@inproceedings{acaa7af6f95d40939ef326e38ef13d97,
title = "Data protection in distributed database systems",
abstract = "In this paper, we propose an authorization model for distributed databases. Multiple object granularity of authorizations, such as global relations, fragments and attributes, are supported. Administrative privilege can be delegated from one subject to another to provide decentralized authorization administration. Authorization propagations along both the relation fragmentation tree and the subject group-subgroup hierarchical tree are also considered. Further more, conflict resolution policy is provided that supports well controlled delegations and exceptions. Overall the system provides a very flexible framework for specifying and evaluating the authorizations in distributed database systems.",
keywords = "Authorization, Distributed database",
author = "Chun Ruan and Vijay Varadharajan",
year = "2005",
language = "English",
isbn = "3540258787",
volume = "3488 LNAI",
series = "Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)",
publisher = "Springer, Springer Nature",
pages = "191--199",
editor = "Mohand-Sa{\"i}d Hacid and Murray, {Neil V.} and Ras, {Zbigniew W.} and Shusaku Tsumoto",
booktitle = "Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)",
address = "United States",
note = "15th International Symposium on Methodologies for Intelligent Systems, ISMIS 2005 ; Conference date: 25-05-2005 Through 28-05-2005",
}