41 lines
1.0 KiB
C++
41 lines
1.0 KiB
C++
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/*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Copyright 2015 Danny Robson <danny@nerdcruft.net>
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*/
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#ifndef CRUFT_CRYPTO_STREAM_RC4_HPP
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#define CRUFT_CRYPTO_STREAM_RC4_HPP
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#include <array>
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#include <cstdint>
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#include <cstddef>
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namespace cruft::crypto::stream {
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class RC4 {
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public:
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RC4 (const uint8_t *restrict key, size_t len);
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void discard (size_t);
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void generate (uint8_t *restrict dst, size_t len);
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private:
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uint8_t get (void);
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size_t x, y;
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std::array<uint8_t,256> S;
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};
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}
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#endif
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