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37 lines
1.0 KiB
37 lines
1.0 KiB
5 years ago
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#ifndef CRYPTOPP_RANDPOOL_H
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#define CRYPTOPP_RANDPOOL_H
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#include "cryptlib.h"
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#include "filters.h"
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#include "secblock.h"
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#include "smartptr.h"
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#include "aes.h"
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NAMESPACE_BEGIN(CryptoPP)
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//! Randomness Pool
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/*! This class can be used to generate cryptographic quality
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pseudorandom bytes after seeding the pool with IncorporateEntropy() */
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class CRYPTOPP_DLL RandomPool : public RandomNumberGenerator, public NotCopyable
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{
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public:
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RandomPool();
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bool CanIncorporateEntropy() const {return true;}
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void IncorporateEntropy(const byte *input, size_t length);
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void GenerateIntoBufferedTransformation(BufferedTransformation &target, const std::string &channel, lword size);
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// for backwards compatibility. use RandomNumberSource, RandomNumberStore, and RandomNumberSink for other BufferTransformation functionality
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void Put(const byte *input, size_t length) {IncorporateEntropy(input, length);}
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private:
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FixedSizeSecBlock<byte, 32> m_key;
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FixedSizeSecBlock<byte, 16> m_seed;
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member_ptr<BlockCipher> m_pCipher;
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bool m_keySet;
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};
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NAMESPACE_END
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#endif
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