Nonlinear Sciences – Chaotic Dynamics
Scientific paper
2003-05-08
Nonlinear Sciences
Chaotic Dynamics
14 pages,3 figures
Scientific paper
Two-dimensional one-way coupled map lattices are used for cryptograph where multiple space units produce chaotic outputs in parallel. One of the outputs plays the role of driving for synchronization of the decryption system while the others perform the function of information encoding. With this separation of functions the receiver can establish a self-checking and self-correction mechanism, and enjoys the advantages of both synchronous and self-synchronizing schemes. A comparison between the present system with the system of Advanced Encryption Standard, AES, is presented in the aspect of channel noise influence. Numerical investigations show that our system is much stronger than AES against channel noise perturbations, and thus can be better used for secure communications with large noise channel exists in open channels, e.g., mobile-phone secure communications.
Hu Gang
Kuang Jinyu
Li Xiaowen
Lu Huaping
Tang Guoning
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