Enhanced circuity security through hidden state transitions

A state machine system on a chip presents hidden state transitions to create IC knowledge not available in a logical netlist and temporal key dependencies to increase the difficulty of executing the SAT attack. The change in the state space of a circuit over time may be used to increase circuit secu...

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Bibliographische Detailangaben
Hauptverfasser: Juretus, Kyle Joseph, Savidis, Ioannis
Format: Patent
Sprache:eng
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Zusammenfassung:A state machine system on a chip presents hidden state transitions to create IC knowledge not available in a logical netlist and temporal key dependencies to increase the difficulty of executing the SAT attack. The change in the state space of a circuit over time may be used to increase circuit security. Hidden transitions that are frequency dependent, state dependent keys, and temporally dependent transition keys may be used as ways to increase security against SAT based attacks.