C# Client and Java Server

[Imig, Wolfgang]

Hello, 

we use the JASS to authenticate a Java client to a Java server (J2EE
Servlet). 
The client calls GSSContext.initSecContext to generate an authentication
token and the server checks it by calling GSSContext.acceptSecContext.
This works fine.

Now, we want to authenticate a C# client (>= WindowsXP) to our server.
Thus some C# or C++ code has to replace the GSSContext.initSecContext. I
tried to obtain a Kerberos ticket using LsaCallAuthenticationPackage
with KERB_RETRIEVE_TKT_REQUEST. But the resulting ticket is not accepted
by the GSSContext.acceptSecContext. 

Does anyone know, how to obtain a Kerberos ticket in a C# or C++
application that is accepted by the JASS functions?

Thanks
Wolfgang
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