A routing mechanism based on trust relationship for P2P networks

The traditional P2P routing algorithms generally don´t consider the routing security. This paper proposes a new trusted routing mechanism based on trust degree for P2P network. The assessment and calculation of trust degree is the key to achieve the secure routing mechanism. In this paper, an improved method to define trust degree is presented. And then, we present the improved trusted routing mechanism based on trust degree. At end of this paper, some simulations and analysis for network problems, such as bad mouthing attacks, self-faults problems and conflict behavior attacks, show that this scheme is helpful to detect which node is more reliable and make honest nodes play a more important part in the network, and make malicious nodes to the edge of network. This study can increase the communication efficiency and improves the survivability of P2P network.