计算机工程与科学2017，Vol.39Issue(8)：1457-1464,8.DOI:10.3969/j.issn.1007-130X.2017.08.011
基于访问控制和中国剩余定理的数据库密钥管理方案的研究
Key management schemes based on access control and Chinese remainder theorem in database
摘要
Abstract
Since the number of data items keys is larger,much higher security is needed in database encryption systems.In view of this question,we propose new key management schemes based on access control and Chinese remainder theorem which makes the management of data items keys convenient.A large number of the data items keys Ki which the user ui has access to,can be compounded to user class keys uki when the user applies for the key,then this key is saved.When the user decrypts the data,user class keys uki are broken down into key data items using the system tables and the Chinese remainder theorem.The schemes can solve the problems of high time cost on processing data and more system resources occupation,thus improving the efficiency and security of the key management in the cipher text database.Experiments and comparison prove the significant improvement in efficiency and security of key management.关键词
数据库加密/角色访问控制/中国剩余定理/密钥管理Key words
database encryption/RBAC/Chinese remainder theorem/key management分类
信息技术与安全科学引用本文复制引用
闫玺玺,胡前伟,汤永利,叶青,李子臣..基于访问控制和中国剩余定理的数据库密钥管理方案的研究[J].计算机工程与科学,2017,39(8):1457-1464,8.基金项目
国家自然科学基金(61300216,61272519) （61300216,61272519）
河南省科技攻关项目(132102210123) （132102210123）
河南理工大学博士基金(B2013-043) （B2013-043）
