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摘要


This paper presents a new pseudo random bit generator based on a modified Gingerbreadman chaotic system, The new model has been well studied to avoid fixed and periodic points. We have verified that the system's Lyapunov exponent is positive, which means the system is a chaotic one. The randomness of the bits generated by the proposed generator is successfully tested by the NIST. We notice that during the execution of the algorithm, the password changes automatically after a number of iterations.

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