Journal
TELECOMMUNICATION SYSTEMS
Volume 52, Issue 2, Pages 539-549Publisher
SPRINGER
DOI: 10.1007/s11235-011-9459-7
Keywords
Chaos; Cryptography; Cryptanalysis
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In this paper, we propose to enhance a recently proposed image cryptosystem based on hyper-chaos. The updated version has been builded to resist against attacks made to break the original one and to make it faster. The modification concerns the two Boxes, P-Box and S-Box, which composed the original cryptosystem. Compared with classical encryption schemes, AES and Triple-DES, the new version of the cipher shows a better performances in rapidity, in confusion and in the key sensitivity.
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