Re: Computing Rijndael's SBox?
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Date: 08/29/05
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Date: 28 Aug 2005 17:25:19 0700
You should read about finite fields.
One way to compute an inverse in this field is raise the element to the
254th power  but that assumes you know how to multiply in the field.
There are faster ways of computing the inverse, but they would take
more
time to explain, and I am impatient.
Scott
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