%0 Journal Article
%T Research on Security Mechanisms of Outsourced Database<br>外包数据库系统安全机制研究
%A ZHU Qin
%A YU Shou-Jian
%A LE Jia-Jin
%A LUO Yi-Shu
%A <br>朱勤
%A 于守健
%A 乐嘉锦
%A 骆轶姝
%J 计算机科学
%D 2007
%I 
%X In the outsourced database model, organizations outsource their data management needs to an external service provider. The service provider offers mechanisms to create, store, update and query the database for the organizations. Since a server is almost never fully trusted, this model introduces several research issues related to data security. This paper discusses the classification of database security system, studies the architecture of outsourced database, overviews the state-of-the-art in database encryption, query policy of encrypted database, privacy protection, data integrity verification, and database copyright protection based on database watermarking, introduces the latest progress in security mechanisms of outsourced database, and looks ahead its future development. A conclusion is drawn at the end of this paper that it is critical to integrate various security mechanisms and trade off the security and the availability to build an outsourced database.
%K Outsourced database
%K Database security
%K Database encryption
%K Data integrity
%K Database watermarking<br>外包数据库
%K 数据库安全
%K 数据库加密
%K 数据完整性
%K 数据库水印
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=518F09E9728F0591ECFE843B2712AECE&yid=A732AF04DDA03BB3&vid=339D79302DF62549&iid=0B39A22176CE99FB&sid=04445C1D2BDA24EE&eid=3F0AF5EDBC960DB0&journal_id=1002-137X&journal_name=计算机科学&referenced_num=5&reference_num=33