17 Dec
2003
17 Dec
'03
11:17 p.m.
One important thing to note in an academic environment is that if you have foreign students who are on non-green card visas, you may need to get an export licence if they can access the server. I expect you'll probably get the licence without too much hassle, and you're unlikely to be indicted for this, but it's something to be aware of. Simon ---- (defun modexpt (x y n) "computes (x^y) mod n" (cond ((= y 0) 1) ((= y 1) (mod x n)) ((evenp y) (mod (expt (modexpt x (/ y 2) n) 2) n)) (t (mod (* x (modexpt x (1- y) n)) n))))