%0 Journal Article
%T Formulation of User-Role Assignment Rule
角色指派规则生成研究
%A YE Chun-Xiao
%A FU Yun-Qing
%A WU Zhong-Fu
%A
叶春晓
%A 符云清
%A 吴中福
%J 计算机科学
%D 2005
%I
%X In some environments,the number of users is not huge and the user-role assignment relations are not com- plex. User-role assignment in such environment is managed by system administrator. But in a distributed environ- ment which has huge number of users and complex and inconstant relations of user-role assignment, traditional URA of RBAC is inefficient. User-Role assignment rule emerged as a solution of automatically URA and a constraint condi- tion of role on user. User who satisfies such rules can be assigned to proper role. There has little work on the formu- lation of user-role assignment rules. According to the ways that roles gain permissions, this paper introduces two methods of formulation of user-role assignment rules. One of two methods concerns on the formulation of user-role assignment rules in the course of PRA, the other concerns on how to formulate user-role assignment rules in role hi- erarchy. Also, this paper has introduced how to modify user-role assignment rules in the course of PRA and role hier- archy.
%K RBAC
%K URA
%K User-role assignment rule
RBAC
%K URA
%K 角色指派规则
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=F873FE58D8588748&yid=2DD7160C83D0ACED&vid=9971A5E270697F23&iid=E158A972A605785F&sid=78F0EFE028BD3783&eid=A1266CF37D675CF1&journal_id=1002-137X&journal_name=计算机科学&referenced_num=0&reference_num=9