期刊
EXPERT SYSTEMS WITH APPLICATIONS
卷 39, 期 16, 页码 12626-12635出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eswa.2012.05.020
关键词
Cellular automata; Encryption; Cryptography; Randomness
类别
资金
- FAPESP (The State of Sao Paulo Research Foundation, Brazil) [2011/05461-0]
- CNPq (National Council for Scientific and Technological Development, Brazil) [308449/2010-0, 473893/2010-0]
- FAPESP (The State of Sao Paulo Research Foundation) [2011/01523-1]
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [11/05461-0, 11/01523-1] Funding Source: FAPESP
A chaotic encryption algorithm is proposed based on the Life-like cellular automata (CA), which acts as a pseudo-random generator (PRNG). The paper main focus is to use chaos theory to cryptography. Thus, CA was explored to look for this chaos property. This way, the manuscript is more concerning on tests like: Lyapunov exponent, Entropy and Hamming distance to measure the chaos in CA, as well as statistic analysis like DIEHARD and ENT suites. Our results achieved higher randomness quality than others ciphers in literature. These results reinforce the supposition of a strong relationship between chaos and the randomness quality. Thus, the chaos property of CA is a good reason to be employed in cryptography, furthermore, for its simplicity, low cost of implementation and respectable encryption power. (C) 2012 Elsevier Ltd. All rights reserved.
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