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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.Publisher's Versio

Comment on “Encryption and decryption of images with chaotic map lattices” [Chaos 16, 033118 (2006)]