Please use this identifier to cite or link to this item: https://doi.org/10.1002/smll.202302842
Title: Attack Resilient True Random Number Generators Using Ferroelectric-Enhanced Stochasticity in 2D Transistor
Authors: Chien, Yu-Chieh
Xiang, Heng 
Wang, Jianze
Shi, Yufei
Fong, Xuanyao 
Ang, Kah-Wee 
Keywords: Science & Technology
Physical Sciences
Technology
Chemistry, Multidisciplinary
Chemistry, Physical
Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Physics, Applied
Physics, Condensed Matter
Chemistry
Science & Technology - Other Topics
Materials Science
Physics
ferroelectric
true random number generators
2D transistors
SHORT-TERM-MEMORY
Issue Date: 20-Sep-2023
Publisher: WILEY-V C H VERLAG GMBH
Citation: Chien, Yu-Chieh, Xiang, Heng, Wang, Jianze, Shi, Yufei, Fong, Xuanyao, Ang, Kah-Wee (2023-09-20). Attack Resilient True Random Number Generators Using Ferroelectric-Enhanced Stochasticity in 2D Transistor. SMALL 19 (38). ScholarBank@NUS Repository. https://doi.org/10.1002/smll.202302842
Abstract: By harnessing the physically unclonable properties, true random number generators (TRNGs) offer significant promises to alleviate security concerns by generating random bitstreams that are cryptographically secured. However, fundamental challenges remain as conventional hardware often requires complex circuitry design, showing a predictable pattern that is susceptible to machine learning attacks. Here, a low-power self-corrected TRNG is presented by exploiting the stochastic ferroelectric switching and charge trapping in molybdenum disulfide (MoS2) ferroelectric field-effect transistors (Fe-FET) based on hafnium oxide complex. The proposed TRNG exhibits enhanced stochastic variability with near-ideal entropy of ≈1.0, Hamming distance of ≈50%, independent autocorrelation function, and reliable endurance cycle against temperature variations. Furthermore, its unpredictable feature is systematically examined by machine learning attacks, namely the predictive regression model and the long-short-term-memory (LSTM) approach, where nondeterministic predictions can be concluded. Moreover, the generated cryptographic keys from the circuitry successfully pass the National Institute of Standards and Technology (NIST) 800–20 statistical test suite. The potential of integrating ferroelectric and 2D materials is highlighted for advanced data encryption, offering a novel alternative to generate truly random numbers.
Source Title: SMALL
URI: https://scholarbank.nus.edu.sg/handle/10635/245740
ISSN: 1613-6810
1613-6829
DOI: 10.1002/smll.202302842
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