If all that fails, you can download and import the key manually:
curl 'http://pgp.surfnet.nl:11371/pks/lookup?op=get&search=0x38DBBDC86092693E' > gregkh.key
gpg --import gregkh.key
Cryptography engineers have been tearing their hair out over PGP’s deficiencies for (literally) decades. When other kinds of engineers get wind of this, they’re shocked. PGP is bad? Why do people keep telling me to use PGP? The answer is that they shouldn’t be telling you that, because PGP is bad and needs to go away. There are, as you’re about to see, lots of problems with PGP. Fortunately, if you’re not morbidly curious, there’s a simple meta-problem with it: it was designed in the 1990s, before serious modern cryptography.
E-Mail-Verschlüsselung ist seit Jahren ein Thema. Und seit Jahren setzt sie sich nicht durch. Das hat verschiedene Gründe. Wir zeigen trotzdem, wie es geht.