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Proceedings Paper

Optical cryptanalysis of DRPE-based encryption systems
Author(s): Wan Qin; Wenqi He
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Paper 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.

Paper Details

Date Published: 17 November 2009
PDF: 9 pages
Proc. SPIE 7512, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Information Security, 751203 (17 November 2009); doi: 10.1117/12.839999
Show Author Affiliations
Wan Qin, Shenzhen Univ. (China)
Wenqi He, Shenzhen Univ. (China)


Published in SPIE Proceedings Vol. 7512:
2009 International Conference on Optical Instruments and Technology: Optoelectronic Information Security
Cunlin Zhang; Tiegen Liu, Editor(s)

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