不同网络同时维护多套认证设施会大幅降低异构融合网络的接入效率,多套认证机制中的短板效应也会降低融合网络中的安全性能。为此,提出基于用户、位置、寻址的信息分离技术,从移动通信系统对安全的需求出发,分析并借鉴3G网络认证与密钥分配协议,在异构无线网络环境中建立基于统一用户标识的的认证方案。仿真测试结果表明,该方案实现了异构网络和移动终端的统一接入及安全认证。 Different networks maintain multiple authentication facilities at the same time, which will greatly reduce the access efficiency of heterogeneous converged networks. The short board effect in multiple authentication mechanisms will also reduce the security performance in converged networks. Therefore, the information separation technology based on user, location and addressing is proposed. Based on the security requirements of mobile communication system, the authentication and key distribution protocols of 3G network are analyzed and referenced. Based on the unified user identification The certification program. Simulation results show that the scheme achieves unified access and security authentication of heterogeneous networks and mobile terminals.