*/ $lang['yubico_client_id'] = 'Your client id given by Yubico (see https://upgrade.yubico.com/getapikey/).'; $lang['yubico_secret_key'] = 'Please enter the secret key belonging to the above mentioned client id.'; $lang['yubico_maxkeys'] = 'How many Yubikey\'s can be managed by the user (default is 2).';