Title :
A Novel Digital Image Encryption Algorithm Based on Hyperchaos by Controlling Lorenz System
Author :
Peng, Jun ; Jin, Shangzhu ; Liao, Xiaofeng
Author_Institution :
Coll. of Electron. Inf. Eng., Chongqing Univ. of Sci. & Technol., Chongqing, China
Abstract :
This paper presents a new image encryption algorithm based on a four-dimensional (4D) continuous-time autonomous hyperchaotic Lorenz system by introducing a simple state feedback controller. The proposed algorithm is described in detail, along with the security analyses including sensitivity analysis, information entropy analysis and differential attack analysis. The results show that the suggested algorithm has some properties desirable in a good security cryptosystem.
Keywords :
continuous time systems; control engineering computing; cryptography; nonlinear control systems; sensitivity analysis; state feedback; 4D continuous-time autonomous hyperchaotic Lorenz system; differential attack analysis; digital image encryption algorithm; hyperchaos; information entropy analysis; security analyses; security cryptosystem; sensitivity analysis; state feedback controller; Algorithm design and analysis; Chaotic communication; Control systems; Cryptography; Digital images; Equations; Image analysis; Information analysis; Information security; Performance analysis; Hyperchaotic Lorenz system; Image encryption; Information security;
Conference_Titel :
Natural Computation, 2009. ICNC '09. Fifth International Conference on
Conference_Location :
Tianjin
Print_ISBN :
978-0-7695-3736-8
DOI :
10.1109/ICNC.2009.313
