in reply to Favorite PGP module for web-to-email forms?

You might want to take a look at Crypt::OpenPGP. It's a pure Perl implementation of the OpenPGP standard and is compatible with PGP2, PGP5, GnuPG, etc.

Sample usage:

use Crypt::OpenPGP; my $pgp = Crypt::OpenPGP->new( PubRing => $pubring); my $ciphertext = $pgp->encrypt( Data => $data, Recipients => $key_id, Armour => 1, );