aes256_decrypt.h Source File - ClanLib SDK
Description: aes256_decrypt.h Source File

aes256_decrypt.h
1/*
2** ClanLib SDK
3** Copyright (c) 1997-2020 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** Mark Page
27*/
28
29
30#pragma once
31
32#include <memory>
33
34namespace clan
35{
38
39 class DataBuffer;
40 class AES256_Decrypt_Impl;
41
43 class AES256_Decrypt
44 {
45 public:
47 AES256_Decrypt();
48
54 DataBuffer get_data() const;
55
56 static const int iv_size = 16;
57 static const int key_size = 32;
58
60 void reset();
61
66 void set_iv(const unsigned char iv[iv_size]);
67
71 void set_key(const unsigned char key[key_size]);
72
80 void set_padding(bool value = true, bool use_pkcs7 = true);
81
83 void add(const void *data, int size);
84
88 void add(const DataBuffer &data);
89
95 bool calculate();
96
97 private:
98 std::shared_ptr<AES256_Decrypt_Impl> impl;
99 };
100
102}
clan::AES256_Decrypt::set_padding
void set_padding(bool value=true, bool use_pkcs7=true)
Enable AES Padding.
clan::AES256_Decrypt::iv_size
static const int iv_size
Definition aes256_decrypt.h:56
clan::AES256_Decrypt::reset
void reset()
Resets the decryption.
clan::AES256_Decrypt::add
void add(const DataBuffer &data)
Add data to be decrypted.
clan::AES256_Decrypt::key_size
static const int key_size
Definition aes256_decrypt.h:57
clan::AES256_Decrypt::AES256_Decrypt
AES256_Decrypt()
Constructs a AES-256 generator (running in Cipher Block Chaining mode).
clan::AES256_Decrypt::set_iv
void set_iv(const unsigned char iv[iv_size])
Sets the initialisation vector.
clan::AES256_Decrypt::get_data
DataBuffer get_data() const
Get decrypted data.
clan::AES256_Decrypt::set_key
void set_key(const unsigned char key[key_size])
Sets the cipher key.
clan::AES256_Decrypt::add
void add(const void *data, int size)
Adds data to be decrypted.
clan::AES256_Decrypt::calculate
bool calculate()
Finalize decryption.
clan::DataBuffer
General purpose data buffer.
Definition databuffer.h:42
clan
Definition clanapp.h:36