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

Volume

1

fYear

2009

fDate

14-16 Aug. 2009

Firstpage

395

Lastpage

399

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Natural Computation, 2009. ICNC '09. Fifth International Conference on

Conference_Location

Tianjin

Print_ISBN

978-0-7695-3736-8

Type

conf

DOI

10.1109/ICNC.2009.313

Filename

5365538