[lir-wg] PGP support

Dear colleagues, I would like to implement a PGP authentication scheme with RIPE. I would appreciate any help including suggestions about any plugin to be used with an existing email client software (outlook express etc) or any completely independent software. I have tried PGP Freeware with success but keys state that this version is for "non commercial use" and Network Associates does not support it any more. I have also tried GnuPG but without any success (keys are created with 0 bytes). Thanks Chris