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Design of an on-chip random number generator using metastability

Lookup NU author(s): Professor David Kinniment, Dr Graeme Chester


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This paper shows that the internal noise in a bistable exhibits a Gaussian distribution, and is close to the value expected from thermal agitation. We describe a random number generator based on this property that is capable of on chip integration, and is a primary source of high entropy data at 100 MHz. The device is held close to metastability by a feedback loop, and is therefore relatively insensitive to circuit asymmetries and drift. Measurements of post-processed data from this source also show a relatively high bit rate and sequences of 2/sup 23/ bits are shown to pass stringent tests for randomness.

Publication metadata

Author(s): Chester EG; Kinniment DJ

Editor(s): Baschirotto, A., Malcovati, P.

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 28th European Solid-State Circuit Conference (ESSCIRC)

Year of Conference: 2002

Pages: 595-598