Quote from: idcasn on October 16, 2012, 08:58 pmHi, I use a Macbook with Mac GPG. I am able to import keys into GPG Keychain Access with no problem. However, when I try to encrypt a message, only certain keys are displayed on the list of keys to choose from.I have found that the keys that work have a subkey. When listed in GPG Keychain Access the keys that work have a "pub", "uid" and "sub" entry, while the ones that don't work only have "pub" and "uid". If I check the details on a certificate, the ones that work have an entry on the "Subkeys" tab.Does anyone else have this problem? Is there a work-around on my end? ThanksStrictly speaking, the keys without an encryption sub-key no longer conform to the official specs. What you might try is to download and install the latest nightly build of GPGTools: https://nightly.gpgtools.org/GPGTools_Installer-latest.dmg