Active directory supports multiple authentication protocols - such as the kerberos v5 protocol , secure sockets layer v3 , and transport layer security using x . 509 v3 certificates - and security groups that span domains efficiently Activedirectory支持多种身份验证协议（例如kerberosv5协议、安全套接字层协议v3和使用了x . 509v3证书的传输层安全保护） ，并支持有效跨越域的安全组。
Is a collaborative effort to develop a robust , commercial - grade , full - featured , and open source toolkit implementing the secure sockets layer ssl v2 v3 and transport layer security tls v1 protocols as well as a full - strength general purpose cryptography library . stunnel is available at 依靠大家的共同努力旨在开发一个健壮的、商务级的、全功能的开放源代码工具箱，用来实现安全套接字层（ ssl v2 / v3 ）和传输层安全（ tls v1 ）协议以及功能强大的通用加密库。
Based on symmitric cryptographic techniques , asymmitric cryptographic techniques , message authentication code techniques , public key certificate and public key infrastructure techniques , tran sport layer security ( tls ) protocol and secure sockets layer ( ssl ) protocol provide security mechanisms used to provide provacy , integrity for network communication data and authenticate the communication parties 传输层安全协议( tls )和安全套接字层协议( ssl )基于对称密码技术、非对称密码技术、消息认证码技术、公钥证书和公开密钥基础设施技术提供了保证网络通信数据的机密性、完整性和对通信各方进行认证的机制。
The client performs mutual authentication with the target resource using the above certificates and establishes a secure , encrypted communication channel after this initial handshake , similar to the one involved in transport layer security protocol that supports secure transport https and secure shell 客户机与目标资源使用上面介绍的证书相互进行身份验证，并在第一次握手之后，建立一个安全的加密通信通道，该通道类似于支持安全传输https和secure shell （ ssh ）的传输层安全协议（ tls ）中涉及的通道。
With a public key infrastructure , you can implement standards - based technologies such as smart card logon capabilities , client authentication ( through secure sockets layer and transport layer security ) , secure e - mail , digital signatures , and secure connectivity ( using internet protocol security ) 利用公用密钥结构，可以执行一些标准的技术，例如智能卡登录功能、客户端身份验证（通过安全套接字层协议和传输层安全保护） 、安全电子邮件、数字签名和安全连接（使用internet协议的安全保护） 。
Moreover , the emphasis of this article analyzes ieee802 . 1x protocol and the authentication of eap - tls , mainly describes the protocol of eap and tls , which provide a further preparation of the model and software solutions in the later chapters . then it summarizes the key management in wlan , including the intention of key management and the styles of key , puts forward to the key management system of wlan . and it also puts forward to the model of secure authentication system of wlan , including the implementation of authenticator and sta , at the end of this article , we describe the future of security in wlan , focusing on the ieee802 . 11i protocol 本文重点是分析了ieee802 . 1x协议及eap - tls认证的技术，描述了eap协议，和tls传输层安全协议，为后面的模型和软件方案的建立做了深入的准备，并进一步论述了无线局域网的密钥管理，包括密钥管理的目的和密钥的种类以及提出了无线局域网的密钥管理和安全认证的模型，包括认证者端和sta端的两个子模型。
