期刊
OPTIK
卷 126, 期 20, 页码 2445-2452出版社
ELSEVIER GMBH
DOI: 10.1016/j.ijleo.2015.06.018
关键词
Finance system; Hyperchaos; Image encryption; Pseudo-random sequence
类别
资金
- 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
For the realization of chaos encryption in higher dimension and improving security, in this paper, a new four-dimensional hyperchaotic finance system based on a chaotic finance system is presented. The chaotic sequence is generated by using Runge-Kutta method, the key sequence is generated by chaotic sequence comparison. The key sequence is used for image encryption with relation to plaintext. The results of several analyses about histogram, randomness and information entropy of the encrypted image show that the new hyperchaotic system has high security and complexity. (C) 2015 Elsevier GmbH. All rights reserved.
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