Authentication of Optical Physical Unclonable Functions Based on Single-Pixel Detection

Pidong Wang, Feiliang Chen, Dong Li, Song Sun, Feng Huang, Taiping Zhang, Qian Li, Kun Chen, Yongbiao Wan, Xiao Leng, and Yao Yao
Phys. Rev. Applied 16, 054025 – Published 11 November 2021

Abstract

Physical unclonable function (PUF) has been proposed as a promising and trustworthy solution to a variety of cryptographic applications. Here we propose a nonimaging-based authentication scheme for optical PUFs materialized by random scattering media, in which the characteristic fingerprints of optical PUFs are extracted from stochastical fluctuations of the scattered light intensity with respect to laser challenges, which are detected by a single-pixel detector. The randomness, uniqueness, unpredictability, and robustness of the extracted fingerprints are validated to be qualified for real authentication applications. By increasing the key length and improving the signal-to-noise ratio, the false accept rate of a fake PUF can be dramatically lowered to the order of 1028. In comparison to the conventional laser-speckle-imaging-based authentication with unique identity information obtained from textures of laser-speckle patterns, this nonimaging scheme can be implemented at small speckle size bellowing the Nyquist–Shannon sampling criterion of the commonly used CCD or CMOS cameras, offering benefits in system miniaturization and immunity against reverse engineering attacks simultaneously.

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  • Received 6 May 2021
  • Revised 17 September 2021
  • Accepted 15 October 2021

DOI:https://doi.org/10.1103/PhysRevApplied.16.054025

© 2021 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

Pidong Wang1,2,*, Feiliang Chen1,2, Dong Li1,2, Song Sun1,2, Feng Huang1,2, Taiping Zhang1,2, Qian Li1,2, Kun Chen1,2, Yongbiao Wan1,2, Xiao Leng1,2, and Yao Yao1,2,†

  • 1Microsystem and Terahertz Research Center, China Academy of Engineering Physics, Chengdu 610200, China
  • 2Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang 621999, China

  • *wangpidong_mtrc@caep.cn
  • yaoyao_mtrc@caep.cn

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Vol. 16, Iss. 5 — November 2021

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