On Mon, 30 Oct 1995 hallam@w3.org wrote:
Do not spec Keyed MD5, it is a complete looser. It is actually weak against a number of attacks. There are much better constructs for creating
What I've heard is that there are some worries about using short constants with MD5; maybe you could fill us in on the naughty stuff (someone said there were a load of papers in Crypto '95 on the subject?)
There is some work by Phil Rogaway on making keyed digest functions which I strongly recommend people look at. I can post a paper on the subject if people are interested.
Hey, you got a web-site? :-) 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))))