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A write abortion-based protocol in role-based access control systems

机译:基于角色的访问控制系统中基于写中止的协议

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In information systems, data in an object may illegally flow into another object if transactions manipulate the objects. In our previous studies, the read-abortion-based role-based synchronisation (RA-RBS) and object-based synchronisation (RA-OBS) protocols are discussed to prevent illegal information flow in the role-based access control (RBAC) model. Illegal read operations mean read operations which might imply illegal information flow. Here, transactions which issue illegal read operations are aborted. In this paper, we consider a unique object whose data is not allowed to flow to another object. An illegal write is defined to be a write operation which a transaction issues after reading a unique object or illegally reading an object. Each transaction reads objects but is aborted if the transaction illegally writes an object. Two types of write-abortion (WA)-based synchronisation protocols WA-RBS and WA-OBS are discussed based on abortions of transactions issuing illegal write operations. In the evaluation, the number of transactions aborted can be more reduced in the WA protocols than the RA protocols.
机译:在信息系统中,如果事务处理对象,则对象中的数据可能会非法流入另一个对象。在我们以前的研究中,讨论了基于读取堕胎的基于角色的同步(RA-RBS)和基于对象的同步(RA-OBS)协议,以防止基于角色的访问控制(RBAC)模型中的非法信息流。非法读取操作意味着可能意味着非法信息流的读取操作。在这里,发出非法读取操作的事务将中止。在本文中,我们考虑一个唯一的对象,该对象的数据不允许流到另一个对象。非法写入定义为在读取唯一对象或非法读取对象之后事务发出的写入操作。每个事务读取对象,但如果该事务非法写入对象,则中止。基于发布非法写入操作的事务中止,讨论了两种基于WA的同步协议WA-RBS和WA-OBS。在评估中,与RA协议相比,WA协议中中止的事务数量可以减少更多。

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