摘要
提出了一种适用于P2P环境的乐观公平交换协议。针对P2P网络的特点,该协议采用分布式的临时节点集替代传统公平交换协议中的可信第三方,可以有效降低对第三方信任度和信道可靠性的依赖。在保证临时节点集中超过2/3节点为诚实节点的条件下,协议可以提供完全的公平性和安全性保障。
According to the characteristics of P2P network, an optimistic fair exchange protocol was proposed, which was suitable for P2P network. Trusted Third Party （TIP） in traditional fair exchange protocols was substituted by a distributed temporary node set in this protocol, which effectively reduced the dependency on the honesty of TIP and the reliability of communication channel. The protocol can provide full fairness and security guarantee under the condition that at least 2/3 nodes in the temporary node set are honest.
出处
《计算机应用》
CSCD
北大核心
2007年第8期1881-1883,1887,共4页
journal of Computer Applications
基金
国家自然科学基金资助项目(60473090)
教育部高等学校博士学科点专项科研基金资助项目(20050614018)
四川省科技攻关计划项目(05GG007-011-01)
关键词
P2P
公平交换
公开可验证秘密分享
Peer-to-Peer （P2P）
fair exchange
public verifiable secret share
