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
44 class AES256_Encrypt
45 {
48
49 public:
51 AES256_Encrypt();
52
56
57 public:
63 DataBuffer get_data() const;
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
clan::AES256_Encrypt::iv_size
static const int iv_size
Definition: aes256_encrypt.h:70
clan
Definition: clanapp.h:35
clan::AES256_Encrypt::calculate
void calculate()
Finalize encryption.
clan::AES256_Encrypt::block_size
static const int block_size
Definition: aes256_encrypt.h:72
clan::AES256_Encrypt::key_size
static const int key_size
Definition: aes256_encrypt.h:71
clan::AES256_Encrypt::AES256_Encrypt
AES256_Encrypt()
Constructs a AES-256 generator (running in Cipher Block Chaining mode)
clan::AES256_Encrypt::set_padding
void set_padding(bool value=true, bool use_pkcs7=true, unsigned int num_additional_padded_blocks=0)
Enable AES Padding.
clan::AES256_Encrypt::reset
void reset()
Resets the encryption.
clan::AES256_Encrypt::get_data
DataBuffer get_data() const
Get encrypted data.
clan::AES256_Encrypt::set_iv
void set_iv(const unsigned char iv[iv_size])
Sets the initialisation vector.
clan::DataBuffer
General purpose data buffer.
Definition: databuffer.h:42
clan::AES256_Encrypt::add
void add(const void *data, int size)
Adds data to be encrypted.
clan::AES256_Encrypt
AES-256 encryption class (running in Cipher Block Chaining mode)
Definition: aes256_encrypt.h:44
clan::AES256_Encrypt::set_key
void set_key(const unsigned char key[key_size])
Sets the cipher key.