| Disk ARchive 2.7.14 Full featured and portable backup and archiving tool

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crypto_module.hpp
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1/*********************************************************************/
2// dar - disk archive - a backup/restoration program
3// Copyright (C) 2002-2024 Denis Corbin
4//
5// This program is free software; you can redistribute it and/or
6// modify it under the terms of the GNU General Public License
7// as published by the Free Software Foundation; either version 2
8// of the License, or (at your option) any later version.
9//
10// This program is distributed in the hope that it will be useful,
11// but WITHOUT ANY WARRANTY; without even the implied warranty of
12// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13// GNU General Public License for more details.
14//
15// You should have received a copy of the GNU General Public License
16// along with this program; if not, write to the Free Software
17// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18//
19// to contact the author, see the AUTHOR file
20/*********************************************************************/
21
27
28#ifndef CRYPTO_MODULE_HPP
29#define CRYPTO_MODULE_HPP
30
31#include "../my_config.h"
32#include <string>
33#include <memory>
34
35#include "infinint.hpp"
36#include "integers.hpp"
37
38 namespace libdar
39{
40
43
44 class crypto_module
45 {
46 public:
47 crypto_module() {};
48 crypto_module(const crypto_module & ref) = default;
49 crypto_module(crypto_module && ref) noexcept = default;
50 crypto_module & operator = (const crypto_module & ref) = default;
51 crypto_module & operator = (crypto_module && ref) noexcept = default;
52 virtual ~crypto_module() noexcept = default;
53
55
61 virtual U_32 encrypted_block_size_for(U_32 clear_block_size) = 0;
62
64
71 virtual U_32 clear_block_allocated_size_for(U_32 clear_block_size) = 0;
72
74
83 virtual U_32 encrypt_data(const infinint & block_num,
84 const char *clear_buf,
85 const U_32 clear_size,
86 const U_32 clear_allocated,
87 char *crypt_buf,
88 U_32 crypt_size) = 0;
89
91
98 virtual U_32 decrypt_data(const infinint & block_num,
99 const char *crypt_buf,
100 const U_32 crypt_size,
101 char *clear_buf,
102 U_32 clear_size) = 0;
103
104
105 virtual std::unique_ptr<crypto_module> clone() const = 0;
106 };
108
109} // end of namespace
110
111#endif
infinint.hpp
switch module to limitint (32 ou 64 bits integers) or infinint
integers.hpp
are defined here basic integer types that tend to be portable
libdar
libdar namespace encapsulate all libdar symbols
Definition archive.hpp:47