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Design of a reliable PUF circuit based on R–2R ladder digital-to-analog convertor*Project supported by the National Natural Science Foundation of China (Nos. 61474068, 61404076, 61274132), the Zhejiang Provincial Natural Science Foundation of China (No. LQ14F040001), and the K. C. Wong Magna Fund in Ningbo University, China. (July 2015)
Record Type:
Journal Article
Title:
Design of a reliable PUF circuit based on R–2R ladder digital-to-analog convertor*Project supported by the National Natural Science Foundation of China (Nos. 61474068, 61404076, 61274132), the Zhejiang Provincial Natural Science Foundation of China (No. LQ14F040001), and the K. C. Wong Magna Fund in Ningbo University, China. (July 2015)
Main Title:
Design of a reliable PUF circuit based on R–2R ladder digital-to-analog convertor*Project supported by the National Natural Science Foundation of China (Nos. 61474068, 61404076, 61274132), the Zhejiang Provincial Natural Science Foundation of China (No. LQ14F040001), and the K. C. Wong Magna Fund in Ningbo University, China.
<abstract> <title>Abstract</title> <p>A novel physical unclonable functions (PUF) circuit is proposed, which relies on non-linear characteristic of analog voltage generated by R–2R ladder DAC. After amplifying the deviation signal, the robustness of the DAC-PUF circuit has increased significantly. The DAC-PUF circuit is designed in TSMC 65 nm CMOS technology and the layout occupies 86.06 × 63.56 <italic>μ</italic>m<sup>2</sup>. Monte Carlo simulation results show that the reliability of the DAC-PUF circuit is above 98% over a comprehensive range of environmental variation, such as temperature and supply voltage.</p> </abstract>