DES Erroer!!!

Posted by attriel October 6th, 2008

So, as I was finishing iteration 9 (yeah, this is taking longer than anticipated, because frankly it’s a bit tedious and requires that I have some decent space on the train) I found myself making an error in structure.  I was XORing R(i-1) with F(i) to get R(i) , and it should be L(i-1) …

 

Which means I need to go back and review iterations 1-8 and make sure I didn’t make this mistake earlier.  And if I did, I have to restart from that point, because the math will propogate :/

It may be a few more weeks before this gets posted.  And I still need to figure out a good mechanism for displaying it rather than just table after table.  I may look into some kind of graphical table or something  ; I’d like to do some kind of overlaying of grids to the numbers to show, but that might take some fancy flash and I don’t have flash :o

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