Random number generator

摘要

A random number generator includes oscillating units configured to generate entropy sources and amplify the generated entropy sources, an entropy source combination unit configured to receive the entropy sources output from the oscillating units and combine the entropy sources to increase entropy, a sampling unit configured to sample a signal output from the entropy source combination unit in response to a sampling clock, and a clock generator and control unit configured to control the oscillating units and generate the sampling clock.

主权项

1. A random number generator, comprising:
oscillating units configured to generate entropy sources, amplify the generated entropy sources, and output the amplified entropy sources; an entropy source combination unit configured to receive the entropy sources output from the oscillating units and combine the entropy sources to increase entropy; a sampling unit configured to sample a signal output from the entropy source combination unit in response to a sampling clock; and a clock generator and control unit configured to control the oscillating units and generate the sampling clock, wherein at least one of the oscillating units comprises: a source unit configured to converge to a level of a meta-stability state and generate a noise source in a meta-stability mode; and an amplification unit comprising a plurality of inverters connected in series to amplify the generated noise source in the meta-stability mode, wherein an output of the amplification unit is connected to the source unit to form a ring oscillator in an oscillation mode.