Cryptanalysis of an image encryption scheme based on a compound chaotic sequence

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 numbe...

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Bibliographic Details
Published inImage and vision computing Vol. 27; no. 8; pp. 1035 - 1039
Main Authors Li, Chengqing, Li, Shujun, Chen, Guanrong, Halang, Wolfgang A.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 02.07.2009
Subjects
Chaos
Chaos theory
Cryptanalysis
Differential chosen-plaintext attack
Encryption
Equivalence
Image encryption
Keys
Random numbers
Randomness test
Security
Vision
Chaos
Cryptanalysis
Image encryption
Differential chosen-plaintext attack
Randomness test
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Summary: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.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0262-8856
1872-8138
DOI:10.1016/j.imavis.2008.09.004