aes256_decrypt.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_Decrypt_Impl;
42
44 class AES256_Decrypt
45 {
48
49 public:
51 AES256_Decrypt();
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
74 void reset();
75
80 void set_iv(const unsigned char iv[iv_size]);
81
85 void set_key(const unsigned char key[key_size]);
86
94 void set_padding(bool value = true, bool use_pkcs7 = true);
95
97 void add(const void *data, int size);
98
102 void add(const DataBuffer &data);
103
109 bool calculate();
110
114
115 private:
116 std::shared_ptr<AES256_Decrypt_Impl> impl;
118 };
119
120 }
121
clan::AES256_Decrypt::key_size
static const int key_size
Definition: aes256_decrypt.h:71
clan
Definition: clanapp.h:35
clan::AES256_Decrypt::get_data
DataBuffer get_data() const
Get decrypted data.
clan::AES256_Decrypt::calculate
bool calculate()
Finalize decryption.
clan::AES256_Decrypt::set_padding
void set_padding(bool value=true, bool use_pkcs7=true)
Enable AES Padding.
clan::AES256_Decrypt::add
void add(const void *data, int size)
Adds data to be decrypted.
clan::AES256_Decrypt::reset
void reset()
Resets the decryption.
clan::AES256_Decrypt::set_iv
void set_iv(const unsigned char iv[iv_size])
Sets the initialisation vector.
clan::AES256_Decrypt::set_key
void set_key(const unsigned char key[key_size])
Sets the cipher key.
clan::AES256_Decrypt
AES-256 decryption class (running in Cipher Block Chaining mode)
Definition: aes256_decrypt.h:44
clan::AES256_Decrypt::iv_size
static const int iv_size
Definition: aes256_decrypt.h:70
clan::AES256_Decrypt::AES256_Decrypt
AES256_Decrypt()
Constructs a AES-256 generator (running in Cipher Block Chaining mode)
clan::DataBuffer
General purpose data buffer.
Definition: databuffer.h:42