摘要
为满足图像数据的实时传送和处理,设计并实现了一种快速图像加密算法.通过将置乱和扩散两个不相关的过程变为两个连续进行的扩散过程完成图像加密,提高了加密速度.利用Chebyshev映射完成第一次扩散,利用中国剩余定理完成第二次扩散.仿真实验表明,该算法在保证安全性的前提下,提高了加密和解密速度,适合图像的实时处理.
In order to satisfy the real-time transmission and processing of image data,a fast image encryption algorithm is designed and realized. The encryption speed is improved by changing two unrelated processes scrambling and diffusing,into two consecutive diffusion processes. Chebyshev mapping is used to complete diffusion for the first time,and the Chinese remainder theorem is used to complete the second one. Simulation experiment results show that the proposed algorithm can improve the speed of encryption and decryption on the premise of security guarantee and it is suitable for the real-time image processing.
出处
《沧州师范学院学报》
2016年第1期49-52,共4页
Journal of Cangzhou Normal University
