Security and delay issues in SIP systems
Security and delay issues in SIP systems
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DOI：
10.1002/dac.1018
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发表时间：
2009-08
影响因子：
2.1
通讯作者：
C. Callegari;R. Garroppo;S. Giordano;M. Pagano
中科院分区：
文献类型：
--
作者：
C. Callegari;R. Garroppo;S. Giordano;M. Pagano
IP多媒体（MoIP），特别是IP语音服务的部署，需要在充分利用它们为电信市场提供的巨大机会之前解决它们引入的新安全问题。此外，各种安全措施的实施可能导致服务质量的显著恶化，而服务质量对于满足用户质量期望的MoIP网络的运营至关重要。特别是，由于MoIP的时间关键性及其对中断和数据包丢失的低容忍度，传统数据网络中实施的许多安全措施根本不适用于当前形式。本文提出了一种基于会话发起协议（SIP）的MoIP架构的安全选项的分析，旨在评估其对延迟的影响。特别是，每个安全选项都是根据执行相关操作所需的时钟周期进行分析的。该参数可用于估计由安全机制引入的延迟。此外，本文提出了一个严格的定义，五个安全配置文件，提供不同级别的安全性的MoIP系统。版权所有© 2009约翰威利父子有限公司。
The deployment of multimedia over IP (MoIP), and in particular voice over IP services, requires to solve new security issues they introduce, before completely exploiting the great opportunities they offer to telecommunication market. Furthermore, the implementation of various security measures can cause a marked deterioration in quality of service, which is fundamental to the operation of an MoIP network that meets users' quality expectations. In particular, because of the time‐critical nature of MoIP and its low tolerance for disruption and packet loss, many security measures implemented in traditional data networks are simply not applicable in their current form. This paper presents an analysis of the security options of Session Initiation Protocol‐ (SIP)‐based MoIP architecture aimed at evaluating their impact on delay. In particular, each security option is analyzed in terms of clock cycles needed to perform the related operations. This parameter could be used to estimate the delay introduced by the security mechanisms. Moreover the paper proposes a rigorous definition of five security profiles, which provide different levels of security to a MoIP system. Copyright © 2009 John Wiley & Sons, Ltd.