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26 lines
674 B
26 lines
674 B
// Copyright (c) 2017 The Bitcoin Core developers |
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// Distributed under the MIT software license, see the accompanying |
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// file COPYING or http://www.opensource.org/licenses/mit-license.php. |
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#ifndef BITCOIN_CRYPTO_CHACHA20_H |
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#define BITCOIN_CRYPTO_CHACHA20_H |
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#include <stdint.h> |
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#include <stdlib.h> |
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/** A PRNG class for ChaCha20. */ |
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class ChaCha20 |
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{ |
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private: |
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uint32_t input[16]; |
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public: |
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ChaCha20(); |
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ChaCha20(const unsigned char* key, size_t keylen); |
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void SetKey(const unsigned char* key, size_t keylen); |
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void SetIV(uint64_t iv); |
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void Seek(uint64_t pos); |
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void Output(unsigned char* output, size_t bytes); |
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}; |
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#endif // BITCOIN_CRYPTO_CHACHA20_H
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