Abstract: Based on the analysis on the need of security authentication for satellite network and the characteristics of satellite network，design an end-to-end authentication protocol for satellite network.Based on IKE，this protocol can realize the identification between the earth and satellite，identification between satellites and negotiation of communication key.In addition，to verify the feasibility of the authentication protocol，design a simulated satellite network platform composed of many satellites.Seen from the testing result of the performance，the protocol demonstrates quite high efficiency，suitable for the satellite network environment.

摘要： 在对卫星网络的安全认证需求进行分析的基础上，结合卫星网络的特点，设计了一种适用于卫星网络的端到端认证协议。该协议是基于IKE协议的，可以实现星地和星间的身份认证和会话密钥的协商。另外，为了验证该协议的可行性，文章设计了一个包含多颗卫星的卫星网络仿真平台。在该平台上对协议性能的测试结果表明，该协议具有较好的效率，适用于卫星网络环境。