%0 Journal Article
%T Research of Revoking Mechanism of Authorization in Secure Operating System<br>安全操作系统授权撤销机制的研究
%A WU Xin-Yong XIONG Guang-Ze
%A <br>吴新勇
%A 熊光泽
%J 计算机科学
%D 2003
%I 
%X Revoking operation is a very important component of access control. The lack of effective revoking operation impinges on supporting dynamic security policies in secure operation system. Analyzing authorization system,this paper presents a revoke policy which supports cascade and noncascade revocation. The policy adopts Hash authorization list and critical-based callback function to implement revocation of point to point and point to plane. Our experiments in security kernel show the mechanism is feasible,which provides the basis of further researching dynamic security policies in secure operation system.
%K Secure operating system
%K Access control
%K Authorization system
%K Revocation of permissions<br>安全操作系统
%K 授权撤销机制
%K 授权选项方式
%K 计算机系统
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=D41B48AA25B16055&yid=D43C4A19B2EE3C0A&vid=340AC2BF8E7AB4FD&iid=F3090AE9B60B7ED1&sid=CFAC5CB624A41AFD&eid=08805F9252973BA4&journal_id=1002-137X&journal_name=计算机科学&referenced_num=0&reference_num=12