Cryptanalysis of an Image Encryption Scheme Based on a Compound Chaotic Sequence
Cryptography and Security
2009-12-21 v2 Multimedia
Abstract
Recently, an image encryption scheme based on a compound chaotic sequence was proposed. In this paper, the security of the scheme is studied and the following problems are found: (1) a differential chosen-plaintext attack can break the scheme with only three chosen plain-images; (2) there is a number of weak keys and some equivalent keys for encryption; (3) the scheme is not sensitive to the changes of plain-images; and (4) the compound chaotic sequence does not work as a good random number resource.
Keywords
Cite
@article{arxiv.0712.3964,
title = {Cryptanalysis of an Image Encryption Scheme Based on a Compound Chaotic Sequence},
author = {Chengqing Li and Shujun Li and Guanrong Chen and Wolfgang A. Halang},
journal= {arXiv preprint arXiv:0712.3964},
year = {2009}
}
Comments
11 pages, 2 figures