Abstract:
In distributed database systems, controlling usage of data after it had been released to a different control domain from its provider becomes an important security issue. Aiming at this problem, this paper analyses the characteristics of Role-based Access Control model(RBAC) and Usage Control model(UCON), and proposes a novel secure model of distributed database based on usage control technology. It gives the composition and definition by using different access control policies on server-side and client-side. Analysis result shows that this model can be used as an effective solution for usage control enforcement in distributed database systems.
Key words:
distributed database,
access control,
usage control,
mutability,
continuity
摘要： 针对分布式数据库系统中已发布数据难以控制的问题，结合基于角色访问控制模型(RBAC)和使用控制模型(UCON)的特点，提出一种基于UCON的分布式数据库安全模型。将分布式数据库分为服务器端和客户端，服务器端采用UCON策略，客户端采用RBAC策略。分析结果表明，该模型能有效控制分布式数据库系统中的数据。
关键词:
分布式数据库,
访问控制,
使用控制,
易变性,
持续性
CLC Number:
DI Zhi-Gang, WANG Jian-Dong. Secure Model of Distributed Database Based on UCON[J]. Computer Engineering, 2011, 37(24): 50-51.
翟志刚, 王建东. 基于UCON的分布式数据库安全模型[J]. 计算机工程, 2011, 37(24): 50-51.