Device security with physically unclonable functions

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12141786
APP PUB NO 20230401561A1
SERIAL NO

18238138

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Importance

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Abstract

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An electronic device may include a printed circuit board having a physically unclonable function (PUF) source. The electronic device may also include processing circuitry positioned on the printed circuit board. The PUF source includes a plurality of traces and each trace includes a first portion and a second portion having an increased surface area relative to the first portion. The PUF source is responsive to an input from the processing circuitry to provide PUF data based on the impedance characteristics of the plurality of traces. The processing circuitry is further configured to process the PUF data from the PUF source to perform an operation within the device.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
BLOCK INC1455 MARKET ST SUITE 600 SAN FRANCISCO CA 94103

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Guise, Max Joseph San Francisco, US 20 225
Leesti, Bertram Toronto, CA 12 59
Rezayee, Afshin Richmond Hill, CA 73 745
Sharifi, Kamran Toronto, CA 13 142
Wade, Jeremy San Francisco, US 75 1135
Yang, Yue Thornhill, CA 181 1146

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