AES - MixColumns

From: Urban Stadler (u.stadler_at_pfeilheim.sth.ac.at)
Date: 11/14/04 

Date: Sun, 14 Nov 2004 09:24:56 +0100

Hi

I'm trying to understand the AES algorithm and so far everything was pretty
clear but I can't figure how the MixColumns works.
I've researched in google but i't didn't come up with anything useful for
me.
Could somebody give me a step by step example for this transformation?

Thanks
Urban

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