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Register a new userCryptanalysis of an Image Encryption Scheme Based on a Compound Chaotic Sequence
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Added by
Chengqing Li
Publication date
2007
fields
Informatics Engineering
and research's language is
English
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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.
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