@conference {18690, title = {Quantifying the cost of providing intrusion tolerance in group communication systems}, year = {2002}, month = {2002///}, pages = {229 - 238}, abstract = {Group communication systems that provide consistent group membership and reliable, ordered multicast properties in the presence of faults resulting from malicious intrusions have not been analyzed extensively to quantify the cost of tolerating these intrusions. This paper attempts to quantify this cost by presenting results from an experimental evaluation of three new intrusion-tolerant microprotocols that have been added to an existing crash-fault-tolerant group communication system. The results are analyzed to identify the parts that contribute the most overhead during provision of intrusion tolerance at the group communication system level.}, keywords = {consistent group membership, crash-fault-tolerant group communication system, cryptography, finite state machines, groupware, intrusion-tolerant microprotocols, malicious intrusions, multicast communication, reliable ordered multicast properties, security of data, Transport protocols}, doi = {10.1109/DSN.2002.1028904}, author = {Ramasamy,H. V. and Pandey,P. and Lyons,J. and Michel Cukier and Sanders,W. H.} }