Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/81334
Title: A Low-Power Hybrid RO PUF With Improved Thermal Stability for Lightweight Applications
Authors: Cao, Yuan
Zhang, Le
Chang, Chip-Hong
Chen, Shoushun
Keywords: Hardware security
Physical unclonable function (PUF)
Process variation
Ring oscillator (RO)
Temperature stability
Issue Date: 2015
Source: Cao, Y., Zhang, L., Chang, C.-H., & Chen, S. (2015). A Low-Power Hybrid RO PUF With Improved Thermal Stability for Lightweight Applications. IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, 34(7), 1143-1147.
Series/Report no.: IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Abstract: Ring oscillator (RO) based physical unclonable function (PUF) is resilient against noise impacts, but its response is susceptible to temperature variations. This paper presents a low-power and small footprint hybrid RO PUF with a very high temperature stability, which makes it an ideal candidate for lightweight applications. The negative temperature coefficient of the low-power subthreshold operation of current starved inverters is exploited to mitigate the variations of differential RO frequencies with temperature. The new architecture uses conspicuously simplified circuitries to generate and compare a large number of pairs of RO frequencies. The proposed 9- stage hybrid RO PUF was fabricated using GF 65 nm CMOS technology. The PUF occupies only 250 m2 of chip area and consumes only 32.3 W per CRP at 1.2 V and 230 MHz. The measured average and worst-case reliability of its responses are 99.84% and 97.28%, respectively over a wide range of temperature from 40 to 120 ◦C.
URI: https://hdl.handle.net/10356/81334
http://hdl.handle.net/10220/39237
ISSN: 0278-0070
DOI: 10.1109/TCAD.2015.2424955
Rights: © 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: [http://dx.doi.org/10.1109/TCAD.2015.2424955].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles
ERI@N Journal Articles

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