%0 Journal Article %T A Key-Lock Access Control %A Huang Guoxiang %A Liu Jian %J 计算机科学技术学报 %D 1987 %I %X Access control is one of the serious problems in modern information systems.In this paperwe suggest a key-lock strategy to represent the privilege relationship involving lineartransformations and nonlinear constraints.The implementation shows that this strategy hasgot the properties of security,and information hidden,and satisfies the least privilege principle,This distributed management of sensitive data adapts the distributed systems well. %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=F57FEF5FAEE544283F43708D560ABF1B&aid=8F121864D5056D99FD09FA51DCFA4F54&yid=9C2DB0A0D5ABE6F8&vid=0B39A22176CE99FB&iid=38B194292C032A66&sid=FBCA02DBD05BD4EA&eid=B78CD622C1934236&journal_id=1000-9000&journal_name=计算机科学技术学报&referenced_num=0&reference_num=0