aes256_encrypt.h
1 /*
2 ** ClanLib SDK
3 ** Copyright (c) 1997-2015 The ClanLib Team
4 **
5 ** This software is provided 'as-is', without any express or implied
6 ** warranty. In no event will the authors be held liable for any damages
7 ** arising from the use of this software.
8 **
9 ** Permission is granted to anyone to use this software for any purpose,
10 ** including commercial applications, and to alter it and redistribute it
11 ** freely, subject to the following restrictions:
12 **
13 ** 1. The origin of this software must not be misrepresented; you must not
14 ** claim that you wrote the original software. If you use this software
15 ** in a product, an acknowledgment in the product documentation would be
16 ** appreciated but is not required.
17 ** 2. Altered source versions must be plainly marked as such, and must not be
18 ** misrepresented as being the original software.
19 ** 3. This notice may not be removed or altered from any source distribution.
20 **
21 ** Note: Some of the libraries ClanLib may link to may have additional
22 ** requirements or restrictions.
23 **
24 ** File Author(s):
25 **
26 ** Magnus Norddahl
27 ** Mark Page
28 */
29 
30 
31 #pragma once
32 
33 #include <memory>
34 
35 namespace clan
36 {
39 
40 class DataBuffer;
41 class AES256_Encrypt_Impl;
42 
45 {
48 
49 public:
52 
56 
57 public:
64 
68 
69 public:
70  static const int iv_size = 16;
71  static const int key_size = 32;
72  static const int block_size = 16;
73 
75  void reset();
76 
81  void set_iv(const unsigned char iv[iv_size]);
82 
86  void set_key(const unsigned char key[key_size]);
87 
96  void set_padding(bool value = true, bool use_pkcs7 = true, unsigned int num_additional_padded_blocks = 0);
97 
99  void add(const void *data, int size);
100 
104  void add(const DataBuffer &data);
105 
107  void calculate();
108 
112 
113 private:
114  std::shared_ptr<AES256_Encrypt_Impl> impl;
116 };
117 
118 }
119 
void add(const void *data, int size)
Adds data to be encrypted.
void set_padding(bool value=true, bool use_pkcs7=true, unsigned int num_additional_padded_blocks=0)
Enable AES Padding.
void set_iv(const unsigned char iv[iv_size])
Sets the initialisation vector.
static const int block_size
Definition: aes256_encrypt.h:72
General purpose data buffer.
Definition: databuffer.h:43
void add(const DataBuffer &data)
Add data to be encrypted.
AES256_Encrypt()
Constructs a AES-256 generator (running in Cipher Block Chaining mode)
void set_key(const unsigned char key[key_size])
Sets the cipher key.
AES-256 encryption class (running in Cipher Block Chaining mode)
Definition: aes256_encrypt.h:45
static const int key_size
Definition: aes256_encrypt.h:71
DataBuffer get_data() const
Get encrypted data.
Definition: clanapp.h:36
static const int iv_size
Definition: aes256_encrypt.h:70
void calculate()
Finalize encryption.
void reset()
Resets the encryption.