.. ================================================== .. FOR YOUR INFORMATION .. -------------------------------------------------- .. -*- coding: utf-8 -*- with BOM. .. ================================================== .. DEFINE SOME TEXTROLES .. -------------------------------------------------- .. role:: underline .. role:: typoscript(code) .. role:: ts(typoscript) :class: typoscript .. role:: php(code) What does it do? ^^^^^^^^^^^^^^^^ This extension is an authentication service for TYPO3 which extends the frontend and backend login process by strong two-factor authentication. The two-factor authentication is provided by a TYPO3 users username and password combined with a OTP (one time password) which is generated by a YubiKey (a physical USB-key) A YubiKey enabled user has to enter his username, password and a OTP to login to the TYPO3 backend and/or frontend. More information about the YubiKey, Yubico and the YubiCloud OTP validation service can be found at `http://www.yubico.com `_