A Fast Digital Chaotic Generator for Secure Communication
Resource
International Journal of Bifurcation and Chaos, 20(12), 3969-3987
Journal
International Journal of Bifurcation and Chaos
Pages
3969-3987
Date Issued
2010
Date
2010
Author(s)
Chen, Shih-Liang
Hwang, Tingting
Chang, Shu-Ming
Lin, Wen-Wei
Abstract
In this paper, we propose a digitalized chaotic map, Variational Logistic Map (VLM), modified from classical logistic map to be used in secure communication. Compared with classical logistic map, VLM has large parameter space without windows and can be implemented at low hardware cost. Referring to statistical testing suites SP800-22 and TestU01, VLM with the proposed scrambling method can significantly improve the output complexity as compared with other logistic-map based generators and piecewise linear chaotic map. Experiments show that the throughput of a 32-bit VLM is up to 3200 Mbps in 0.18 μm process. Furthermore, a chaotic crypto scheme, Multi-VLM (MVLM), constructed by four 32-bit VLMs can generate an output sequence with a minimal length equal to 2 128 -1 by a 128-bit external key.
Type
journal article
File(s)![Thumbnail Image]()
Loading...
Name
83.pdf
Size
23.43 KB
Format
Adobe PDF
Checksum
(MD5):e49579718eaff4c183d6afccf2836625