A document with - a contactless chip card interface with an antenna resonant circuit for communicating with a reader in accordance with a request-response transmission protocol and for coupling in electrical energy from the reader in order to supply energy to the document, wherein the chip card interface has a first transmission protocol component for sending protocol parameters for an initialisation of the transmission protocol on account of the receipt of an initialisation command and a second transmission protocol component for transmitting application data after the initialisation of the transmission protocol with the aid of the protocol parameters, wherein the second transmission protocol component is designed to receive at least one read command for reading application data and, thereupon, to send a response comprising the application data, - a processor for executing the first and second transmission protocol components, a chip card operating system and an application program , - a switch for switching the switch into a first or a second switching state, wherein the switch interrupts the antenna resonant circuit when the switch has one of the first and second switching states, and the switch connects the antenna resonant circuit when the switch has the other of the first and second switching states, - a non-volatile memory , in which application data are stored which contain at least one attribute of a user who is associated with the document, wherein the chip card operating system is designed, on account of the receipt of the initialisation command, to actuate the first transmission protocol component in order to send a response comprising the protocol parameters, wherein the application program implements a cryptographic protocol so that, on the basis of a read command to read the attribute, a response comprising the attribute is generated and is sent with the aid of the second transmission protocol component only if the cryptographic protocol has been performed successfully beforehand. - a contactless chip card interface with an antenna resonant circuit for communicating with a reader in accordance with a request-response transmission protocol and for coupling in electrical energy from the reader in order to supply energy to the document, wherein the chip card interface has a first transmission protocol component for sending protocol parameters for an initialisation of the transmission protocol on account of the receipt of an initialisation command and a second transmission protocol component for transmitting application data after the initialisation of the transmission protocol with the aid of the protocol parameters, wherein the second transmission protocol component is designed to receive at least one read command for reading application data and, thereupon, to send a response comprising the application data, - a processor for executing the first and second transmission protocol components, a chip card operating system and an application program , - a switch for switching the switch into a first or a second switching state, wherein the switch interrupts the antenna resonant circuit when the switch has one of the first and second switching states, and the switch connects the antenna resonant circuit when the switch has the other of the first and second switching states, - a non-volatile memory , in which application data are stored which contain at least one attribute of a user who is associated with the document, <EOS>