这是一个安全性漏洞，因为入侵者可能可以伪装成消息传递引擎并截获总线通信流。

This is a security hole because an intruder could potentially pretend to be a messaging engine and compromise the bus traffic.

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提供一个使用协商安全协议的流，以便对客户端/服务器通信中的客户端及服务器（可选）进行身份验证。

Provides a stream that uses the Negotiate security protocol to authenticate the client, and optionally the server, in client-server communication.

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多权限组播通信存在多个数据流且组播组中用户权限因获得数据流的不同而不同，其安全问题较难处理。

Security is difficult to handle in multi-privileged group communications, because group users have multiple access privileges when subscribing different data streams.

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