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#include <cryptopp/osrng.h>
typedef enum { RS_CRYPTOPP, RS_DEV_URANDOM, RS_DEV_RANDOM } random_source_t;
class random_source
{
private:
const random_source_t rs;
CryptoPP::AutoSeededRandomPool *rng;
std::string state_file;
bool notified_errors;
void dump_state(const std::string & file);
void retrieve_state(const std::string & file);
public:
random_source(const random_source_t rst);
random_source(const random_source_t rst, const std::string & dump_file_in);
~random_source();
void get(unsigned char *const p, const size_t n);
bool check_empty() const;
void seed(const unsigned char *const in, const size_t n, const double byte_count);
};
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