1 /* $OpenBSD: des.h,v 1.23 2025/01/25 17:59:44 tb 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 __cplusplus 65 extern "C" { 66 #endif 67 68 typedef unsigned char DES_cblock[8]; 69 typedef /* const */ unsigned char const_DES_cblock[8]; 70 /* With "const", gcc 2.8.1 on Solaris thinks that DES_cblock * 71 * and const_DES_cblock * are incompatible pointer types. */ 72 73 typedef struct DES_ks { 74 union { 75 DES_cblock cblock; 76 /* make sure things are correct size on machines with 77 * 8 byte longs */ 78 DES_LONG deslong[2]; 79 } ks[16]; 80 } DES_key_schedule; 81 82 #define DES_KEY_SZ (sizeof(DES_cblock)) 83 #define DES_SCHEDULE_SZ (sizeof(DES_key_schedule)) 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 */ 104 105 void DES_ecb3_encrypt(const_DES_cblock *input, DES_cblock *output, 106 DES_key_schedule *ks1, DES_key_schedule *ks2, 107 DES_key_schedule *ks3, int enc); 108 DES_LONG DES_cbc_cksum(const unsigned char *input, DES_cblock *output, 109 long length, DES_key_schedule *schedule, 110 const_DES_cblock *ivec); 111 /* DES_cbc_encrypt does not update the IV! Use DES_ncbc_encrypt instead. */ 112 void DES_cbc_encrypt(const unsigned char *input, unsigned char *output, 113 long length, DES_key_schedule *schedule, DES_cblock *ivec, 114 int enc); 115 void DES_ncbc_encrypt(const unsigned char *input, unsigned char *output, 116 long length, DES_key_schedule *schedule, DES_cblock *ivec, 117 int enc); 118 void DES_xcbc_encrypt(const unsigned char *input, unsigned char *output, 119 long length, DES_key_schedule *schedule, DES_cblock *ivec, 120 const_DES_cblock *inw, const_DES_cblock *outw, int enc); 121 void DES_cfb_encrypt(const unsigned char *in, unsigned char *out, int numbits, 122 long length, DES_key_schedule *schedule, DES_cblock *ivec, 123 int enc); 124 void DES_ecb_encrypt(const_DES_cblock *input, DES_cblock *output, 125 DES_key_schedule *ks, int enc); 126 127 /* This is the DES encryption function that gets called by just about 128 every other DES routine in the library. You should not use this 129 function except to implement 'modes' of DES. I say this because the 130 functions that call this routine do the conversion from 'char *' to 131 long, and this needs to be done to make sure 'non-aligned' memory 132 access do not occur. The characters are loaded 'little endian'. 133 Data is a pointer to 2 unsigned long's and ks is the 134 DES_key_schedule to use. enc, is non zero specifies encryption, 135 zero if decryption. */ 136 void DES_encrypt1(DES_LONG *data, DES_key_schedule *ks, int enc); 137 138 /* This functions is the same as DES_encrypt1() except that the DES 139 initial permutation (IP) and final permutation (FP) have been left 140 out. As for DES_encrypt1(), you should not use this function. 141 It is used by the routines in the library that implement triple DES. 142 IP() DES_encrypt2() DES_encrypt2() DES_encrypt2() FP() is the same 143 as DES_encrypt1() DES_encrypt1() DES_encrypt1() except faster :-). */ 144 void DES_encrypt2(DES_LONG *data, DES_key_schedule *ks, int enc); 145 146 void DES_encrypt3(DES_LONG *data, DES_key_schedule *ks1, 147 DES_key_schedule *ks2, DES_key_schedule *ks3); 148 void DES_decrypt3(DES_LONG *data, DES_key_schedule *ks1, 149 DES_key_schedule *ks2, DES_key_schedule *ks3); 150 void DES_ede3_cbc_encrypt(const unsigned char *input, unsigned char *output, 151 long length, 152 DES_key_schedule *ks1, DES_key_schedule *ks2, 153 DES_key_schedule *ks3, DES_cblock *ivec, int enc); 154 void DES_ede3_cbcm_encrypt(const unsigned char *in, unsigned char *out, 155 long length, 156 DES_key_schedule *ks1, DES_key_schedule *ks2, 157 DES_key_schedule *ks3, 158 DES_cblock *ivec1, DES_cblock *ivec2, 159 int enc); 160 void DES_ede3_cfb64_encrypt(const unsigned char *in, unsigned char *out, 161 long length, DES_key_schedule *ks1, 162 DES_key_schedule *ks2, DES_key_schedule *ks3, 163 DES_cblock *ivec, int *num, int enc); 164 void DES_ede3_cfb_encrypt(const unsigned char *in, unsigned char *out, 165 int numbits, long length, DES_key_schedule *ks1, 166 DES_key_schedule *ks2, DES_key_schedule *ks3, 167 DES_cblock *ivec, int enc); 168 void DES_ede3_ofb64_encrypt(const unsigned char *in, unsigned char *out, 169 long length, DES_key_schedule *ks1, 170 DES_key_schedule *ks2, DES_key_schedule *ks3, 171 DES_cblock *ivec, int *num); 172 char *DES_fcrypt(const char *buf, const char *salt, char *ret); 173 char *DES_crypt(const char *buf, const char *salt); 174 void DES_ofb_encrypt(const unsigned char *in, unsigned char *out, int numbits, 175 long length, DES_key_schedule *schedule, DES_cblock *ivec); 176 void DES_pcbc_encrypt(const unsigned char *input, unsigned char *output, 177 long length, DES_key_schedule *schedule, DES_cblock *ivec, 178 int enc); 179 DES_LONG DES_quad_cksum(const unsigned char *input, DES_cblock output[], 180 long length, int out_count, DES_cblock *seed); 181 int DES_random_key(DES_cblock *ret); 182 void DES_set_odd_parity(DES_cblock *key); 183 int DES_check_key_parity(const_DES_cblock *key); 184 int DES_is_weak_key(const_DES_cblock *key); 185 /* DES_set_key (= set_key = DES_key_sched = key_sched) calls 186 * DES_set_key_checked if global variable DES_check_key is set, 187 * DES_set_key_unchecked otherwise. */ 188 int DES_set_key(const_DES_cblock *key, DES_key_schedule *schedule); 189 int DES_key_sched(const_DES_cblock *key, DES_key_schedule *schedule); 190 int DES_set_key_checked(const_DES_cblock *key, DES_key_schedule *schedule); 191 void DES_set_key_unchecked(const_DES_cblock *key, DES_key_schedule *schedule); 192 void DES_string_to_key(const char *str, DES_cblock *key); 193 void DES_string_to_2keys(const char *str, DES_cblock *key1, DES_cblock *key2); 194 void DES_cfb64_encrypt(const unsigned char *in, unsigned char *out, long length, 195 DES_key_schedule *schedule, DES_cblock *ivec, int *num, 196 int enc); 197 void DES_ofb64_encrypt(const unsigned char *in, unsigned char *out, long length, 198 DES_key_schedule *schedule, DES_cblock *ivec, int *num); 199 200 #define DES_fixup_key_parity DES_set_odd_parity 201 202 #ifdef __cplusplus 203 } 204 #endif 205 206 #endif 207