Device arrangement for carrying out or release an electronic service, electronic module for such an apparatus arrangement and method for securely inputting authorization data

An apparatus arrangement for carrying out or release an electronic service comprises a mobile device (10) on which an operating system is running and which has a network interface (22) for a network connection. The apparatus assembly also includes a separate electronic module (14) which is connected via an interface (20, 24) with the mobile device (10) and a card reader (16) for a chip card (18) and a control unit (26). The control unit (26) of the electronic module (14) is arranged so that it can generate an input window (28) on the mobile device (10) regardless of its operating system, via which a user can enter authorization data for performing or releasing of the electronic service. An electronics module (14) for such a device comprises an interface arrangement (20, 24) for connection of the electronics module (14) with a mobile device (10) comprising a network interface (22) for a network connection. The electronic module (14) further comprises a card reader (16) for a chip card (18) and a control unit (26) The control unit (26) is arranged so that it on the mobile device (10) regardless of its operating system, an input window (28) can produce, through which a user can enter authorization data for performing or enabling of an electronic service. A method for securely inputting authorization data for performing or enabling an electronic service, comprising the steps of: providing an apparatus arrangement of the type referred to above; Connecting the electronic module (14) to the mobile device (10); Inserting a smart card (18) into the card reader (16); Reading data from the chip (30) of the chip card (18); Generating an input window (28) on a display (12) of the mobile device (10) regardless of its operating system by the control unit (26) of the electronic module (14); and inputting authorization data over the input window (28) by a user.