| Subject | English | Czech |
| IT | authentication service | autentizační služba |
| comp., MS | authentication service | ověřovací služba (A service provided by an operating system or underlying subsystem (like Microsoft Internet Information Services) that provides a means to authenticate users, typically using a user name and password. Part of the general security system, authentication services can also be offered at the application layer) |
| IT | European Commission Authentication Service | ověřovací služba Evropské komise |
| comp., MS | Internet Authentication Service | Služba ověřování v Internetu (The Microsoft implementation of a Remote Authentication Dial-In User Service (RADIUS) server, which provides authentication and accounting for network access, and proxy, which provides forwarding of RADIUS messages) |
| comp., MS | Remote Authentication Dial-In User Service A proposed Internet protocol in which an authentication server provides authorization and authentication information to a network server to which a user is attempting to link | protokol RADIUS (Remote Authentication Dial-In User Service) |