34 lines
865 B
C++
34 lines
865 B
C++
/*
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
*
|
|
* Copyright 2018 Danny Robson <danny@nerdcruft.net>
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <cstddef>
|
|
#include <array>
|
|
|
|
#include <cruft/util/std.hpp>
|
|
#include <cruft/util/view.hpp>
|
|
|
|
namespace cruft::crypto::block {
|
|
/// An implementation of the RC2 block cipher (RFC2268)
|
|
class rc2 {
|
|
public:
|
|
using word_t = u16;
|
|
using block_t = std::array<word_t,4>;
|
|
|
|
explicit rc2 (cruft::view<u08 const*> key, int effective_bits);
|
|
explicit rc2 (cruft::view<u08 const*> key);
|
|
|
|
block_t encrypt (block_t src) const noexcept;
|
|
block_t decrypt (block_t src) const noexcept;
|
|
|
|
private:
|
|
std::array<u16,64> m_key;
|
|
};
|
|
}
|