Difficult:
I think the most difficult part to understand was the mix columns and the key schedule. I'm not really sure why the mix columns is helpful other than it just reorganizes the columns differently. I also don't fully understand how the key schedule is made. The text seemed a little confusing of how they got each key.
Reflective:
It seems like this method is much more complicated than anything that we have looked at before. It seems pretty intense that for every 128 bits we have to do at least 10 rounds to obscure the data. I think this would be very time consuming if we had a decently long plaintext. I was wondering if all algorithms need to be longer in order to be more secure.
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