一种高效的卫星通信多模式身份认证协议方案的设计方法

Design method of an efficient multi-mode authentication protocol scheme for satellite communication

针对现有星地协同认证模式认证时延高、地面认证服务器受到攻击易导致故障等问题,创新性地提出一种可切换的高效多模式身份认证方案。该方案采用星上主用、地面备用的认证模式,星上认证模式下,可有效降低传统星地认证传输过程带来的通信高时延,实现在不依赖地面归属网络的情况下快速认证;当星上认证模式不可使用时,可迅速切换地面认证模式,保证认证过程稳定可靠,提高系统稳定性和抗毁坏性。同时,该方案采用哈希算法和对称加密算法完成认证核心运算,有效减少认证过程计算开销,在提高卫星通信设备接入效率和安全性方面具有较高的应用价值。

Aiming at the problems of high authentication delay in the existing satellite-ground cooperative authentication mode,and the ground authentication server is vulnerable to failure when attacked,this scheme innovatively proposes a switchable and efficient multi-mode authentication scheme.The scheme adopts the authentication mode of primary use on the satellite and standby on the ground.Under the authentication mode on the satellite,it can effectively reduce the high communication delay caused by the traditional satellite-ground authentication transmission process,and achieve fast authentication without relying on the ground attribution network.When the on-satellite authentication mode is not available,the ground authentication mode can be switched quickly to ensure the stability and reliability of the authentication process and improve the system stability and survivability.At the same time,the scheme uses hash algorithm and symmetric encryption algorithm to complete the authentication core operation,effectively reducing the calculation cost of the authentication process,and has high application value in improving the access efficiency and security of satellite communication equipment.