Please use this identifier to cite or link to this item: https://doi.org/10.1109/ISCAS.2014.6865598
Title: Highly Reliable Memory-based Physical Unclonable Function Using Spin-Transfer Torque MRAM
Authors: Zhang, Le
Fong, Xuanyao 
Chang, Chip-Hong 
Kong, Zhi Hui
Roy, Kaushik 
Keywords: Science & Technology
Technology
Engineering, Electrical & Electronic
Engineering
STT MRAM
Issue Date: 1-Jan-2014
Publisher: IEEE
Citation: Zhang, Le, Fong, Xuanyao, Chang, Chip-Hong, Kong, Zhi Hui, Roy, Kaushik (2014-01-01). Highly Reliable Memory-based Physical Unclonable Function Using Spin-Transfer Torque MRAM. IEEE International Symposium on Circuits and Systems (ISCAS) : 2169-2172. ScholarBank@NUS Repository. https://doi.org/10.1109/ISCAS.2014.6865598
Abstract: In recent years, Physical Unclonable Function (PUF) based on the inimitable and unpredictable disorder of physical devices has emerged to address security issues related to cryptographic key generation. In this paper, a novel memory-based PUF based on Spin-Transfer Torque (STT) Magnetic RAM, named as STT-PUF, is proposed as a key generation primitive for embedded computing systems. By comparing the resistances of STT-MRAM memory cells which are initialized to the same state, response bits can be generated by exploiting the inherent random mismatches between them. To enhance the robustness of response bits regeneration, an Automatic Write-Back (AWB) technique is proposed without compromising the resilience of STT-PUF against possible attacks. Simulations show that the proposed STT-PUF is able to produce raw response bits with uniqueness of 50.1% and entropy of 0.985 bit per cell. The worst-case Bit-Error Rate (BER) under varying operating conditions is 6.6 × 10-6. © 2014 IEEE.
Source Title: IEEE International Symposium on Circuits and Systems (ISCAS)
URI: https://scholarbank.nus.edu.sg/handle/10635/156213
ISBN: 9781479934324
ISSN: 02714302
DOI: 10.1109/ISCAS.2014.6865598
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