How do I create Ntlm Type 1 and Type 3 messages in .Net

Posted by brj011 on Stack Overflow See other posts from Stack Overflow or by brj011
Published on 2011-03-14T00:04:39Z Indexed on 2011/03/14 0:10 UTC
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I need to create Type 1 message and Type 3 message for NTLM handshaking. Is there any .Net API for this?

Essentially, the application is WPF based, but Socket is used in order to stream data from the server. Use of socket is a technical requirement, but the problem is when user needs to connect to the server using a proxy server. Further, if the proxy authorization is based on Ntlm, the client application needs to create Type 1 and Type 3 messages in order to handshake with the proxy server.

My question is: Is there any API already available in .NET libraries that can be consumed in order to create these different types of NTLM messages? Any help or alternatives will be greatly appreciated. Thanks in advance.

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