With the upgrade from Debian Jessie to Stretch also GnuPG 1 was upgraded to GnuPG 2. There are some issues now which I don't know how to solve them. I used to follow Riseup's OpenPGP best practices (https://riseup.net/ru/security/message- ... -practices) until now for use with GPG1, but some things seem to work differently now on GPG2.
When trying to search for a key, gpg gives me the following warning message:
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gpg: keyserver option 'ca-cert-file' is obsolete; please use 'hkp-cacert' in dirmngr.conf
Problem is, if I search for keys I receive the following error messages:
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gpg: error searching keyserver: Kein Name (meaning 'No name')
gpg: keyserver search failed: Kein Name