Paper
13 November 2014 Optical image encryption in phase space
Jun Liu, Xiaobin Xu, Guohai Situ, Quanying Wu
Author Affiliations +
Abstract
In the field of optical information security, the research of double random phase encoding is becoming deeper with each passing day, however the encryption system is linear, and the dependencies between plaintext and ciphertext is not complicated, with leaving a great hidden danger to the security of the encryption system. In this paper, we encrypted the higher dimensional Wigner distribution function of low dimensional plaintext by using the bilinear property of Wigner distribution function. Computer simulation results show that this method can not only enlarge the key space, but also break through the linear characteristic of the traditional optical encryption technology. So it can significantly improve the safety of the encryption system.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jun Liu, Xiaobin Xu, Guohai Situ, and Quanying Wu "Optical image encryption in phase space", Proc. SPIE 9276, Optical Metrology and Inspection for Industrial Applications III, 92761N (13 November 2014); https://doi.org/10.1117/12.2071466
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KEYWORDS
Computer security

Computer programming

Optical image encryption

Image encryption

Fourier transforms

Cryptanalysis

Wigner distribution functions

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