1 /* 2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the OpenSSL license (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10 #ifndef HEADER_DES_H 11 # define HEADER_DES_H 12 13 # include <openssl/opensslconf.h> 14 15 # ifndef OPENSSL_NO_DES 16 # ifdef __cplusplus 17 extern "C" { 18 # endif 19 # include <openssl/e_os2.h> 20 21 typedef unsigned int DES_LONG; 22 23 # ifdef OPENSSL_BUILD_SHLIBCRYPTO 24 # undef OPENSSL_EXTERN 25 # define OPENSSL_EXTERN OPENSSL_EXPORT 26 # endif 27 28 typedef unsigned char DES_cblock[8]; 29 typedef /* const */ unsigned char const_DES_cblock[8]; 30 /* 31 * With "const", gcc 2.8.1 on Solaris thinks that DES_cblock * and 32 * const_DES_cblock * are incompatible pointer types. 33 */ 34 35 typedef struct DES_ks { 36 union { 37 DES_cblock cblock; 38 /* 39 * make sure things are correct size on machines with 8 byte longs 40 */ 41 DES_LONG deslong[2]; 42 } ks[16]; 43 } DES_key_schedule; 44 45 # define DES_KEY_SZ (sizeof(DES_cblock)) 46 # define DES_SCHEDULE_SZ (sizeof(DES_key_schedule)) 47 48 # define DES_ENCRYPT 1 49 # define DES_DECRYPT 0 50 51 # define DES_CBC_MODE 0 52 # define DES_PCBC_MODE 1 53 54 # define DES_ecb2_encrypt(i,o,k1,k2,e) \ 55 DES_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e)) 56 57 # define DES_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \ 58 DES_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e)) 59 60 # define DES_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \ 61 DES_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e)) 62 63 # define DES_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \ 64 DES_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n)) 65 66 OPENSSL_DECLARE_GLOBAL(int, DES_check_key); /* defaults to false */ 67 # define DES_check_key OPENSSL_GLOBAL_REF(DES_check_key) 68 69 const char *DES_options(void); 70 void DES_ecb3_encrypt(const_DES_cblock *input, DES_cblock *output, 71 DES_key_schedule *ks1, DES_key_schedule *ks2, 72 DES_key_schedule *ks3, int enc); 73 DES_LONG DES_cbc_cksum(const unsigned char *input, DES_cblock *output, 74 long length, DES_key_schedule *schedule, 75 const_DES_cblock *ivec); 76 /* DES_cbc_encrypt does not update the IV! Use DES_ncbc_encrypt instead. */ 77 void DES_cbc_encrypt(const unsigned char *input, unsigned char *output, 78 long length, DES_key_schedule *schedule, 79 DES_cblock *ivec, int enc); 80 void DES_ncbc_encrypt(const unsigned char *input, unsigned char *output, 81 long length, DES_key_schedule *schedule, 82 DES_cblock *ivec, int enc); 83 void DES_xcbc_encrypt(const unsigned char *input, unsigned char *output, 84 long length, DES_key_schedule *schedule, 85 DES_cblock *ivec, const_DES_cblock *inw, 86 const_DES_cblock *outw, int enc); 87 void DES_cfb_encrypt(const unsigned char *in, unsigned char *out, int numbits, 88 long length, DES_key_schedule *schedule, 89 DES_cblock *ivec, int enc); 90 void DES_ecb_encrypt(const_DES_cblock *input, DES_cblock *output, 91 DES_key_schedule *ks, int enc); 92 93 /* 94 * This is the DES encryption function that gets called by just about every 95 * other DES routine in the library. You should not use this function except 96 * to implement 'modes' of DES. I say this because the functions that call 97 * this routine do the conversion from 'char *' to long, and this needs to be 98 * done to make sure 'non-aligned' memory access do not occur. The 99 * characters are loaded 'little endian'. Data is a pointer to 2 unsigned 100 * long's and ks is the DES_key_schedule to use. enc, is non zero specifies 101 * encryption, zero if decryption. 102 */ 103 void DES_encrypt1(DES_LONG *data, DES_key_schedule *ks, int enc); 104 105 /* 106 * This functions is the same as DES_encrypt1() except that the DES initial 107 * permutation (IP) and final permutation (FP) have been left out. As for 108 * DES_encrypt1(), you should not use this function. It is used by the 109 * routines in the library that implement triple DES. IP() DES_encrypt2() 110 * DES_encrypt2() DES_encrypt2() FP() is the same as DES_encrypt1() 111 * DES_encrypt1() DES_encrypt1() except faster :-). 112 */ 113 void DES_encrypt2(DES_LONG *data, DES_key_schedule *ks, int enc); 114 115 void DES_encrypt3(DES_LONG *data, DES_key_schedule *ks1, 116 DES_key_schedule *ks2, DES_key_schedule *ks3); 117 void DES_decrypt3(DES_LONG *data, DES_key_schedule *ks1, 118 DES_key_schedule *ks2, DES_key_schedule *ks3); 119 void DES_ede3_cbc_encrypt(const unsigned char *input, unsigned char *output, 120 long length, 121 DES_key_schedule *ks1, DES_key_schedule *ks2, 122 DES_key_schedule *ks3, DES_cblock *ivec, int enc); 123 void DES_ede3_cfb64_encrypt(const unsigned char *in, unsigned char *out, 124 long length, DES_key_schedule *ks1, 125 DES_key_schedule *ks2, DES_key_schedule *ks3, 126 DES_cblock *ivec, int *num, int enc); 127 void DES_ede3_cfb_encrypt(const unsigned char *in, unsigned char *out, 128 int numbits, long length, DES_key_schedule *ks1, 129 DES_key_schedule *ks2, DES_key_schedule *ks3, 130 DES_cblock *ivec, int enc); 131 void DES_ede3_ofb64_encrypt(const unsigned char *in, unsigned char *out, 132 long length, DES_key_schedule *ks1, 133 DES_key_schedule *ks2, DES_key_schedule *ks3, 134 DES_cblock *ivec, int *num); 135 char *DES_fcrypt(const char *buf, const char *salt, char *ret); 136 char *DES_crypt(const char *buf, const char *salt); 137 void DES_ofb_encrypt(const unsigned char *in, unsigned char *out, int numbits, 138 long length, DES_key_schedule *schedule, 139 DES_cblock *ivec); 140 void DES_pcbc_encrypt(const unsigned char *input, unsigned char *output, 141 long length, DES_key_schedule *schedule, 142 DES_cblock *ivec, int enc); 143 DES_LONG DES_quad_cksum(const unsigned char *input, DES_cblock output[], 144 long length, int out_count, DES_cblock *seed); 145 int DES_random_key(DES_cblock *ret); 146 void DES_set_odd_parity(DES_cblock *key); 147 int DES_check_key_parity(const_DES_cblock *key); 148 int DES_is_weak_key(const_DES_cblock *key); 149 /* 150 * DES_set_key (= set_key = DES_key_sched = key_sched) calls 151 * DES_set_key_checked if global variable DES_check_key is set, 152 * DES_set_key_unchecked otherwise. 153 */ 154 int DES_set_key(const_DES_cblock *key, DES_key_schedule *schedule); 155 int DES_key_sched(const_DES_cblock *key, DES_key_schedule *schedule); 156 int DES_set_key_checked(const_DES_cblock *key, DES_key_schedule *schedule); 157 void DES_set_key_unchecked(const_DES_cblock *key, DES_key_schedule *schedule); 158 void DES_string_to_key(const char *str, DES_cblock *key); 159 void DES_string_to_2keys(const char *str, DES_cblock *key1, DES_cblock *key2); 160 void DES_cfb64_encrypt(const unsigned char *in, unsigned char *out, 161 long length, DES_key_schedule *schedule, 162 DES_cblock *ivec, int *num, int enc); 163 void DES_ofb64_encrypt(const unsigned char *in, unsigned char *out, 164 long length, DES_key_schedule *schedule, 165 DES_cblock *ivec, int *num); 166 167 # define DES_fixup_key_parity DES_set_odd_parity 168 169 # ifdef __cplusplus 170 } 171 # endif 172 # endif 173 174 #endif 175