Random number generator design using continuous-time chaos

Author(s):  
Koray Ozdemir ◽  
Selcuk Kilinc ◽  
Serdar Ozoguz
2001 ◽  
Vol 11 (1) ◽  
pp. 617-620 ◽  
Author(s):  
X. Zhou ◽  
S. Xu ◽  
P. Rott ◽  
C.A. Mancini ◽  
M.J. Feldman

2020 ◽  
Vol 26 (1) ◽  
pp. 52-57 ◽  
Author(s):  
Fatih Ozkaynak

One of the practical applications of chaotic systems is the design of a random number generator. In the literature, generally random number generators are designed using discrete time chaotic systems. The reason for the use of the discrete time chaotic systems in the design architecture is that the latter have a simpler structure than the continuous time chaotic systems. In order to observe chaos in continuous time systems, the system must have at least three degrees. It is shown that for fractional order chaotic systems chaos can be observed even in a lower system degree. The aim of this study is to develop a random number generator using a fractional order chaotic Chua system. The proposed generator is analysed using various randomness tests. The analysis results show that the proposed generator passes the random requirements successfully. On the one hand, this study is important because it demonstrates the practical application of fractional order chaotic systems. On the other hand, it provides an alternative to designs based on discrete time chaotic systems.


2020 ◽  
Vol 28 (7) ◽  
pp. 1740-1744
Author(s):  
Srisubha Kalanadhabhatta ◽  
Deepak Kumar ◽  
Kiran Kumar Anumandla ◽  
S. Ashish Reddy ◽  
Amit Acharyya

Author(s):  
Zehra Gulru Cam Taskiran ◽  
Murat Taşkıran ◽  
Mehmet Kıllıoğlu ◽  
Nihan Kahraman ◽  
Herman Sedef

Purpose In this work, a true random number generator is designed by sampling the double-scroll analog continuous-time chaotic circuit signals. Methodology A Chua circuit based on memristance simulator is designed to obtain a non-linear term for a chaotic dynamic system. It is implemented on the board by using commercially available integrated circuits and passive elements. A low precision ADC which is commonly found in the market is used to sample the chaotic signals. The mathematical analysis of the chaotic circuit is verified by experimental results. Originality It is aimed to be one of the pioneering studies (including low precision ADC) in the literature on the implementation of memristive chaotic random number generators. Findings Two new methods are proposed for post-processing and creating random bit array using XOR operator and J-K flip flop. The bit stream obtained by a full-hardware implementation successfully passed the NIST-800-22 test. In this respect, the availability of the memristance simulator circuit, memristive chaotic double-scroll attractor, proposed random bit algorithm and the randomness of the memristive analog continuous-time chaotic true number generator were also verified.


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