+# import an existing ssh key to a gpg key
+import_key() {
+ local hostName=$(hostname -f)
+ local keyFile="/etc/ssh/ssh_host_rsa_key"
+ local keyExpire
+ local userID
+
+ # check for presense of secret key
+ # FIXME: is this the proper test to be doing here?
+ fingerprint_server_key >/dev/null \
+ && failure "An OpenPGP host key already exists."
+
+ # get options
+ while true ; do
+ case "$1" in
+ -h|--hostname)
+ hostName="$2"
+ shift 2
+ ;;
+ -f|--keyfile)
+ keyFile="$2"
+ shift 2
+ ;;
+ -e|--expire)
+ keyExpire="$2"
+ shift 2
+ ;;
+ *)
+ if [ "$(echo "$1" | cut -c 1)" = '-' ] ; then
+ failure "Unknown option '$1'.
+Type '$PGRM help' for usage."
+ fi
+ break
+ ;;
+ esac
+ done
+
+ if [ ! -f "$keyFile" ] ; then
+ failure "SSH secret key file '$keyFile' not found."
+ fi
+
+ userID="ssh://${hostName}"
+
+ # prompt about key expiration if not specified
+ keyExpire=$(get_gpg_expiration "$keyExpire")
+
+ echo "The following key parameters will be used for the host private key:"
+ echo "Import: $keyFile"
+ echo "Name-Real: $userID"
+ echo "Expire-Date: $keyExpire"
+
+ read -p "Import key? (Y/n) " OK; OK=${OK:=Y}
+ if [ ${OK/y/Y} != 'Y' ] ; then
+ failure "aborting."
+ fi
+
+ log verbose "importing ssh key..."
+ # translate ssh key to a private key
+ (umask 077 && \
+ pem2openpgp "$userID" "$keyExpire" < "$sshKey" | gpg_host --import)
+
+ # find the key fingerprint of the newly converted key
+ fingerprint=$(fingerprint_server_key)
+
+ # export host ownertrust to authentication keyring
+ log verbose "setting ultimate owner trust for host key..."
+ echo "${fingerprint}:6:" | gpg_host "--import-ownertrust"
+ echo "${fingerprint}:6:" | gpg_authentication "--import-ownertrust"
+
+ # export public key to file
+ gpg_authentication "--export-options export-minimal --armor --export 0x${fingerprint}\!" > "${SYSDATADIR}/ssh_host_rsa_key.pub.gpg"
+ log info "SSH host public key in OpenPGP form: ${SYSDATADIR}/ssh_host_rsa_key.pub.gpg"
+
+ # show info about new key
+ show_server_key
+}
+