is there a key that gives round 1 and round 0 that are equal? (a0,b0,c0,d0) = (a1,b1,c1,d1) how many keys like that exist? can it continue to round 2? round3...?
Take the 2minute tour
×
MathOverflow is a question and answer site for professional mathematicians. It's 100% free, no registration required.
