SYSTEM FOR SECURING DATA ON A DATA CARRIER

摘要

System for protecting data on a data carrier (1) on which a medium code (11c) is stored in an accessible manner and on which data is stored which is only accessible after presenting an access code (AC), which system comprises: a) an apparatus incorporating, a suitably programmed processor (2), a user interface (3), a mobile telephone (4) incorporating a SIM-card (SIM), b) a central station (5) incorporating a further suitably programmed processor (9) co-operating with a number of memories (12, 13, 14) for storing valid medium codes (MC) and valid SIM codes and valid access codes. The processor in the apparatus can be connected through the telephone and through a suitable communication network to the further processor in the central station whereby the SIM-code of the telephone and the medium code of the carrier are transferred to the further processor to be processed into an access code after which the resulting combination of codes is compared with the codes stored in said memories, after which in case of a valid code combination a coded access permission is sent to the processor enabling the software to read the data form the data carrier.