Grid authorization graph

dc.contributor.author Kaiiali, Mustafa
dc.contributor.author Wankar, Rajeev
dc.contributor.author Rao, C. R.
dc.contributor.author Agarwal, Arun
dc.contributor.author Buyya, Rajkumar
dc.date.accessioned 2022-03-27T05:59:23Z
dc.date.available 2022-03-27T05:59:23Z
dc.date.issued 2013-06-11
dc.description.abstract The heterogeneous and dynamic nature of a grid environment demands a scalable authorization system. This brings out the need for a fast fine-grained access control mechanism for authorizing grid resources. Existing grid authorization systems adopt inefficient mechanisms for storing resources' security policies. This leads to a large number of repetitions in checking security rules. One of the efficient mechanisms that handle these repetitions is the Hierarchical Clustering Mechanism (HCM). HCM reduces the redundancy in checking security rules compared to the Brute Force Approach (BFA) as well as the Primitive Clustering Mechanism (PCM). Further enhancement is done to HCM to increase the scalability of the authorization process. However, HCM is not totally free of repetitions and cannot easily describe the OR-based security policies. A novel Grid Authorization Graph (GAG) is proposed to overcome HCM limitations. GAG introduces special types of edges named "Correspondence Edge"/"Discrepancy Edge" which can be used to entirely eliminate the redundancy and handle the cases where a set of security rules are mutually exclusive. Comparative studies are made in a simulated environment using the Grid Authorization Simulator (GAS) developed by the authors. It simulates the authorization process of the existing mechanisms like BFA, PCM, HCM and the proposed novel GAG. It also enables a comparative analysis to be done between these approaches. © 2013 Elsevier B.V. All rights reserved.
dc.identifier.citation Future Generation Computer Systems. v.29(8)
dc.identifier.issn 0167739X
dc.identifier.uri 10.1016/j.future.2013.04.010
dc.identifier.uri https://www.sciencedirect.com/science/article/abs/pii/S0167739X13000708
dc.identifier.uri https://dspace.uohyd.ac.in/handle/1/9027
dc.subject Access control
dc.subject Grid authorization
dc.subject Grid Authorization Graph
dc.subject Grid computing
dc.subject Hierarchical Clustering Mechanism
dc.title Grid authorization graph
dc.type Journal. Article
dspace.entity.type
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