基于ELGamal数字签名的卫星网络认证方案

Satellite network authentication scheme based on ELGamal digital signature

为解决卫星干扰、非法盗用卫星资源的问题,分析了卫星通信网络的特点,并综合考虑卫星网络的安全认证的需求,提出了一种基于ELGamal数字签名的卫星网络安全双向认证方案。该方案对ElGamal数字签名算法本身进行了改进,加快了ElGamal数字签名的签名速度,节约了通信性能的开销。在某专用卫星通信系统信息传输中实际应用结果表明,该方案有效克服了传统认证方案中存在的认证效率较低和认证过程较复杂等问题。

To deal with satellite interference and illegal use of satellite resources,the factors of satellite communication network are analyzed,and the safety certification requirements of satellite network are taken into consideration comprehensively.A two-way satellite network security authentication scheme based on ElGamal digital signature is proposed.The ElGamal digital signature algorithm itself is improved in this scheme.The speed of ElGamal digital signature is accelerated and the expense of communication performance is econo-mized.Actual application in the information transmission of a special satellite communication system shows that this method overcome the low efficiency and complex process authentication existed in traditional certification.