PUBLISHING DOCUMENTS WITH RESPECT TO ROLES SECURITY
Author(s):
Rashmi D. Rahane, Sayali S. Digholkar, Amruta P. Panghavane, Pooja U. Amrutkar
Keywords:
Content-based, publish/subscribe, peer-to peer, broker-less, security, identity-based encryption.
Abstract
The security mechanisms such as authentication and confidentiality is highly challenging in a content based publish/subscribe system. Authentication of publishers and subscribers is difficult to achieve due to the loose coupling of publishers and subscribers. Confidentiality of events and subscriptions conicts with content-based routing. This paper presents a novel approach to provide confidentiality and authentication in a broker-less content-based publish/subscribe system as well as the provision of monitoring the activities of attackers. The authentication of publishers and subscribers as well as confidentiality of events is ensured by adapting the pairing-based cryptography mechanisms, to the needs of a publish/subscribe system. Furthermore, an algorithm to cluster subscribers according to their subscriptions preserves a weak notion of subscription confidentiality. In addition to our previous work [5], this paper contributes 1) use of searchable encryption to enable efficient routing of encrypted events, 2) multi- credential routing a new event dissemination strategy to strengthen the weak subscription confidentiality, and 3) thorough analysis of different attacks on subscription confidentiality. The overall approach provides fine-grained key management and the cost for encryption, decryption, and routing is in the order of subscribed attributes. Moreover, the evaluations show that providing security is afforordable w.r.t. 1) throughput of the proposed cryptographic primitives, and 2) delays incurred during the construction of the publish/subscribe overlay and the event dissemination.
Article Details
Unique Paper ID: 143593

Publication Volume & Issue: Volume 2, Issue 12

Page(s): 352 - 355
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