For the current security features of 3g, an issuing process of user certificate based on 3g security access mechanism AKA is put forward.
针对3g现有安全特点，提出了基于3g安全接入机制AKA的用户证书颁发过程。
Through analyzing the 3g security services structure, we found that 3gpp did not offer effective authentication services to the terminal client in application domain.
通过对3g安全服务结构的分析，发现3gpp没有有效为客户端应用提供认证服务。
The thesis starts with the introduction of the 3G security architecture, characteristics and aims, and the security mechanism of network access is elaborated at the same time.
首先介绍了3G系统的安全体系结构、安全特性、安全目标，并详细阐述了网络接入安全机制。
With the advent of 3g mobile systems a serious effort has been made to create a consistent security architecture based on the threats and risks a 3g system faces.
随着第三代移动通信系统(3G)的出现，需构建一个能够解决3g将要面临的各种安全威胁的和谐同一的安全结构体系。
Then this paper describes the 3G-WLAN security problems in interlinkage, and gives the 3G-WLAN link security solution.
接着描述了3G-WLAN互连中的安全问题，并给出了3G-WLAN互连时的安全解决方案。
The limitations of 3G-AKA protocol are analyzed, and an improved protocol of 3G-AKA is proposed, it can provide more advanced security requirements.
分析了3G-AKA协议的安全缺陷，提出了一个改进的3G-AKA协议，满足了更高的安全需求。
Analysizes 3g system security system structure and the advantages and disadvantages of the security specific property were analysized.
分析了3G系统的安全体系结构和安全特性的优缺点。
IP Multimedia Subsystem (IMS) has been accepted as the core control platform of the 3g network. Its security problems are facing severe challenges now.
IP多媒体子系统(IMS)作为3g网络的核心控制平台，其安全问题正面临着严峻的挑战。
The air interface security technologies for the protection of data confidentiality and data integrity in 3g are discussed.
讨论了第3代移动通信系统的空中接口安全保护技术，包括数据机密性保护、数据完整性保护。
Based on these, the author analyze kinds of security threat faced to 3g system and discuss the security rule and security objectives.
在此基础之上，分析了3G系统面临的各种安全威胁并对系统的安全原则和安全目标进行了讨论。
At present, the ground cable networking mode has been used for security company's WAN generally, this article presents using the 3g wireless communication to cover the shortage.
目前证券公司广域网普遍采用地面有线模式组网，本文提出利用3g无线通信来弥补上述不足。
This paper is devoted to the security of 3g mobile communication system.
本文着重研究了第三代移动通信系统的安全。
The shortcomings to 3G Authentication and Key Agreement(AKA) protocol were described through analyzing its procedure and security.
分析了3G认证与密钥协商协议（AKA）的过程和特点，指出了存在的缺陷，提出了一种新的AKA改进方案。
The shortcomings to 3G Authentication and Key Agreement(AKA) protocol were described through analyzing its procedure and security.
分析了3G认证与密钥协商协议（AKA）的过程和特点，指出了存在的缺陷，提出了一种新的AKA改进方案。
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