Noise: Re: CJR for perl-RSA t-shirt
Simon Spero
ses at tipper.oit.unc.edu
Wed Oct 11 22:41:47 PDT 1995
On Thu, 12 Oct 1995, Jiri Baum wrote:
>
> If you are reading a signed message, you simply strip off the
Not a good choice of words - remember, you should never expose your
private, er, key...
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))))
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