aes256_decrypt.h
1 /*
2 ** ClanLib SDK
3 ** Copyright (c) 1997-2013 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 "../api_core.h"
34 #include <memory>
35 
36 namespace clan
37 {
40 
41 class DataBuffer;
42 class AES256_Decrypt_Impl;
43 
45 class CL_API_CORE AES256_Decrypt
46 {
49 
50 public:
53 
57 
58 public:
64  DataBuffer get_data() const;
65 
69 
70 public:
71  static const int iv_size = 16;
72  static const int key_size = 32;
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 
95  void set_padding(bool value = true, bool use_pkcs7 = true);
96 
98  void add(const void *data, int size);
99 
103  void add(const DataBuffer &data);
104 
110  bool calculate();
111 
115 
116 private:
117  std::shared_ptr<AES256_Decrypt_Impl> impl;
119 };
120 
121 }
122 
AES-256 decryption class (running in Cipher Block Chaining mode)
Definition: aes256_decrypt.h:45
General purpose data buffer.
Definition: databuffer.h:43