计算机工程2011，Vol.37Issue(9)：173-175,3.DOI:10.3969/j.issn.1000-3428.2011.09.060
外包数据库的安全访问控制机制
Security Access Control Mechanism of Outsourced Database
摘要
Abstract
Through the analysis of outsourced database two layer encryption scheme, its security flaw is pointed out, that is, authorized users can easy authorized other non-authorized user to access to resource. An improved scheme that can derive the encryption key by using linear equation in two unknowns is proposed. To adapt to access policy changes avoiding re-encryption for the data owner, this scheme exploits a two layer encryption scheme to prevent non-anthorized users to access resource. Analysis shows that this scheme not only can overcome the flaws of the original program but also adapt to dynamic changes. It is a safe and efficient access control scheme.关键词
外包数据库/访问控制/数据加密/密钥管理/隐私保护Key words
outsourced database/ access control/ data encryption/ key management/ privacy preservation分类
信息技术与安全科学引用本文复制引用
麻浩,王晓明..外包数据库的安全访问控制机制[J].计算机工程,2011,37(9):173-175,3.基金项目
国家自然科学基金资助项目(61070164) （61070164）
广东省自然科学基金资助项目(8151063201000022) （8151063201000022）
广东省科技计划基金资助项目(2010B010600025) （2010B010600025）
