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UMTS系统空中接口接入协议的安全缺陷分析
引用本文:王盛,崔维嘉,郑娜娥.UMTS系统空中接口接入协议的安全缺陷分析[J].计算机工程与应用,2011,47(21):90-94.
作者姓名:王盛  崔维嘉  郑娜娥
作者单位:解放军信息工程大学信息工程学院,郑州,450002
摘    要:UMTS系统(Universal Mobile Telecommunication System,通用移动通信系统)采用了双向鉴权、信令完整性保护和数据加密等多种机制来保证用户通信的安全性。研究从挖掘协议安全缺陷出发,指出现有的UMTS系统通信协议中安全机制仍存在安全缺陷,以此为基础描述了一种能够有效通过系统的身份认证并阻止加密算法启动的中间人攻击方法,验证隐患的存在性。详细分析了导致现有安全缺陷的原因,给出了协议修改建议。

关 键 词:通用移动通信系统(UMTS)  空中接口  中间人攻击  身份认证  安全缺陷
修稿时间: 

Analysis of security flaw in access protocol of UMTS radio interface
WANG Sheng,CUI Weijia,ZHENG Na'e.Analysis of security flaw in access protocol of UMTS radio interface[J].Computer Engineering and Applications,2011,47(21):90-94.
Authors:WANG Sheng  CUI Weijia  ZHENG Na'e
Affiliation:WANG Sheng,CUI Weijia,ZHENG Na’e PLA Information Engineering University,Zhengzhou 450002,China
Abstract:Mutual authentication,signaling integrity protection and encryption are used in the UMTS(Universal Mobile Telecommunication System)to promote the security level of users'communication through radio interface,which makes traditional interception means used in the 2nd generation system ineffective.But by studying the protocol from 3GPP(3rd Generation Partner Project),the leaks of radio interface still exist.Based on analyzing the security fault in the protocol used in the radio interface of UMTS,a kind of Man-in-the-Middle attack which can be successfully verified in the mutual authentication and prevent the start of encryption algorithm is proposed.The feasibility of this kind of attack is analyzed.
Keywords:Universal Mobile Telecommunication System(UMTS)  radio interface  Man-in-the-Middle attack  authentication  security flaw
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