Information Security Protocol Based System Identification with Binary-Valued Observations  

作　　者：XU Changbao ZHAO Yanlong ZHANG Ji-Feng 

机构地区：[1]Key Laboratory of Systems and Control, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190, China [2]School of Mathematical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China

出　　处：《Journal of Systems Science & Complexity》2018年第4期946-963,共18页系统科学与复杂性学报（英文版）

基　　金：supported by the National Key Basic Research Program of China(973 Program)under Grant No.2014CB845301;the National Natural Science Foundation of China under Grant No.61227902

摘　　要：Traditional control does not pay much attention to information security problems in system identification enough, which are important in practical applications. This paper focuses on the security problem of input information in a class of system identification problems with noise and binary-valued observations, presents a cryptography based security protocol, and improves it in the range of allowed errors. During solving the identification problem, the improved security protocol can ensure that the input information is not leaked, and thus, can deal with passive attacks effectively. Besides, a quantitative relationship among the input information, the public key in encryption and the number of partieipailts in the improved protocol is shown. Finally, the simulation results show that, the identification algorithm can still achieve the estimation accuracy by adding the improved security protocol. However, compared with the original identification algorithm, the time complexity of the algorithm with the improved security protocol increases.

关 键 词：CRYPTOGRAPHY identification algorithm information security passive attacks security protocol time complexity 

分 类 号：N945.14[自然科学总论—系统科学]