user@host:~$ gpg --verbose --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys ED444FF07D8D0BF6
gpg: data source: http://keyserver.ubuntu.com:80
gpg: armor header: Comment: Hostname:
gpg: armor header: Version: Hockeypuck ~unreleased
gpg: key 0xED444FF07D8D0BF6: number of dropped non-self-signatures: 235
gpg: pub  rsa4096/0xED444FF07D8D0BF6 2012-03-05  Kali Linux Repository <devel@kali.org>
gpg: /home/user/.gnupg/trustdb.gpg: trustdb created
gpg: using pgp trust model
gpg: key 0xED444FF07D8D0BF6: public key "Kali Linux Repository <devel@kali.org>" imported
gpg: Total number processed: 1
gpg:               imported: 1