Research on optical one-way cryptosystem

Wenqi He; Xiang Peng; Xiangfeng Meng

doi:10.1117/12.868289

2 December 2010 Research on optical one-way cryptosystem

Wenqi He, Xiang Peng, Xiangfeng Meng

Proceedings Volume 7851, Information Optics and Optical Data Storage; 78510B (2010) https://doi.org/10.1117/12.868289
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

In this paper, we introduced a concept of cascaded phase-truncated Fourier transforms (CPTFTs), which is a nonlinear iterative operator. Meanwhile, an optical/digital hybrid system was presented to implement the operator of CPTFTs. Thereafter, by adopting CPTFTs as main processing unit, we have done some research on optical one-way cryptosystem: an optical Hash function (O-Hash) and a keyed optical Hash function (K-O-Hash) were put forward respectively, which can be applied to message integrity check and authentication. Both of the O-Hash and K-O-Hash can transform an arbitrary-length pre-encoded message (without or with a secret key) into a fixed-length output by means of taking a two-step one-way encryption process. Finally, a set of numerical experiments were carried out to evaluate the performance of avalanche effect and collision resistance of the O-Hash and K-O-Hash constructed with our approach.

Citation Download Citation

Wenqi He, Xiang Peng, and Xiangfeng Meng "Research on optical one-way cryptosystem", Proc. SPIE 7851, Information Optics and Optical Data Storage, 78510B (2 December 2010); https://doi.org/10.1117/12.868289

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KEYWORDS

Fourier transforms

Modulation

Symmetric-key encryption

Computer security

Hybrid optics

Computer programming

Cryptography

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