Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
527244 | Image and Vision Computing | 2009 | 5 Pages |
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 source.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Vision and Pattern Recognition
Authors
Chengqing Li, Shujun Li, Guanrong Chen, Wolfgang A. Halang,