Short question. The title says it all... is advanced mathematics (i.e. beyond the classic college level calculus sequence) relevant to any field of computer security besides cryptography? By relevant, I mean to be at the edge of the science one must have advanced mathematical training.
If so, what branch of security and what branch of mathematics--and why?
Please note that I am not looking down on any branch of security, at all, just curious what other branches of security advanced mathematics is essential for.
Edit: In lieu of some comments in the answers: I consider the "classic" college calculus sequence to be something like: calculus 1, calculus 2, multi-variable calculus, and differential equations. Of course, one can branch off into other mathematical fields before reaching differential equations.