Secure Reliable Multicast in a WAN

Authors: Dalia Malkhi. Micheal Merrit. Ohad Rodeh.

Secure Multicast in a WAN, by Dahlia Malkhi, Michael Merritt and Ohad Rodeh. The International Conference on Distributed Computing Systems (ICDCS 97), Baltimore, May 1997, pp. 87-94. abstract, Postscript

Abstract:

A secure reliable multicast protocol enables a process to send a message to a group of recipients such that all honest destinations receive the same message, despite the malicious efforts of fewer than a third of them, including the sender. This has been shown to be a useful tool in building secure distributed services, albeit with a cost that typically grows linearly with the size of the system. For very large networks, we present two approaches for bringing the cost down: First, we show a protocol whose cost is in the order of the number of tolerated failures. Secondly, we show how relaxing the consistency requirement to a selected probability level of guarantee can bring down the associated cost to a constant.

Postscript Version: ps.gz.


grishac@cs.huji.ac.il
Last modified: Mon Mar 30 17:44:16 IDT 1998