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- Title
An efficient parallel pseudorandom bit generator based on an asymmetric coupled chaotic map lattice.
- Authors
LIANG, RENFU; TAN, XUE; ZHOU, HU; WANG, SHIHONG
- Abstract
In this paper, an asymmetric coupled map lattice (CML) combining sawtooth map as a local map is presented and its chaotic behaviours are analysed. Based on this asymmetric CML, a pseudorandom bit generator (PRBG) is proposed. The specific parameters of the system that make complicated floating-point computation and multiplication computation transform into simple shift bit operations are adopted. That not only ensures the nonlinear operations, but also increases the performance efficiency. The PRBG is implemented in software and hardware. The parallel output bit sequences pass all of the NIST SP800-22 statistical tests.
- Subjects
SYMMETRY (Physics); PSEUDONOISE sequences (Digital communications); CHAOS theory; LATTICE field theory; PARAMETER estimation; NONLINEAR operator equations
- Publication
Pramana: Journal of Physics, 2015, Vol 85, Issue 4, p617
- ISSN
0304-4289
- Publication type
Article
- DOI
10.1007/s12043-014-0905-4