MSN Protocol 11 implementation

I am working on a MSNP 11 imp开发者_如何学Pythonlementation and currently having some issues with Challenge response generation.

Does some one has a good knowledge about the algorithm used to generate the Challenge response?

Thanks.

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I might be a little late but I was searching through SO for MSN related posts and this showed up. You can find an explanation of the challengestring in MSNP11 and some examples here.