SIP协议不可抵赖性的设计与实现

Design and Implementation of Non-repudiation in SIP

伴随着VOIP的广泛使用,SIP协议已受到越来越多人的青睐,但SIP面临的安全威胁以及SIP安全机制的现状又令人不得不警觉。文中针对SIP协议的安全性设计并实现了不可抵赖性的解决方案,对使用SHA-1/MD5的算法在不同的硬件配置下实现不可抵赖性进行了性能分析。通过性能测试,在不同的硬件配置情况下,其速度是随着硬件配置的高低呈正态分布的。在实验室环境下,所提出的SIP不可抵赖性的方案可以很好地运行,并且具有通用性,能够被广泛地采用。

With widespread use of VOIP, SIP is attracting more and more attention. However, the threats faced by SIP and the present situation of its security mechanism are quite anxious. This paper describes the design and implementation of the non-repudiation scheme. At the same time it analyzes the capability of various hardware configuration with different algorithms. The results of capability test indicate that the speed takes on a normal distribution with the same method under different hardware configuration. In the laboratory environment, the Non-repudiation schemes proposed in this paper could perform well, are of generality, and could be adopted widely.