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Zhuosheng Lin; Simin Yu; Jinhu Lu; Shuting Cai; Guanrong Chen
IEEE transactions on circuits and systems for video technology, 2015-July, 2015-7-00, 20150701, Volume: 25, Issue: 7Journal Article
A systematic methodology is proposed for a chaotic map-based real-time video encryption and decryption system with advanced Reduced Instruction Set Computer machine (ARM)-embedded hardware implementation. According to the anticontrol principle of dynamical systems, first, an 8-D discretetime chaotic map-based system is constructed, which possesses the required property of 1-1 surjection in the integer range 0, N - 1, where N is the number of frame pixels, suitable for position scrambling of each video frame. Then, an 8-D discretetime hyperchaotic system is designed for encryption-decryption of red, green, and blue (RGB) tricolor pixel values. Using the ARM-embedded platform super4412 model with Cortex-A9 processor, together with the standard QT cross-platform, an integrated chaotic map-based real-time secure video communication system is designed, implemented, and evaluated. In addition, the security performance of the designed system is tested using criteria from the National Institute of Standards and Technology statistical test suite. The main feature of this method is that, both scrambling-antiscrambling of RGB tricolor pixel positions and encryption-decryption of pixel values are realized simultaneously for enhancing the security. As is well known, compared with numerical simulations, hardware implementation for such a secure video communication system is very difficult to achieve, but we successfully implemented and tested in a real-world network environment. Both theoretical analysis and experimental results validate the feasibility and real-time performance of the new secure video communication system.
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