Safe Distributed Trust Propagation Model

Trust network is a direct network which represents the trust of one person to the others, and it can be used to calculate trust propagation score. P2P network which lacks of central point and uses general global calculation of trust propagation is not good for the safety and the user privacy of P2P network which is based on trust. Aiming at the classic trust propagation scheme, this paper proposes a Safe Distributed Trust Propagation (SDTP) can protect user personal trust information and avoid delivering the trust information to irrelevant user while executing the distributed propagations.