1 October 2006 Cryptanalysis of an image encryption scheme
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We present cryptanalysis of an image encryption scheme, which is based on the base-switching (BS) lossless compression algorithm. The following conclusions are reached: 1. the size of the key space, i.e., the security against brute-force attacks, was greatly overestimated by the designers; and 2. the scheme is not secure against known/chosen-plaintext/ciphertext attacks. A real example is given to show the feasibility of a proposed chosen-plaintext attack. In addition, some other minor problems of the joint compression-encryption scheme are also pointed out.
© (2006) Society of Photo-Optical Instrumentation Engineers (SPIE)
Shujun Li, Shujun Li, Chengqing Li, Chengqing Li, Kwok-Tung Lo, Kwok-Tung Lo, Guanrong Chen, Guanrong Chen, } "Cryptanalysis of an image encryption scheme," Journal of Electronic Imaging 15(4), 043012 (1 October 2006). https://doi.org/10.1117/1.2360697 . Submission:

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