libcruft-util/crypto/xtea.hpp

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/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Copyright 2015 Danny Robson <danny@nerdcruft.net>
*/
#ifndef __UTIL_TEA_HPP
#define __UTIL_TEA_HPP
#include <array>
#include <cstdint>
#include <cstddef>
namespace util { namespace crypto {
// http://en.wikipedia.org/wiki/XTEA
class XTEA {
public:
using key_t = std::array<uint32_t,4>;
explicit XTEA (key_t);
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void encrypt (uint32_t *restrict data, size_t count);
void decrypt (uint32_t *restrict data, size_t count);
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private:
key_t m_key;
};
} }
#endif