Multimedia Security: A Survey of Chaos-Based Encryption Technology
Zhaopin Su, Guofu Zhang, Jianguo Jiang · InTech eBooks · 2012
The main advantage of these encryptions lies in the observation that a chaotic signal looks like noise for non-authorized users ignoring the mechanism for generating it.Secondly, time evolution of the chaotic signal strongly depends on the initial conditions and the control parameters of the generating functions: slight variations in these quantities yield quite different time evolutions.In other words, this means that initial states and control parameters can be efficiently used as keys in an encryption system.What's more, generating of chaotic signal is often of low cost, which makes it suitable for the encryption of large bulky data (Alvarez & Li, 2006).Due to these recognized potential benefits, chaos-based multimedia encryption algorithms are of high interest up to now, and have made great progress (