Re: Proving RC6' quadratic permutation is a permutation

* Gerry Myerson

* Marius Bernklev

Out of idle curiosity, I wonder how exactly I would prove, or even
"just" convince myself, that RC6' quadratic permutation, A×(2×A +
1) (mod 2^N) actually is a permutation.

The only thing I see so far is that for
A×(2×A + 1) = B×(2×B + 1) (mod 2^N), [...]

I don't know. I don't know what RC6' means, and I don't know what
that symbol is that comes after the A.

RC6 is a block cipher. "×" is a common symbol for multiplication.


--
Marius Bernklev

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