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