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Information 2018, 9(9), 224; https://doi.org/10.3390/info9090224

Reliable Delay Based Algorithm to Boost PUF Security Against Modeling Attacks

1
School of Computing, University of Southern Mississippi, Hattiesburg, MS 39406, USA
2
Department of Electrical Engineering and Computer Science, University of Toledo, Toledo, OH 43606-3390, USA
3
Department of Electrical Engineering, University of South Florida, Tampa, FL 33620, USA
This paper is an extended version of our paper published in the Annual IEEE Connecticut Conference on Industrial Electronics, Technology and Automation (CT-IETA), Bridgeport, CT, USA, 14–15 October 2016.
*
Author to whom correspondence should be addressed.
Received: 6 July 2018 / Revised: 15 August 2018 / Accepted: 18 August 2018 / Published: 3 September 2018
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Abstract

Silicon Physical Unclonable Functions (sPUFs) are one of the security primitives and state-of-the-art topics in hardware-oriented security and trust research. This paper presents an efficient and dynamic ring oscillator PUFs (d-ROPUFs) technique to improve sPUFs security against modeling attacks. In addition to enhancing the Entropy of weak ROPUF design, experimental results show that the proposed d-ROPUF technique allows the generation of larger and updated challenge-response pairs (CRP space) compared with simple ROPUF. Additionally, an innovative hardware-oriented security algorithm, namely, the Optimal Time Delay Algorithm (OTDA), is proposed. It is demonstrated that the OTDA algorithm significantly improves PUF reliability under varying operating conditions. Further, it is shown that the OTDA further efficiently enhances the d-ROPUF capability to generate a considerably large set of reliable secret keys to protect the PUF structure from new cyber-attacks, including machine learning and modeling attacks. View Full-Text
Keywords: hardware security; PUFs; reliability; FPGAs; modeling attacks hardware security; PUFs; reliability; FPGAs; modeling attacks
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Amsaad, F.; Niamat, M.; Dawoud, A.; Kose, S. Reliable Delay Based Algorithm to Boost PUF Security Against Modeling Attacks. Information 2018, 9, 224.

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