| 摘要 |
A computer network (500, 600) comprising a central server (516) for providing a computer program (524) comprising machine executable instructions and a mobile telephone device (502) comprising a processor (544) for executing the computer program. The mobile telephone is configured for receiving the computer program from the central server via a network connection (510, 514). The mobile telephone device comprises a telecommunication access card (554). The telecommunications access card has an accessible memory (558) and a protected memory (562). Execution of the computer program causes the processor to write a set of encrypted files (526, 528, 530, 532) to the accessible memory in a predetermined order. The telecommunications access card is adapted to decrypt the encrypted files in the predetermined order into at least one decrypted file. The telecommunications access card is adapted to write the at least one decrypted file to the protected memory. |
