A New Pseudo-Random Generator Based on Two Chaotic Systems  

作　　者：Abderrahmene HADJ BRAHIM Hana ALI PACHA Mohammed NAIM Adda ALI PACHA 

机构地区：[1]LACOSI Laboratory,USTO-MB University,Oran 31000,Algeria [2]Quartz Laboratory,ECAM-EPMI,Cergy 95092,France

出　　处：《Journal of Systems Science and Information》2024年第6期775-789,共15页系统科学与信息学报(英文)

摘　　要：In many applications of information processing,such as cryptography,generating random sequences presents many difficulties.In this paper,a new pseudo-random sequence is proposed,based on two chaotic systems,a logistic map and a seven-dimensional(7D)hyperchaotic system.The main process of the proposed generator is that it functions by using the logistic map to control the 7D hyperchaotic system,which exhibits random behavior to produce a pseudo-random sequence.Specifically,the logistic map is used to select one of the variables from the 7D hyperchaotic system.The variable selected at each iteration is used as a controller to fill the pseudo-random sequence,choosing from one of the other variables of the 7D hyperchaotic system.This means that in each iteration,the pseudorandom sequence takes a value from the 7D hyperchaotic system according to the logistic map and the selected variable of the 7D hyperchaotic system.This method allows the creation of a highly efficient pseudo-random generator through simple processes.Experimental and analysis results show that the proposed generator has good random characteristics,making it suitable for cryptography applications such as encryption algorithms.

关 键 词：hyperchaotic system random generator pseudo-random sequence statistical tests 

分 类 号：O41[理学—理论物理]