if [ $new_mtime -ne $old_mtime ]; then
echo "Checking for new archive signing keys now"
add_keys_with_verify_against_master_keyring $keyring $MASTER_KEYRING
if [ $new_mtime -ne $old_mtime ]; then
echo "Checking for new archive signing keys now"
add_keys_with_verify_against_master_keyring $keyring $MASTER_KEYRING