Key Independent Retrieval of Chaotic Encrypted Images

  • Ram Ratan
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5909)


A chaotic image encryption algorithm based on circular shift functions proposed for high security is analysed in this paper for retrieving encrypted images. Proposed retrieval scheme is key independent and based on divide and conquer attack where neighbourhood similarity characteristic of images is applied. The simulation results show that retrieved images have very good visual perception quality and are as similar as original images. The analysis indicates that above algorithm in present form is insecure and encrypted images can be retrieved efficiently.


Image Secrecy Chaotic Image Encryption Circular Shift Function Image Decryption Divide and Conquer Attack Neighbourhood Similarity 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Ram Ratan
    • 1
  1. 1.Defence Research and Development OrganisationScientific Analysis GroupDelhiIndia

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