Safe communicated model of SIP network based on improved SIP protocol

ZHANG Zhao-xin1; FANG Bin-xing1; ZHANG Hong-li1; JIANG Chun-xiang2

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Safe communicated model of SIP network based on improved SIP protocol

更新时间：2024-10-14

- Safe communicated model of SIP network based on improved SIP protocol
- Issue 12, Pages: 39-47(2007)
- 作者机构：
  
  1. 哈尔滨工业大学计算机网络与信息安全技术研究中心
  2. 黑龙江省通信管理局
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP393.08
- Published：2007
- 稿件说明：
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ZHANG Zhao-xin1, FANG Bin-xing1, ZHANG Hong-li1, et al. Safe communicated model of SIP network based on improved SIP protocol[J]. 2007, (12): 39-47.
DOI：

ZHANG Zhao-xin1, FANG Bin-xing1, ZHANG Hong-li1, et al. Safe communicated model of SIP network based on improved SIP protocol[J]. 2007, (12): 39-47. DOI：

摘要

通过对SIP协议安全性的深入研究

结合PKI技术、数字时间认证技术、数字证书及SIP网络的特点提出了基于改进SIP协议的SIP网络安全通信模型。借鉴原有的协议流程制定了新的呼叫建立子协议

重新制定了注册子协议和漫游注册子协议

增加了时间同步子协议和密钥协商子协议

并在实际环境下对该模型进行时间延迟测试。实验结果表明该模型在有效提高SIP网络机密性、完整性、可用性、抗否认性和新鲜性的同时所带来毫秒级的时间延迟是可接受的。

Abstract

Through analyzing the security of SIP

combining PKI technology

digital time authentication

digital certifi-cate and the characteristic of SIP network

the safe communicated model of SIP network based on improved SIP protocol was put forward.New call established protocol was constituted used the primary flow for reference

new register protocol and roam register protocol were constituted

time synchronization protocol and negotiating key protocol was added for this model

and test the safe communicated model in real circumstance.The result of the experiment proved that this model improved the confidentiality

integrality

usability

non-repudiation and novelty of the SIP network with the millisecond delay which can be accepted.

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