Efficient security mechanisms for overlay multicast-based content distribution

Sencun Zhu, Chao Yao, Donggang Liu, Sanjeev Setia, Sushil Jajodia

Research output: Contribution to journalConference articlepeer-review

4 Scopus citations


This paper studies the security issues that arise in an overlay multicast architecture where service providers distribute content such as web pages, static and streaming multimedia data, realtime stock quotes, or security updates to a large number of users. In particular, two major security problems of overlay multicast, network access control and group key management, are addressed. We first present a bandwidth-efficient scheme, called CRBR, that seamlessly integrates network access control and group key management. Next we propose a DoS-resilient key distribution scheme, called k-RIP, that delivers updated keys to a large fraction of nodes with high probability even if an attacker can selectively compromise nodes in the multicast data delivery hierarchy and command these compromised nodes to drop keying packets. The proposed schemes do not rely on knowledge of overlay topology, and can scale up to very large overlay networks.

Original languageEnglish (US)
Pages (from-to)40-55
Number of pages16
JournalLecture Notes in Computer Science
StatePublished - 2005
EventThird International Conference on Applied Cryptography and Network Security, ACNS 2005 - New York, NY, United States
Duration: Jun 7 2005Jun 10 2005

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • General Computer Science


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