Nonlinear joint transform correlator architectures for images encryption, decryption and authentication systems

Juan M. Vilardy; María S. Millán; Elisabet Pérez-Cabré

doi:10.1117/12.2276425

22 August 2017 Nonlinear joint transform correlator architectures for images encryption, decryption and authentication systems

Juan M. Vilardy, María S. Millán, Elisabet Pérez-Cabré

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Proceedings Volume 10453, Third International Conference on Applications of Optics and Photonics; 1045336 (2017) https://doi.org/10.1117/12.2276425
Event: Third International Conference on Applications of Optics and Photonics, 2017, Faro, Portugal

Abstract

We present several joint transform correlator (JTC) architectures for nonlinear images encryption, decryption and authentication systems. These JTC architectures are developed in different processing domains, such as Fourier, Fractional Fourier, Fresnel and Gyrator domains. Some of these processing domains can add new security keys in order to improve the security of the images encryption, decryption and authentication systems. In this work, we review and present recent nonlinear modifications of encryption decryption and authentication systems based on JTC architecture that allow to significantly increase the quality of the retrieved image after information decryption, and to achieve a high security level against a variety of system attacks.

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Juan M. Vilardy, María S. Millán, and Elisabet Pérez-Cabré "Nonlinear joint transform correlator architectures for images encryption, decryption and authentication systems", Proc. SPIE 10453, Third International Conference on Applications of Optics and Photonics, 1045336 (22 August 2017); https://doi.org/10.1117/12.2276425

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KEYWORDS

Complex systems

Computer security

Image encryption

Joint transforms

Optical correlators

Gyrators

Fourier optics

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