CA认证系统拥有高强度的加密算法，高可靠性的安全机制及完善的管理及配置策略，提供自动的密钥和证书管理服务。
Ca authentication center provides highly intensive encipher algorithm, highly liable security mechanism and management strategy, automatic generating key and certificate management.
TACACS是一个安全的加密协议，因此低于后来TACACS +和远程认证拨号用户服务协议。
TACACS is an encryption protocol and therefore less secure than the later TACACS + and Remote Authentication Dial-In User Service protocols.
TLS协议（传输层安全）能够在客户机与服务器之间认证，建立加密连接。
TLS ( Transport Layer Security) is capable of authenticating both the client and the server and creating a encrypted connection between the two.
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