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Secure and Efficient Pseudorandom Bit Generator for Chaotic Stream Ciphers |
| WANG Xiao-Min;ZHANG Jia-Shu |
| Key Lab of Signal and Information Processing, Southwest Jiaotong University, Chengdu 610031 |
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| Cite this article: |
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WANG Xiao-Min, ZHANG Jia-Shu 2007 Chin. Phys. Lett. 24 1166-1169 |
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Abstract Based on the entropy criterion and n-dimensional uniform distribution of nonlinear digital filter (NDF), we present an efficient NDF-based seudorandom bit generator (NDF-PRBG) for chaotic stream ciphers. The cryptographic properties of the proposed NDF-PRBG are analysed, and some experiments are made. The results show that it has desirable cryptographic properties, and can be used to construct secure stream ciphers with high speed.
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| Keywords:
05.45.-a
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Received: 02 February 2007
Published: 23 April 2007
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| PACS: |
05.45.-a
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(Nonlinear dynamics and chaos)
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