一种新型的LTE-A网络切换认证协议

发布时间：2018-02-05 21:41

本文关键词： LTE-A 切换认证 SDN(Software Defined Network) 椭圆曲线代理签名着色Petir网　出处：《电子学报》2017年02期 　论文类型：期刊论文

【摘要】：针对典型蜂窝网络LTE-A网络的切换认证问题,本文通过引入SDN(Software Defined Network,软件定义网络),提出了软件定义LTE-A异构网络架构,在中心控制器中共享UE(User Equipment,用户设备)的安全上下文信息,以实现简化切换认证过程,提高认证效率的目标.中心控制器的加入,使蜂窝与核心网通信时需要增加一次信令开销,而LTE-A网络的标准切换认证方法过于复杂,应用在软件定义LTE-A异构网络中,会产生较多的信令开销.基于代理签名的切换认证方法,使UE在验证身份时不用经过核心网,减少了信令开销.在安全性相同的情况下,基于椭圆曲线的加密体系比基于RSA的加密体系计算量更小,有利于减少中心控制器的计算压力.本文采用椭圆曲线代理签名方法,提出了一种新型的切换认证协议,并运用着色Petri网进行建模和仿真分析.仿真结果表明,该协议是有效的,且安全性更高.
[Abstract]:Aiming at the handoff authentication problem of typical cellular LTE-A networks, this paper introduces SDN(Software Defined Network, which is defined by software. This paper presents a software definition of LTE-A heterogeneous network architecture, in which the security context information of UE(User equipment is shared in the central controller. In order to simplify the process of handover authentication and improve the efficiency of authentication, the addition of central controller makes it necessary to increase the cost of signaling once when the cellular communicates with the core network. However, the standard handoff authentication method of LTE-A network is too complicated, and it will generate more signaling overhead when it is applied in the LTE-A heterogeneous network defined by software, and the handoff authentication method based on proxy signature. So that UE does not have to go through the core network to verify identity, reducing the signaling overhead. Under the same security, the encryption system based on elliptic curve has less computation than the encryption system based on RSA. In order to reduce the computational pressure of the central controller, this paper proposes a novel handover authentication protocol by using the elliptic curve proxy signature method. The simulation results show that the protocol is effective and the security is higher.
【作者单位】：北京信息科技大学计算机学院;
【基金】：国家自然科学基金(No.61370065,No.61502040) 国家十二五科技支撑计划(No.2015BAK12B03-3) 北京市优秀人才培养资助青年骨干个人项目(No.2014000020124G099)
【分类号】：TN929.5

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