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METHOD FOR ILLEGAL PRIVILEGE FLOW PREVENTION AND MANDATORY ACCESS CONTROL USING THE STATE TRANSITION MODEL OF SECURITY ROLE IN WINDOW SYSTEM
METHOD FOR ILLEGAL PRIVILEGE FLOW PREVENTION AND MANDATORY ACCESS CONTROL USING THE STATE TRANSITION MODEL OF SECURITY ROLE IN WINDOW SYSTEM
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机译：窗口系统中安全角色状态转换模型的非法优先流量预防和强制访问控制方法
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摘要
A method and a system for blocking illegal right transfer and controlling access forcibly by using a security role state transition model of a Windows system are provided to control the access forcibly in a kernel level to prevent hacking and malicious system use by setting security property and applying a modified MLS(Multi-Level Security) policy to a user and a file system. A user security property setting part(101) sets up, modifies, and deletes user security property of a user security property database(107). A file system security property setting part(102) sets, modifies, and deletes file system security property of a file system security property database(109). A system call controller(103) intercepts a system call related to access control. A security role transition state setting/controlling part(104) forms a process security property table(108) by using the user security property database when the process related to the intercepted system call is generated. A security role access controller(105) determines permission, refuse, or comparison by comparing the security role states of the process and file system security property tables, and transfers an event determined by the comparison to a forcible access controller(106).
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