基于演化硬件的图像加密技术研究

摘要

A new technology of image encryption is proposed by combining evolvable hardware and cell automaton image encryption technology. The exact encryption rule can be mined by evolving the basic logic circuits, and then the reverse iteration encryption technology can be employed in image encryption and decryption. Evolvable hardware is used as a tool for searching the key and a logic circuit for the rule. It is not necessary to replace the hardware when the key changes. The reusability of hardware is improved, and the security of encryption has been strengthened as a result of the implementation of key dispersion. The feasibility and efficiency of the new technology has been confirmed in the experiments.%本文将演化硬件和细胞自动机图像加密相结合,提出了一种将演化硬件应用到图像加密中的新技术.通过对基本逻辑电路的演化找出正确的加密规则(搜索密钥),继而采用反向迭代加密技术对图像进行加密和解密.演化硬件既可以作为搜索密钥工具,也可以作为规则表的逻辑电路,密钥更换时不需要更换硬件,增加了硬件的重用性,而且实现了密钥分散,使加密安全性得到了增强.实验证实了该技术的可行性,取得了良好的加密效果.