一种新的P2P安全积分机制

A New Secure Incentive Mechanism in Peer-to-Peer System

在P2P网络中,大部分节点都不愿意主动地共享自身资源,这就产生了大量只享受资源而不共享资源的Free Rid-er。为了减少节点的这种自私行为,在更大程度上激励节点共享资源,并防止节点联合欺骗行为的发生,在密码学的基础上,提出了一种建立在积分值基础上的安全激励方案。通过实现一套安全的通信协议机制,本方案能够有效地保证积分值的准确性和真实性。在促使节点共享资源的同时,防止节点的抵赖和欺骗行为,对促进P2P网络中资源的共享有较好作用。

A lot of peers in the current P2P network would not share their resource actively,so that many peers in the system are free riders,which only use the resource of other peers but never share their own resource. In this thesis, a secure incentive mechanism based on peer＇ s contribution will be given. Based on cryptography, by establishing a security communication protocol, this mechanism could ensure the accuracy and reliability of integral value, and could not only urge peers to share their resource, but also effectively restrain the cheating behavior in the network.