I have a public key:




Is there any possibility to use this public key in Outlook 2010, without any add-ins? I know about gpg4win, but Outlook has also the possibility to send signed and encrypted E-Mails using certificats.

So, is it possible to convert a PGP PUBLIC KEY to a certificate, such that Outlook 2010 understands it?


No. PGP and S/MIME are completely independend crypto systems. While both use certificates that carry similar parameters for RSA or such, trying to "convert" from one to another still makes as little sense as trying to convert a piano to a guitar just because both use strings.

So, even if you manage to create an X.509 certificate for S/MIME containing the same RSA parameters as the existing PGP certificate, it'll remain useless because the recipient couldn't decrypt it using their PGP tools anyway. (They'd need to do the same kind of conversion, and at this point, if they wanted to use S/MIME, they wouldn't have sent you a PGP cert in the first place.)

| improve this answer | |
  • Thanks! So I can go the "Outlook" way, or use an add-in that supports PGP? – Kiril Nov 12 '14 at 12:43

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.