Cryptanalysis of an Image Encryption Scheme Based on a Compound Chaotic Sequence

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.

11 pages, 2 figures

References in corpus (2)

• Cryptographic requirements for chaotic secure communications
• On the security defects of an image encryption scheme

Cited by in corpus (8)

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• Cryptanalysis of a Chaos-Based Fast Image Encryption Algorithm for Embedded Systems
• Breaking an image encryption algorithm based on chaos
• Breaking an image encryption scheme based on Arnold map and Lucas series
• Breaking a novel colour image encryption algorithm based on chaos
• Breaking a modified substitution-diffusion image cipher based on chaotic standard and logistic maps
• A Self-synchronized Image Encryption Scheme
• Breaking a new substitution-diffusion based image cipher using chaotic standard and logistic maps