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Erschienen in: Journal of Electronic Testing 5/2022

14.10.2022

Using both Stable and Unstable SRAM Bits for the Physical Unclonable Function

verfasst von: Zhi-Wei Lai, Po-Hua Huang, Kuen-Jong Lee

Erschienen in: Journal of Electronic Testing | Ausgabe 5/2022

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Abstract

Recently Physical Unclonable Functions (PUFs) of IC chips have been used in electronic systems for secret key generation and device authentication. Among all available PUFs, SRAM PUF is a popular one because SRAM is a standard component for most electronic devices, and it possesses good randomness during power-on. Previously only strongly stable SRAM bits are selected as PUF bits, which generally requires a large number of SRAM bits. Furthermore, SRAM PUFs may suffer from PUF clone attacks as attackers may use the Photon Emission Analysis (PEA) device to observe the behavior of stable bits and conduct circuit edit via Focused Ion Beam (FIB) to produce identical PUFs. In this paper we propose two methods that employ unstable bits as PUF bits in addition to stable bits to increase the SRAM bit usage rate. These two methods can resist the PUF clone attack as it is very difficult to reproduce unstable bits. Extensive experiments have been conducted, and the results show that though unstable bits are used, high reliability is still achieved.
Literatur
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Zurück zum Zitat Mathew SK, Satpathy SK, Anders MA, Kaul H, Hsu SK, Agarwal A, Chen GK, Parker RJ, Krishnamurthy RK, De V (2014) “A 0.19pJ/b PVT-variation-tolerant hybrid physically unclonable function circuit for 100% stable secure key generation in 22nm CMOS,” in Proc. IEEE International Solid-State Circuits Conference (ISSCC), pp. 278–279. https://​doi.​org/​10.​1109/​ISSCC.​2014.​6757433 Mathew SK, Satpathy SK, Anders MA, Kaul H, Hsu SK, Agarwal A, Chen GK, Parker RJ, Krishnamurthy RK, De V (2014) “A 0.19pJ/b PVT-variation-tolerant hybrid physically unclonable function circuit for 100% stable secure key generation in 22nm CMOS,” in Proc. IEEE International Solid-State Circuits Conference (ISSCC), pp. 278–279. https://​doi.​org/​10.​1109/​ISSCC.​2014.​6757433
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Metadaten
Titel
Using both Stable and Unstable SRAM Bits for the Physical Unclonable Function
verfasst von
Zhi-Wei Lai
Po-Hua Huang
Kuen-Jong Lee
Publikationsdatum
14.10.2022
Verlag
Springer US
Erschienen in
Journal of Electronic Testing / Ausgabe 5/2022
Print ISSN: 0923-8174
Elektronische ISSN: 1573-0727
DOI
https://doi.org/10.1007/s10836-022-06025-8

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