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