Kerberos是目前广泛被采用的成熟的认证协议,跨域认证是Kerberos在网络中的应用,实现远距离网络认证功能。传统的Kerberos基于对称密钥加密技术,为了使网络认证更加安全有效,在Kerberos认证过程中采用公钥加密。对kerberos集成公钥跨域认证进行深入研究,并对集成公钥后的Kerberos跨域过程进行模拟环境测试和性能分析。 Kerberos is a mature authentication protocol that is widely adopted at present. Cross-domain authentication is the application of Kerberos in the network to achieve long-distance network authentication. Traditional Kerberos is based on symmetric key cryptography. In order to make network authentication more secure and effective, public key cryptography is used in Kerberos authentication. In-depth study of kerberos integrated public key cross-domain authentication, and simulated environment testing and performance analysis of Kerberos cross-domain process with integrated public key.