Journal
OPTICS AND LASERS IN ENGINEERING
Volume 90, Issue -, Pages 254-274Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.optlaseng.2016.10.025
Keywords
Image encryption and compression; IWT; SSPIHT; Hyper-chaotic system; Inverse operation
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Funding
- National Natural Science Foundation of China [60973162]
- Natural Science Foundation of Shandong Province of China [ZR2014FM026, ZR2009GM037]
- Science and Technology of Shandong Province, China [2013GGX10129, 2010GGX10132, 2012GGX10110]
- National Cryptology Development Foundation of China [MMJJ201301006]
- Foundation of Science and Technology on Information Assurance Laboratory [KJ-14-005]
- Engineering Technology and Research Center of Weihai Information Security
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A joint lossless image encryption and compression scheme based on integer wavelet transform (IWT) and set partitioning in hierarchical trees (SPIHT) is proposed to achieve lossless image encryption and compression simultaneously. Making use of the properties of IWT and SPIHT, encryption and compression are combined. Moreover, the proposed secure set partitioning in hierarchical trees (SSPIHT) via the addition of encryption in the SPIHT coding process has no effect on compression performance. A hyper-chaotic system, nonlinear inverse operation, Secure Hash Algorithm-256(SHA-256), and plaintext-based keystream are all used to enhance the security. The test results indicate that the proposed methods have high security and good lossless compression performance.
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