What encryption method does .NET use when setting secure="true" in a remoting channel configuration?

We have bee开发者_如何转开发n asked by a customer which encryption methods are used for our remoting calls -- we use the secure="true" tokenImpersonationLevel="impersonation" attributes on the channel in the configuration file.

Is this using Kerberos? NTML? CHAPS?

I can't seem to find any documentation on this.

EDIT: We use TCP channels for remoting.

Well, a secure TCP channel (suppoert starting with .NET 2) uses SSPI to encrypt the data.

http://www.codeguru.com/columns/dotnet/article.php/c10253

According to Wikipedia: http://en.wikipedia.org/wiki/Security_Support_Provider_Interface The "Secure channel" is using differen encrpytions depending on the OS support, but SSL/TLS is part of it.