Security

Privacy-Preserving and Tokenless Chaotic Revocable Face Authentication Scheme

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Executive Summary

With the large-scale proliferation of biometric systems, privacy and irrevocability issues of their data have become a hot research issue. Recently, some researchers proposed a couple of schemes to generate BioHash, e.g., PalmHash, however, in this paper, the authors point out that the previous schemes are costly in terms of computational complexity and possession of USB tokens to generate pseudorandom numbers. To overcome the problems, they propose a novel chaotic FaceHashing scheme which preserves privacy of a biometric user. The presented scheme does not need users to posses USB tokens in generating pseudorandom sequences, which is a cost-effective solution. Besides, their scheme minimizes the system complexity with simple operations to attain the FaceHash.

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