title: Comment on "Encryption and decryption of images with chaotic map lattices" [Chaos 16, 033118 (2006)].
abstract: In this paper, we comment on the chaotic encryption algorithm proposed by A. N. Pisarchik et al. [Chaos 16, 033118 (2006)]. We demonstrate that the algorithm is not invertible. We suggest simple modifications that can remedy some of the problems we identified.
authors.affiliation: Department of Computer Science and Engineering, Isik University, Istanbul TR 34980, Turkey. ercan@isikun.edu.tr
authors.forename: Ercan
authors.initials: E
authors.lastname: Solak
authors.forename: Cahit
authors.initials: C
authors.lastname: Cokal
mesh_terms: D000465:Algorithms; D016494:Computer Security; D003198:Computer Simulation; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D016247:Information Storage and Retrieval / Q000379:methods*; D008962:Models, Theoretical; D017711:Nonlinear Dynamics; D012815:Signal Processing, Computer-Assisted