Automatic Analysis Technology of Kernel Vulnerability Attack Based on Finite State Machine by LIU Pei-wen, SHU Hui, LYU Xiao-shao, ZHAO Yun-tian

“…Kernel vulnerability attack is a common attack way for operating systems,and the analysis of each attack stage is the key to defend against such attacks.Due to the complexity and variety of kernel vulnerability types,trigger paths,and exploit modes,it is difficult to analyze the attack process of kernel vulnerability.Moreover,the existing analysis work mainly focuses on forward program analysis methods such as taint analysis,and the efficiency is low.In order to improve the analysis efficiency,this thesis implements an automatic analysis technology of kernel vulnerability attack based on finite state machine.Firstly,the state transition diagram of kernel vulnerability attack is constructed as the key basis for analysis.Secondly,the idea of reverse analysis is introduced,and a reverse analysis model of kernel vulnerability attack process based on finite state machine is established,which can reduce the unnecessary analysis cost.Finally,based on the model,a reverse analysis method of kernel vulnerability attack is implemented,which can automatically and quickly analyze the kernel vulnerability attack process.By testing 10 attack samples,the results show that the reverse analysis method can accurately obtain the key code execution information,and compared with the traditional forward analysis method,the analysis efficiency is greatly improved.…”
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Approach of Web Application Access Control Vulnerability Detection Based on State Deviation Analysis by MA Qican, WU Zehui, WANG Yunchao, WANG Xinlei

Subjects: “…web application|access control vulnerability|logic vulnerability|finite state machine…”
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Design and application of training simulation system for nuclear accident emergency drill by WU Qiang, TIAN Shujian, YANG Zihui, SUN Guomin, TAO Guihua, CHEN Weihu, WANG Shipeng

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Simulation of display and control interfaces for airborne multi-function fire control radar by WANG Xu-ming, JIANG Tao, CAO Jian, ZHOU Da-li

Subjects: “…airborne radar|integrated avionics system|display and control interface|flight simulation|finite state machine…”
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Driving risk assessment and prevention strategies for autonomous vehicle in open-pits by Zhifa CHEN, Guizhen YU, Chuanying ZHANG, Nenggen DING, Bin ZHOU, Zaiyou LI, Dongzhe OUYANG

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Joint Coding Design based on CSK and FSM by Jia-hui LI, Zong-yan LI, Shi-yin LI

“…The gain of 4 Combination Coding-Finite State Machine (CC-FSM) code is 2.1 dB compared with that of 4-CSK, and the gain of 8CC-FSM code is 1.7 dB compared with that of 8-CSK.…”
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Cause and Elimination Mechanism of Circularly Shift Range for the Multi-range Hydro-mechanical CVT by Yin Yuxin, Zhang Mingzhu, Hao Xiaoyang, Wang Tingting, Cui Mingming

“…To avoid the circularly shift range on multi-range hydro-mechanical continuously variable transmission（HMCVT）,taking the multi-range hydro-mechanical CVT of the wheel tractor of YTO-400 as example,the transmission characteristic of multi-range hydro-mechanical CVT is analyzed.The causes of the circularly shift range are researched,and eliminating mechanism is presented.The effectiveness of principle of averting the circularly shift range is simulated by using the theory of Finite State Machine,which employs the actual and theoretical displacement ratio,output speeds of multi-range hydro-mechanical CVT as the control parameter.The research results indicate that,the volumetric efficiency of the pump-motor system is the important reason for the factor of efficiency difference of the circularly shift range.By controlling the increase of the theory displacement ratio of the multi-range hydro-mechanical CVT,the actual displacement ratio is maintained at the same time,which effectively avoids the cycle change of the multi-range hydro-mechanical CVT.A theoretical foundation for the development of multi-range hydro-mechanical CVT control system is provided.…”
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