Note the new location for the seminar.

Thursday, February 12th 2004.
Room Packard 202

 Preserving Peer Replicas by Rate-Limited Sampled Voting


Petros Maniatis

Intel Research, Berkeley

About the talk:
The LOCKSS project has developed and deployed in a world-wide test a peer-to-peer system for preserving access to journals and other archival information published on the Web.  It consists of a large number of independent, low-cost, persistent web caches that cooperate to detect and repair damage to their content by voting in "opinion polls." Based on this experience, we present a design for and simulations of a novel protocol for voting in systems of this kind.  It incorporates rate limitation and intrusion detection to ensure that even some very powerful adversaries attacking over many years have only a small probability of causing irrecoverable damage before being detected.

About the speaker:
Petros Maniatis received his Ph.D. and M.Sc. degrees from Stanford University, and a B.Sc. degree in Informatics from the University of Athens, Greece.  His research interests focus on distributed systems security, fault tolerance, and
mobile computing.