基于CPK的IMS认证与密钥协商协议  

CPK-based Authentication and Key Agreement for IMS

作　　者：许书彬[1,2] 吴巍[2] 杨国瑞[2] 

机构地区：[1]北京邮电大学,北京100876 [2]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《现代电子技术》2011年第13期117-119,共3页Modern Electronics Technique

摘　　要：针对3G及4G网络发展中IMS系统的广泛应用及其AKA认证协议安全强度的不足,在分析CPK及IMSAKA认证机制的基础上,设计了一种基于CPK机制的IMS认证与密钥协商协议。经分析表明,该协议在提高强IMS智能终端的认证强度基础上,为引入额外的通信,并且扩展了IMS系统支持的认证机制。The safety of IMS system plays an important role in the evaluation of 3G and 4G network. The AKA protocol which is based on a long term shared key can not fulfill the requirements of wireless communication. On the basis of analyzing the （Authentication and Key Agreement） AKA and Combined Public Key （CPK） technology, a CPK-based authentication and key agreement protocol for IMS are proposed. The analysis show that the proposed protocol efficiently enhanced the security of IMS AKA protocol.

关 键 词：组合公钥体制 认证 密钥协商 IMS 

分 类 号：TN915.04[电子电信—通信与信息系统]