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Mathematical Problems in Engineering
Volume 2013, Article ID 537934, 7 pages
Research Article

A Parallel Encryption Algorithm Based on Piecewise Linear Chaotic Map

School of Computer Science and Technology, Harbin University of Science and Technology, Harbin 150080, China

Received 22 April 2013; Revised 28 July 2013; Accepted 28 July 2013

Academic Editor: Xiaojie Su

Copyright © 2013 Xizhong Wang and Deyun Chen. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We introduce a parallel chaos-based encryption algorithm for taking advantage of multicore processors. The chaotic cryptosystem is generated by the piecewise linear chaotic map (PWLCM). The parallel algorithm is designed with a master/slave communication model with the Message Passing Interface (MPI). The algorithm is suitable not only for multicore processors but also for the single-processor architecture. The experimental results show that the chaos-based cryptosystem possesses good statistical properties. The parallel algorithm provides much better performance than the serial ones and would be useful to apply in encryption/decryption file with large size or multimedia.