基于物联网中传输层图像信息加密及压缩的算法探讨

Algorithm of Image Information Encryption and Compression Based on Transmission Layer in Internet of Things

图像信息安全问题涉及到国家安全、社会公共安全,也是推动互联网健康发展的绊脚石。基于此,在原有的正方形图像二维加密方法的基础上,结合二维混沌映射的图像增补加密算法原理,提出了一种适用于长方形图像加密的混沌加密算法并进行仿真模拟。结果表明:加密后的图像具有良好的像素分布和较高的抗击敏感性,为多媒体图像通信安全提供技术支撑。

Image information security involves in both the national security and the social public safety,and it is also a stumbling block to promote the healthy development of the Internet.Based on the advantages and disadvantages of the original two-dimensional encryption method of square images and the principle of two-dimensional chaotic map-based image supplemental encryption algorithm,this paper proposes a chaotic encryption algorithm suitable for rectangular image encryption and simulates it.The results show that the encrypted image has good pixel distributioand and high resistance to attack.It provides technical support for multimedia image communication security.