Portable data carrier comprising a web server

A method in a portable data carrier having a web server, comprising the steps:

• receiving a data request message from a data processing device connected with the data carrier by the web server of the data carrier, wherein the data request message relates to a provision of data for the data processing device;
• responding to the data request message by causing the web server to send a data provision message comprising the requested data to the data processing device, wherein the data are read out from a non-volatile memory of the data carrier or, if the data are not stored in the non-volatile memory, are obtained from a data provision device connected with the data carrier;
• wherein, if the requested data are obtained from the data provision device, the data carrier determines whether the obtained data are stored in the non-volatile memory of the data carrier.

A portable data carrier, comprising at least one communication interface, a non-volatile memory, and a web server application, which is arranged

• to receive a data request message from a data processing device connectable with the data carrier via the at least one communication interface, wherein the data request message relates to a provision of data for the data processing device, and
• to respond to the data request message by sending a data provision message comprising the requested data to the data processing device, wherein the web server application either reads out the data to be sent from a non-volatile memory of the data carrier or sends via the at least one communication interface a data obtaining message to a data provision device connectable with the data carrier and obtains the data from the data provision device, if the data are not stored in the non-volatile memory;
• wherein by a check application, which is adapted to determine whether the obtained data are stored in the non-volatile memory of the data carrier, if the data are not stored in the non-volatile memory of the data carrier.