A Group-Based Ring Oscillator Physical Unclonable Function

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dc.contributor.advisorQu, Gangen_US
dc.contributor.authorYin, Chi-Enen_US
dc.contributor.departmentElectrical Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2012-07-07T06:13:38Z
dc.date.available2012-07-07T06:13:38Z
dc.date.issued2012en_US
dc.description.abstractSilicon Physical Unclonable Function (PUF) is a physical structure of the chip which has functional characteristics that are hard to predict before fabrication but are expected to be unique after fabrication. This is caused by the random fabrication variations. The secret characteristics can only be extracted through physical measurement and will vanish immediately when the chip is powered down. PUF promises a securer means for cryptographic key generation and storage among many other security applications. However, there are still many practical challenges to cost effectively build secure and reliable PUF secrecy. This dissertation proposes new architectures for ring oscillator (RO) PUFs to answer these challenges. First, our temperature-aware cooperative (TAC) RO PUF can utilize certain ROs that were otherwise discarded due to their instability. Second, our novel group-based algorithm can generate secrecy higher than the theoretical upper bound of the conventional pairwise comparisons approach. Third, we build the first regression-based entropy distiller that can turn the PUF secrecy statistically random and robust, meeting the NIST standards. Fourth, we develop a unique Kendall syndrome coding (KSC) that makes the PUF secrecy error resilient against potential environmental fluctuations. Each of these methods can improve the hardware efficiency of the RO PUF implementation by 1.5X to 8X while improving the security and reliability of the PUF secrecy.en_US
dc.identifier.urihttp://hdl.handle.net/1903/12734
dc.subject.pqcontrolledElectrical engineeringen_US
dc.subject.pqcontrolledComputer engineeringen_US
dc.subject.pqcontrolledComputer scienceen_US
dc.subject.pquncontrolledcryptographyen_US
dc.subject.pquncontrolledfabrication variationen_US
dc.subject.pquncontrolledphysical unclonable functionen_US
dc.subject.pquncontrolledrandom numberen_US
dc.subject.pquncontrolledring oscillatoren_US
dc.subject.pquncontrolledsecurityen_US
dc.titleA Group-Based Ring Oscillator Physical Unclonable Functionen_US
dc.typeDissertationen_US

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