gpg2 on a Windows 10 Pro 64 bit machine

antony at antony at
Sun Feb 26 21:52:28 CET 2017

On February 26, 2017 5:30:20 AM EST, Jerry <jerry at> wrote:
>gpg: can't handle key algorithm 22
>gpg: can't handle key algorithm 18
>I am not sure what that is referring to. Also, there are numerous keys
>listed as revoked or expired. Is there a anything I can run from the
>command line that will automatically remove all revoked or expired

Not sure on that one.

>gpg (GnuPG) 2.0.30 (Gpg4win 2.3.3)
>libgcrypt 1.6.6

For your original issue, IIRC, that version of libgcrypt can't handle the elliptic curve algorithms that were added in libgcrypt 1.7 and gnupg 2.1. It just means that there are keys on your keyring that use these algorithms and gnupg doesn't understand them.

Sent from my Android device with K-9 Mail. Please excuse my brevity.

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