P2P业务中的安全计费方案

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[摘要] 在P2P业务模式下，由于资源的使用由用户间直接协商完成，电信运营商无法监控P2P业务的过程，这为P2P业务的计费和网络信息统计的安全性带来了较大的困难。文章探讨了多种P2P安全计费模式，并比较现网环境下各种安全计费模式应用的优缺点。为解决现有计费方式的问题，文章提出了基于Hash链的计费方式，该方法计算量较小，并能大大减少网络负担，适用于P2P流量和时长计费。

[关键词] P2P业务；分布式业务网络；计费

[Abstract] In the P2P service model, end-users provide resources to each other directly, and the operator may not be able to monitor the service process. Therefore, gathering accurate information for charging and accounting is difficult with P2P services. In this paper, we discuss possible secure P2P charging models and their advantages and disadvantages. We propose a hash-chain based solution, which does not involve heavy computation and can reduce the load of the network controller. This solution is suitable for P2P charging based on service time or traffic.

[Keywords] P2P service; DSN; charging