摘要： 认证服务是保障系统安全极其重要的手段之一,但是对于P2P系统,由于它具有开放性和自治性,使其不再适合使用传统的中心认证服务模式。文章提出了一种基于椭圆曲线数字签名和门限密钥分享的分布式认证服务模型,可以为P2P系统提供更强的安全性,并通过实验验证了该模型的有效性。

关键词: 椭圆曲线数字签名, 门限密钥共享, P2P, 分布式认证

Abstract: Certification authority is one of the most important methods being used to protect the system security,but it is not fit for the P2P system,because there are some characteristics in the P2P system.The article proposes a decentralizes authtication model which is based on ECDSA(ellipse curve cryptosystem)and threshold secret sharing scheme.At last,the experiments prove that the model can provide stronger security for the P2P system.

中图分类号: 

• TP393.08