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