RANDOM NUMBER GENERATOR AND RANDOM NUMBER GENERATION METHOD

摘要

A random number generator for generating a physical random number on the basis of noise which a noise generating device randomly generates, and a random number generation method, for generating a true random number at a higher speed and uniforming the occurrence frequencies of random number values in spite of a simple circuit configuration. A random number generator amplifies a waveform based on thermal noise produced by a thermal noise generating device. When an output signal rises from a value lower than a predetermined threshold and exceeds the threshold value, this generator generates a random pulse. A reference pulse generating means for generating reference pulses at a constant rate and a clocking means for measuring the time interval between a reference pulse and a random pulse are provided to output a measurement value by this clocking means as a random number value.