Please use this identifier to cite or link to this item: https://doi.org/10.1109/TIFS.2015.2421481
Title: Highly Reliable Spin-Transfer Torque Magnetic RAM-Based Physical Unclonable Function With Multi-Response-Bits Per Cell
Authors: Zhang, Le
Fong, Xuanyao 
Chang, Chip-Hong
Kong, Zhi Hui
Roy, Kaushik
Keywords: Science & Technology
Technology
Computer Science, Theory & Methods
Engineering, Electrical & Electronic
Computer Science
Engineering
Automatic write-back
bit alteration
spin-transfer torque magnetic RAM (STT-MRAM) MemPUF
physical unclonable function
PHASE-CHANGE MEMORY
MRAM
PUFS
Issue Date: 1-Aug-2015
Publisher: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation: Zhang, Le, Fong, Xuanyao, Chang, Chip-Hong, Kong, Zhi Hui, Roy, Kaushik (2015-08-01). Highly Reliable Spin-Transfer Torque Magnetic RAM-Based Physical Unclonable Function With Multi-Response-Bits Per Cell. IEEE TRANSACTIONS ON INFORMATION FORENSICS AND SECURITY 10 (8) : 1630-1642. ScholarBank@NUS Repository. https://doi.org/10.1109/TIFS.2015.2421481
Abstract: © 2005-2012 IEEE. Memory-based physical unclonable function (MemPUF) has gained tremendous popularity in the recent years to securely preserve secret information in computing systems. Most MemPUFs in the literature have unreliable bit generation and/or are incapable of generating more than one response-bit per cell. Hence, we propose a novel MemPUF exploiting the unique characteristics of spin-transfer torque magnetic RAM (STT-MRAM) that can overcome these issues. Bit generation in our STT-MRAM-based MemPUF is stabilized using a novel automatic write-back technique. In addition, the alterability of the magnetic tunneling junction state is exploited to expand the response-bit capacity per cell. Our analysis demonstrated the advantage of our scheme in reliability enhancement (bit-error rate from \sim 10^{-1} to \sim 10^{-6} in the worst case under varying conditions) and response-bit capacity per cell improvement (from 1 to 1.48 bit). In comparison with the conventional MemPUFs, our approach is also better in terms of the average chip area and energy for producing a response-bit.
Source Title: IEEE TRANSACTIONS ON INFORMATION FORENSICS AND SECURITY
URI: https://scholarbank.nus.edu.sg/handle/10635/156179
ISSN: 1556-6013
1556-6021
DOI: 10.1109/TIFS.2015.2421481
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