摘要
基于LDC复合混沌的图像加密算法是通过利用Lorenz、Duffing2和Chens 3个三维混沌系统产生3个复合混沌系统来提高混沌系统的安全性的,并对3个混沌系统都进行了改进,使其产生的混沌序列具有0,1分布均匀和较好的图像直方图特性。虽然用LDC复合混沌加密的图像具有很好的安全性,但LDC混沌系统的密钥很长,为了解决复合混沌系统中的密钥在管理和传输过程中的安全问题,本文提出了一种基于LDC混沌理论与RSA的图像传输算法,采用安全性很高且不需要传输密钥的RSA加密算法对混沌密钥进行加密处理的方法。
This paper proposes a image transmission algorithm based on the RSA and the LDC composite chaos system that using three- dimensional chaotic systems of the Lorenz, Duffing2 and Chens generates three composite chaotic systems to enhance chaotic system＇s security. The three chaotic systems has improved in order to make the chaotic series with characteristics of 0, 1 uniform distribution and better image histogram. The image encrypted with LDC composite chaos system has an good security, but the key of the LDC chaos system is very long. In order to solve the security problem of the keys to the composite chaotic system in the management and transmission, this paper encrypts the keys to chaotic systems using the RSA encryption algorithm with high security.
出处
《计算机与数字工程》
2009年第2期102-104,116,共4页
Computer & Digital Engineering
