Hi Laura, you wanted to know how to use GPG subkeys. You want to use them for virtual machines. I found a very nice, practical explanation from the Debian wiki:
https://wiki.debian.org/Subkeys What I haven't found out is how/if you can use multiple subkeys for savannah.gnu.org. Does anyone know about that? Thanks, Björn
pgpD1_SvdGY68.pgp
Description: OpenPGP digital signature
