%0 Journal Article
%T Research on Access Control Based on Source of Information Flow<br>基于信息流源的访问控制研究
%A LI Wei-nan
%A LI Han-chao
%A SHI Wen-chang
%A <br>李伟楠
%A 李翰超
%A 石文昌
%J 计算机科学
%D 2011
%I 
%X Due to the impact of information flow on system integrity, explored ways to enforce access control with consideration of information flow. Proposed a model for Access Control based on Source of Information Flow(ACSIE),in which, source of information flow refers to the entity that is a starting point of the flow. Source of information flow was expressed via set of users. Integrity level was described through sources of information flows. Dominance relationship of integrity levels was defined according to inclusion relationship of sets. Access control rules were constructed based on information flows. Integrity constrained subjects and constrained sets were introduced to improve adaptability of the model. Existing system information may be utilized effectively in implementing the model, hence, complexity of system configuration can be reduced,and system usability can be improved.
%K Access control
%K Information flow
%K Source of information flow
%K Usability<br>访问控制，信息流，信息流源，实用性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=8F1EB481FEC05BC41980F99FBF263C46&yid=9377ED8094509821&vid=16D8618C6164A3ED&iid=38B194292C032A66&sid=339D79302DF62549&eid=7C3A4C1EE6A45749&journal_id=1002-137X&journal_name=计算机科学&referenced_num=0&reference_num=20