Research Article
Access Rule Consistency in Cooperative Data Access Environment
@INPROCEEDINGS{10.4108/icst.collaboratecom.2012.250467, author={Meixing Le and Krishna Kant and Sushil Jajodia}, title={Access Rule Consistency in Cooperative Data Access Environment}, proceedings={8th IEEE International Conference on Collaborative Computing: Networking, Applications and Worksharing}, publisher={IEEE}, proceedings_a={COLLABORATECOM}, year={2012}, month={12}, keywords={access rule consistency cooperative data access join path}, doi={10.4108/icst.collaboratecom.2012.250467} }- Meixing Le
Krishna Kant
Sushil Jajodia
Year: 2012
Access Rule Consistency in Cooperative Data Access Environment
COLLABORATECOM
ICST
DOI: 10.4108/icst.collaboratecom.2012.250467
Abstract
In this paper we consider the situation where a set of enterprises need to collaborate to provide rich services to their clients. Such collaboration often requires controlled access to each other's data, which we assume is stored in standard relational form. The access control is provided by a set of access rules that may be defined over the joins of various relations. In this paper we introduce the notion of consistency of access rules and devise an algorithm to ensure consistency. We also consider the possibility of occasional changes in access rules and address the problem of maintaining consistency in the face of such changes. We propose algorithms for both changes with new privileges grants and revocations on existing privileges.