TRUE RANDOM NUMBER GENERATOR WITH REPEATEDLY ACTIVATED OSCILLATOR

摘要

A true random number generator (RNG) has one or more oscillators and an output register for storing a random number output. Each of the oscillators is activated, successively, in a free-running oscillation phase, and a capture phase during which the oscillator is quiescent. The output register latches during the capture phase of each oscillator an end state of that oscillator at or close to the end of its oscillation phase. The random number output is derived from the latched end states.

主权项

1. A true random number generator (TRNG), comprising:
one or more oscillators; and an output register connected to the one or more oscillators for storing a random number output, wherein each of the one or more oscillators is activated, successively, with a free-running oscillation phase and a capture phase during which the oscillator is quiescent, and wherein the output register latches during the capture phase of each oscillator an end state of that oscillator at or close to the end of its oscillation phase, and a random number is derived from the latched end states.