基于超混沌和DNA编码的计算鬼成像加密系统
首发时间:2020-05-14
摘要:随着计算鬼成像在军事,雷达和其他领域得到广泛使用,其安全性变得越来越重要。在本文中,首次提出了一种基于超混沌系统和DNA编码的计算鬼成像加密方案。首先,用一个4维超混沌系统生成四个长伪随机序列,然后通过DNA操作扩散这些序列获得相位掩码序列。最后,由相位掩码序列产生N个相位掩模矩阵。与现有的计算鬼成像加密方案相比,该方案对初始条件更敏感,具有更大的密钥空间,更高的复杂度以及更小的传输密钥,这使得加密方案更加安全。仿真结果和安全性分析证明了该方案具有良好性能。
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Protecting computational ghost imaging with hyper-chaotic system and DNA encoding
Abstract:As computation ghost imaging is widely used in military, radar, and other fields, its security became more and more important. In this paper, we propose a computational ghost imaging encryption scheme based on the hyper-chaotic system and DNA encoding for the first time. A 4-dimensional hyperchaotic system is used to generate four long pseudo-random sequences, then diffuse the sequences with DNA operation to get the phase mask sequence. At last N phase mask matrixes generated from the sequences. Compared with the existing computational ghost imaging encryption scheme, the proposed scheme has a bigger key space, more sensitivity to initial, more complexity, and smaller transmission key, which makes the encryption scheme more secure. Simulation results and security analysis demonstrate the good performance of the proposed scheme.
Keywords: computation ghost imaging image encryption chaos DNA encoding
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