Trustsim - A Simulator for Trust Relationships in Grid Systems

This report describes the use of Trustsim for simulation of trust- and reputation-based phenomena in small or large scale distributed systems. The trust mechanisms which can be simulated are incremental, in the sense that good behaviour is rewarded by a higher degree of trust and bad behaviour by a lower degree of trust. The program is easily extendable to allow investigation of various mechanisms which can depend on trust.