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Dijital Arşivi

Realization and analysis of high performance physical unclonable functions based on ring oscillators

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dc.contributor Ph.D. Program in Electrical and Electronic Engineering.
dc.contributor.advisor Dündar, Günhan,
dc.contributor.advisor Pusane, Ali Emre.
dc.contributor.author Kömürcü, Giray.
dc.date.accessioned 2023-03-16T10:25:10Z
dc.date.available 2023-03-16T10:25:10Z
dc.date.issued 2014.
dc.identifier.other EE 2014 K66 PhD
dc.identifier.uri http://digitalarchive.boun.edu.tr/handle/123456789/13120
dc.description.abstract Physical Unclonable Functions (PUFs) are powerful techniques that are proposed recently to address security related problems. They have a wide range of applications including cryptographic key generation and storage, authentication, identity generation, and intellectual property protection. PUFs o er new, low cost, and secure solutions in these areas with their ability to generate chip speci c signatures on the y. In the scope of the thesis study, quality metrics for the robustness and uniqueness properties of PUF circuits are derived. Con dence interval and con dence level concepts are adapted to PUF performance evaluation for the reliability of the results. Theoretical background of Ring Oscillators (ROs) is studied to analyze the e ect of the number of stages and measurement time in RO-PUFs. Depending on the theoretical calculations, optimum number of stages and measurement time are determined and the theory is validated via experimental analysis. Then, ordering based RO-PUFs, which aim to maximize the robustness and entropy extraction, are discussed and dynamic programming is adapted for achieving lower complexity in the grouping step. Next, systematic analysis of the bit error probability in ordering based RO-PUFs is performed and area usage vs. robustness tradeo is presented. Implementation and analysis of error correction codes to maintain the robustness in ordering based RO-PUFs are also discussed. In addition to these, two challenge-response pair enhancement methods for ordering based RO-PUFs are introduced. Finally, e ects of aging on ordering based RO-PUFs and compensation mechanisms are presented.
dc.format.extent 30 cm.
dc.publisher Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014.
dc.subject.lcsh Integrated circuits -- Design and construction -- Data processing.
dc.title Realization and analysis of high performance physical unclonable functions based on ring oscillators
dc.format.pages xx, 138 leaves ;


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