Optical cryptanalysis of DRPE-based encryption systems

Wan Qin; Wenqi He

doi:10.1117/12.839999

17 November 2009 Optical cryptanalysis of DRPE-based encryption systems

Wan Qin, Wenqi He

Proceedings Volume 7512, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Information Security; 751203 (2009) https://doi.org/10.1117/12.839999
Event: International Conference on Optical Instrumentation and Technology, 2009, Shanghai, China

Abstract

In this paper, we analyze the security of the classical double random phase encoding (DRPE) technique in Fourier domain, as well as its extended schemes in Fresnel and fractional Fourier domains. These schemes are resistant to bruteforce attacks, for their large key spaces. However, due to the linearity property of their encryption transformations, they are vulnerable to other attacks, such as chosen-plaintext attack and known-plaintext attack. We successfully break each of the three encryption schemes with the help of a certain quantity of plaintext-ciphertext pairs. Each attack is validated by computer simulations. The cryptanalysis indicates that, to minimize the risks, it is recommendable to introduce nonlinear operations to optical encryption systems.

Citation Download Citation

Wan Qin and Wenqi He "Optical cryptanalysis of DRPE-based encryption systems", Proc. SPIE 7512, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Information Security, 751203 (17 November 2009); https://doi.org/10.1117/12.839999

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