P2P网络下基于联合投票的成员资格协议

A collaborative membership protocol based on joint votes for P2P network

基于CA的信任管理不能适应动态、对等和分布的点到点网络,提出的基于联合投票的成员资格协议实现分布式环境和点到点模式下节点身份控制和关键属性的初始化.该协议通过点组成员共同投票,以权重联合投票门限主体决定是否允许申请者加入该点组;通过增加角色信任度描述节点的投票,能更好地表达投票者的意愿;通过增加角色代理能力作为授权转让的参考,从宽度和深度两个方面实现授权转让范围的控制.另外该协议中各个节点还可以独立地作为CA来签发各自的投票,这是纯粹的点到点模式下的点组允入协议,摆脱了客户/服务器结构所固有的缺陷.并用运行模式分析方法说明了该协议形式的安全性.

Trust management based on CA can not suit the Peer-to-Peer network of dynamic, symmetry and decentralization. The CMPJV is proposed to determine whether or not to permit one applicant to join the peer group by joint votes of all the peers in the peer group, and to initialize the applicant＇s key attributes in the decentralized environment. The final result of joint votes is calculated by WCVTS, which introduces two factors; original role trust that permits peer to vote more precisely instead of yes or no, and role delegation ability that is used to limit the authorization scope horizontally and vertically. In addition, because any one peer is his own CA to issue his vote for the applicant, and CMPJV is one pure peer-to-peer group admission protocol , it can better overcome the inherent drawbacks of Client/Server. Finally, the running model＇s analysis is used to verify its formal security.