TrustChord: Chord protocol based on the trust management mechanism

We introduce TrustChord, a novel chord protocol. TrustChord modifies the traditional chord protocol, using the trust certificate mechanism and the trust management mechanism. TrustChord can find and defense the common attacks from malicious nodes. It can find the malicious node´ attack behavior, and use the trust management mechanism to update and maintain the node´s trust value. Through the node´s trust value we can judge whether the node is malicious node or not. The trust management mechanism will remove the node whose trust value is lower than the threshold we set. Finally, TrustChord can make the chord network composed by good nodes.