Re: Theoretical alternative mixColumn and its security
From: Tom St Denis (tomstdenis_at_iahu.ca)
Date: 11/29/03
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Date: Sat, 29 Nov 2003 15:16:26 GMT
"Benjamin Choi" <nospam@technosoft21.com> wrote in message
news:7eeb3109.0311282259.5f4c7d6d@posting.google.com...
> > How can you have a branch of 8 from a 4x4 non-singular transform?
>
> Must be some calculation error... because the method I used to calculate
was
> W(b) + W(F(b)) where W is the count of active bytes and b is a 4-byte
buffer.
What is branch though? [hint: it's an extreme of that expression].
Tom
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