• An efficient parallel pseudorandom bit generator based on an asymmetric coupled chaotic map lattice

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    • Keywords


      Coupled map lattice; spatiotemporal chaos; pseudorandom bit generator; parallel performance.

    • 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.

    • Author Affiliations


      Renfu Liang1 Xue Tan1 Hu Zhou1 Shihong Wang1

      1. School of Sciences, Beijing University of Posts and Telecommunications, Beijing 100876, China
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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