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Open AccessArticle

Pseudo-Random Number Generator Based on Logistic Chaotic System

Electronic Engineering College, Heilongjiang University, Harbin 150080, China
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Entropy 2019, 21(10), 960; https://doi.org/10.3390/e21100960
Received: 23 August 2019 / Revised: 18 September 2019 / Accepted: 27 September 2019 / Published: 30 September 2019
In recent years, a chaotic system is considered as an important pseudo-random source to pseudo-random number generators (PRNGs). This paper proposes a PRNG based on a modified logistic chaotic system. This chaotic system with fixed system parameters is convergent and its chaotic behavior is analyzed and proved. In order to improve the complexity and randomness of modified PRNGs, the chaotic system parameter denoted by floating point numbers generated by the chaotic system is confused and rearranged to increase its key space and reduce the possibility of an exhaustive attack. It is hard to speculate on the pseudo-random number by chaotic behavior because there is no statistical characteristics and infer the pseudo-random number generated by chaotic behavior. The system parameters of the next chaotic system are related to the chaotic values generated by the previous ones, which makes the PRNG generate enough results. By confusing and rearranging the output sequence, the system parameters of the previous time cannot be gotten from the next time which ensures the security. The analysis shows that the pseudo-random sequence generated by this method has perfect randomness, cryptographic properties and can pass the statistical tests. View Full-Text
Keywords: logistic chaotic system; PRNG; Pseudo-random number sequence logistic chaotic system; PRNG; Pseudo-random number sequence
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Wang, L.; Cheng, H. Pseudo-Random Number Generator Based on Logistic Chaotic System. Entropy 2019, 21, 960.

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