NDLI: A non-volatile memory based physically unclonable function without helper data

Content Provider	IEEE Xplore Digital Library
Author	Wenjie Che Plusquellic, J. Bhunia, S.
Copyright Year	2014
Description	Author affiliation: ECE Dept., Univ. of New Mexico, Albuquerque, NM, USA (Wenjie Che; Plusquellic, J.) \|\| EECS Dept., Case Western Reserve Univ., Cleveland, OH, USA (Bhunia, S.)
Abstract	Stability across environmental variations such as temperature and voltage, is critically important for Physically Unclonable Functions (PUFs). Nearly all existing PUF systems to date need a mechanism to deal with “bit flips” when exact regeneration of the bitstring is required, e.g., for cryptographic applications. Error correction (ECC) and error avoidance schemes have been proposed but both of these require helper data to be stored for the regeneration process. Unfortunately, helper data adds time and area overhead to the PUF system and provides opportunities for adversaries to reverse engineer the secret bitstring. In this paper, we propose a non-volatile memory-based (NVM) PUF that is able to avoid bit flips without requiring any type of helper data. A voltage-to-digital converter technique is described for digitizing the analog entropy source and a robust median-finding algorithm is proposed as the reprograming strategy. Analysis on published experimental data is presented to demonstrate the practicability of our proposed strategy. We describe the technique in the context of emerging nano-devices, in particular, resistive random access memory (Memristor) cells, but the methodology is applicable to any type of NVM including Flash.
Starting Page	148
Ending Page	153
File Size	931712
Page Count	6
File Format	PDF
ISBN	9781479962785
DOI	10.1109/ICCAD.2014.7001345
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-11-02
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Memristors Resistance Nonvolatile memory Entropy Random access memory Reliability Histograms Memristor Physically Unclonable Functions Helper data
Content Type	Text
Resource Type	Article

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