+Additionally, it is possible to use a single RSA master key pair for key
+recovery purposes: configure all clients doing encrypted backups to use a
+single public master key, and all subsequent encrypted backups will contain a
+RSA-encrypted copy of the used AES encryption key. The corresponding private
+master key allows recovering the AES key and decrypting the backup even if the
+client system is no longer available.
+
+WARNING: The same safe-keeping rules apply to the master key pair as to the
+regular encryption keys. Without a copy of the private key recovery is not
+possible! The `paperkey` command supports generating paper copies of private
+master keys for storage in a safe, physical location.
+