Perl users, I modified Ben Trott's Crypt::DH module (that guy is all over CPAN) to use Math::BigInt instead of Math::Pari and not depend on Crypt::Random. So now doing Diffie-Hellman in Perl is much easier. Pre-release copy: http://www.danga.com/dist/misc/Crypt-DH-0.04.tar.gz Ben will upload it to CPAN sometime today, unless he finds bugs. - Brad