ARM-Embedded Implementation of a Novel Color Image Encryption and Transmission System Based on Optical Chaos

Abstract

Cloud servers are very suitable for sharing, and storing image data, and meanwhile it is confronted with many security, and privacy problems. Optical chaos, and hardware implementation of image encryption possess distinct superiorities in secret image sharing. Hence, combining the advantages of advanced reduced instruction set computer machine (ARM)-embedded platform Exynos4412 model, together with vertical-cavity surface emitting laser (VCSEL) subject to positive optoelectronic feedback (POEF), a novel color image encryption, and transmission system is experimentally realized, and appraised. We investigate the dynamic behaviors of the VCSEL, and obtain the chaotic output. An analog to digital conversion (ADC) module is utilized for optical chaos data acquisition. The improved gravity model, and the double sine map are exploited to encrypt the image, and the encrypted image is securely shared by cloud services. The user can download the encrypted image, and decrypt it by the hardware board. The experiment results reveal that the system has an excellent resistance to common attacks. Compared to the numerical simulation, our hardware implementation for such a color image encryption, and transmission system is formidable to actualize, but we successfully implemented, and tested in a real-world environment. By comparing experimental, and simulation results, the consistent results are found. Therefore, in the case of similar encryption effect, the user's information privacy protection in the actual industrial or commercial systems can be securely guaranteed on our hardware platform.

Keywords

• ARM-embedded implementation
• optical chaos
• VCSEL
• image encryption