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aescpp.h
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1/*
2---------------------------------------------------------------------------
3Copyright (c) 1998-2013, Brian Gladman, Worcester, UK. All rights reserved.
4
5The redistribution and use of this software (with or without changes)
6is allowed without the payment of fees or royalties provided that:
7
8 source code distributions include the above copyright notice, this
9 list of conditions and the following disclaimer;
10
11 binary distributions include the above copyright notice, this list
12 of conditions and the following disclaimer in their documentation.
13
14This software is provided 'as is' with no explicit or implied warranties
15in respect of its operation, including, but not limited to, correctness
16and fitness for purpose.
17---------------------------------------------------------------------------
18Issue Date: 20/12/2007
19
20 This file contains the definitions required to use AES (Rijndael) in C++.
21*/
22
23#ifndef _AESCPP_H
24#define _AESCPP_H
25
26#include "aes.h"
27
28#if defined( AES_ENCRYPT )
29
31{
32public:
34 AESencrypt(void) { aes_init(); };
35#if defined(AES_128)
36 AESencrypt(const unsigned char key[])
38 AES_RETURN key128(const unsigned char key[])
39 { return aes_encrypt_key128(key, cx); }
40#endif
41#if defined(AES_192)
42 AES_RETURN key192(const unsigned char key[])
43 { return aes_encrypt_key192(key, cx); }
44#endif
45#if defined(AES_256)
46 AES_RETURN key256(const unsigned char key[])
47 { return aes_encrypt_key256(key, cx); }
48#endif
49#if defined(AES_VAR)
50 AES_RETURN key(const unsigned char key[], int key_len)
51 { return aes_encrypt_key(key, key_len, cx); }
52#endif
53 AES_RETURN encrypt(const unsigned char in[], unsigned char out[]) const
54 { return aes_encrypt(in, out, cx); }
55#ifndef AES_MODES
56 AES_RETURN ecb_encrypt(const unsigned char in[], unsigned char out[], int nb) const
57 { while(nb--)
58 { aes_encrypt(in, out, cx), in += AES_BLOCK_SIZE, out += AES_BLOCK_SIZE; }
59 }
60#endif
61#ifdef AES_MODES
63
64 AES_RETURN ecb_encrypt(const unsigned char in[], unsigned char out[], int nb) const
65 { return aes_ecb_encrypt(in, out, nb, cx); }
66
67 AES_RETURN cbc_encrypt(const unsigned char in[], unsigned char out[], int nb,
68 unsigned char iv[]) const
69 { return aes_cbc_encrypt(in, out, nb, iv, cx); }
70
71 AES_RETURN cfb_encrypt(const unsigned char in[], unsigned char out[], int nb,
72 unsigned char iv[])
73 { return aes_cfb_encrypt(in, out, nb, iv, cx); }
74
75 AES_RETURN cfb_decrypt(const unsigned char in[], unsigned char out[], int nb,
76 unsigned char iv[])
77 { return aes_cfb_decrypt(in, out, nb, iv, cx); }
78
79 AES_RETURN ofb_crypt(const unsigned char in[], unsigned char out[], int nb,
80 unsigned char iv[])
81 { return aes_ofb_crypt(in, out, nb, iv, cx); }
82
83 typedef void ctr_fn(unsigned char ctr[]);
84
85 AES_RETURN ctr_crypt(const unsigned char in[], unsigned char out[], int nb,
86 unsigned char iv[], ctr_fn cf)
87 { return aes_ctr_crypt(in, out, nb, iv, cf, cx); }
88
89#endif
90
91};
92
93#endif
94
95#if defined( AES_DECRYPT )
96
98{
99public:
101 AESdecrypt(void) { aes_init(); };
102#if defined(AES_128)
103 AESdecrypt(const unsigned char key[])
105 AES_RETURN key128(const unsigned char key[])
106 { return aes_decrypt_key128(key, cx); }
107#endif
108#if defined(AES_192)
109 AES_RETURN key192(const unsigned char key[])
110 { return aes_decrypt_key192(key, cx); }
111#endif
112#if defined(AES_256)
113 AES_RETURN key256(const unsigned char key[])
114 { return aes_decrypt_key256(key, cx); }
115#endif
116#if defined(AES_VAR)
117 AES_RETURN key(const unsigned char key[], int key_len)
118 { return aes_decrypt_key(key, key_len, cx); }
119#endif
120 AES_RETURN decrypt(const unsigned char in[], unsigned char out[]) const
121 { return aes_decrypt(in, out, cx); }
122#ifndef AES_MODES
123 AES_RETURN ecb_decrypt(const unsigned char in[], unsigned char out[], int nb) const
124 { while(nb--)
125 { aes_decrypt(in, out, cx), in += AES_BLOCK_SIZE, out += AES_BLOCK_SIZE; }
126 }
127#endif
128#ifdef AES_MODES
129
130 AES_RETURN ecb_decrypt(const unsigned char in[], unsigned char out[], int nb) const
131 { return aes_ecb_decrypt(in, out, nb, cx); }
132
133 AES_RETURN cbc_decrypt(const unsigned char in[], unsigned char out[], int nb,
134 unsigned char iv[]) const
135 { return aes_cbc_decrypt(in, out, nb, iv, cx); }
136#endif
137};
138
139#endif
140
141#endif
AES_RETURN aes_decrypt_key128(const unsigned char *key, aes_decrypt_ctx cx[1])
AES_RETURN aes_ofb_crypt(const unsigned char *ibuf, unsigned char *obuf, int len, unsigned char *iv, aes_encrypt_ctx cx[1])
Definition: aes_modes.c:723
AES_RETURN aes_cbc_encrypt(const unsigned char *ibuf, unsigned char *obuf, int len, unsigned char *iv, const aes_encrypt_ctx cx[1])
Definition: aes_modes.c:261
AES_RETURN aes_decrypt_key(const unsigned char *key, int key_len, aes_decrypt_ctx cx[1])
Definition: aeskey.c:539
AES_RETURN aes_cfb_encrypt(const unsigned char *ibuf, unsigned char *obuf, int len, unsigned char *iv, aes_encrypt_ctx cx[1])
Definition: aes_modes.c:457
AES_RETURN aes_decrypt_key192(const unsigned char *key, aes_decrypt_ctx cx[1])
AES_RETURN aes_encrypt_key192(const unsigned char *key, aes_encrypt_ctx cx[1])
AES_RETURN aes_cbc_decrypt(const unsigned char *ibuf, unsigned char *obuf, int len, unsigned char *iv, const aes_decrypt_ctx cx[1])
Definition: aes_modes.c:358
AES_RETURN aes_cfb_decrypt(const unsigned char *ibuf, unsigned char *obuf, int len, unsigned char *iv, aes_encrypt_ctx cx[1])
Definition: aes_modes.c:582
AES_RETURN aes_encrypt(const unsigned char *in, unsigned char *out, const aes_encrypt_ctx cx[1])
AES_RETURN aes_ecb_decrypt(const unsigned char *ibuf, unsigned char *obuf, int len, const aes_decrypt_ctx cx[1])
Definition: aes_modes.c:199
AES_RETURN aes_ecb_encrypt(const unsigned char *ibuf, unsigned char *obuf, int len, const aes_encrypt_ctx cx[1])
Definition: aes_modes.c:137
AES_RETURN aes_encrypt_key256(const unsigned char *key, aes_encrypt_ctx cx[1])
AES_RETURN aes_ctr_crypt(const unsigned char *ibuf, unsigned char *obuf, int len, unsigned char *cbuf, cbuf_inc ctr_inc, aes_encrypt_ctx cx[1])
Definition: aes_modes.c:850
AES_RETURN aes_encrypt_key(const unsigned char *key, int key_len, aes_encrypt_ctx cx[1])
Definition: aeskey.c:528
#define AES_RETURN
Definition: aes.h:63
AES_RETURN aes_init(void)
Definition: aestab.c:187
AES_RETURN aes_decrypt_key256(const unsigned char *key, aes_decrypt_ctx cx[1])
AES_RETURN aes_encrypt_key128(const unsigned char *key, aes_encrypt_ctx cx[1])
AES_RETURN aes_mode_reset(aes_encrypt_ctx cx[1])
Definition: aes_modes.c:131
AES_RETURN aes_decrypt(const unsigned char *in, unsigned char *out, const aes_decrypt_ctx cx[1])
#define AES_BLOCK_SIZE
Definition: aes.h:48
Definition: aescpp.h:98
AES_RETURN decrypt(const unsigned char in[], unsigned char out[]) const
Definition: aescpp.h:120
AES_RETURN key(const unsigned char key[], int key_len)
Definition: aescpp.h:117
AES_RETURN cbc_decrypt(const unsigned char in[], unsigned char out[], int nb, unsigned char iv[]) const
Definition: aescpp.h:133
aes_decrypt_ctx cx[1]
Definition: aescpp.h:100
AES_RETURN key192(const unsigned char key[])
Definition: aescpp.h:109
AES_RETURN key128(const unsigned char key[])
Definition: aescpp.h:105
AESdecrypt(const unsigned char key[])
Definition: aescpp.h:103
AES_RETURN key256(const unsigned char key[])
Definition: aescpp.h:113
AESdecrypt(void)
Definition: aescpp.h:101
AES_RETURN ecb_decrypt(const unsigned char in[], unsigned char out[], int nb) const
Definition: aescpp.h:130
Definition: aescpp.h:31
AES_RETURN key192(const unsigned char key[])
Definition: aescpp.h:42
AESencrypt(const unsigned char key[])
Definition: aescpp.h:36
AES_RETURN cbc_encrypt(const unsigned char in[], unsigned char out[], int nb, unsigned char iv[]) const
Definition: aescpp.h:67
AES_RETURN ctr_crypt(const unsigned char in[], unsigned char out[], int nb, unsigned char iv[], ctr_fn cf)
Definition: aescpp.h:85
AES_RETURN key(const unsigned char key[], int key_len)
Definition: aescpp.h:50
AES_RETURN key256(const unsigned char key[])
Definition: aescpp.h:46
AES_RETURN key128(const unsigned char key[])
Definition: aescpp.h:38
aes_encrypt_ctx cx[1]
Definition: aescpp.h:33
AES_RETURN mode_reset(void)
Definition: aescpp.h:62
AESencrypt(void)
Definition: aescpp.h:34
void ctr_fn(unsigned char ctr[])
Definition: aescpp.h:83
AES_RETURN ecb_encrypt(const unsigned char in[], unsigned char out[], int nb) const
Definition: aescpp.h:64
AES_RETURN cfb_encrypt(const unsigned char in[], unsigned char out[], int nb, unsigned char iv[])
Definition: aescpp.h:71
AES_RETURN ofb_crypt(const unsigned char in[], unsigned char out[], int nb, unsigned char iv[])
Definition: aescpp.h:79
AES_RETURN encrypt(const unsigned char in[], unsigned char out[]) const
Definition: aescpp.h:53
AES_RETURN cfb_decrypt(const unsigned char in[], unsigned char out[], int nb, unsigned char iv[])
Definition: aescpp.h:75
Definition: aes.h:89
Definition: aes.h:81