Random number generator using an incrementing function
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United States of America Patent
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Oct 17, 2017
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app pub date -
Sep 10, 2014
filing date -
Sep 10, 2013
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Abstract
A random number generator uses a looped circuit that produces pulses dependent on manufacturing variations and noise, and fed into a counting circuit. In certain embodiments, the technology can be merged with a Physical Unclonable Function (PUF) such that a single circuit provides both 1) bits that are unique to each chip that remain fairly similar each time they are queried on the same chip; as well as 2) bits that are random, i.e., different each time the randomness is queried, even on the same device.
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