Authentication of optical physical unclonable functions based on single-pixel detection

Abstract

Physical unclonable function (PUF) has been proposed as a promising and trustworthy solution to a variety of cryptographic applications. Here we propose a non-imaging 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 10^-28. In comparison to the conventional laser-speckle-imaging based authentication with unique identity information obtained from textures of laser speckle patterns, this non-imaging 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.

arXiv comment12 pages, 11 figures

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Cited by in corpus (3)

• Flexible Physical Unclonable Functions based on non-deterministically distributed Dye-Doped Fibers and Droplets
• Quantifying the Sensitivity and Unclonability of Optical Physical Unclonable Functions
• Effects of Kerr nonlinearity in physical unclonable functions