Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 24, 2016
Patent Application Number
13988919
Date Filed
November 23, 2011
Patent Citations Received
Patent Primary Examiner
Patent abstract
A physical unclonable function is provided 100, comprising a plurality of bus-keepers 110, each bus-keeper of the plurality of bus-keepers 110 being configured to settle into one of at least two different stable states upon power-up, the particular stable state into which a particular bus-keeper of the plurality of bus-keepers settles being dependent at least in part upon the at least partially random physical characteristics of the particular bus-keeper, and a reading circuit 120 for reading the plurality of stable states into which the plurality of bus-keepers settled after a power-up, the plurality of bus-keepers being read-only.
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