DES_cblock *key); 197 int DES_is_weak_key(const_DES_cblock *key); 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 *key,DES_key_schedule *schedule); 202 int DES_key_sched(const_DES_cblock *key,DES_key_schedule *schedule); 203 int DES_set_key_checked(const_DES_cblock *key,DES_key_schedule *schedule); 204 void DES_set_key_unchecked(const_DES_cblock *key,DES_key_schedule *schedule); 205 void DES_string_to_key(const char *str,DES_cblock *key); 206 void DES_string_to_2keys(const char *str,DES_cblock *key1,DES_cblock *key2); 207 void DES_cfb64_encrypt(const unsigned char *in,unsigned char *out,long length, 208 DES_key_schedule *schedule,DES_cblock *ivec,int *num, 209 int enc); 210 void DES_ofb64_encrypt(const unsigned char *in,unsigned char *out,long length, 211 DES_key_schedule *schedule,DES_cblock *ivec,int *num); 212 213 #define DES_fixup_key_parity DES_set_odd_parity 214 215 #ifdef __cplusplus 216 } 217 #endif 218 219 #endif 220