摘要 |
FIELD: physics, computer engineering.SUBSTANCE: invention relates to information processing devices. A server comprises: a processor unit; an input configured to receive sensor information from a client terminal; memory which stores instructions which, when executed by the processor unit, enable the processor unit to determine the current location of the client terminal, based at least in part on the sensor information and to perform prediction, based at least in part on the current location of the client, of the time of entry of the client terminal into a self-contained operation area; and an output configured to transmit to the client terminal (a) data to be used by the client terminal during self-contained operation, or (b) a decryption key for data stored on the client terminal.EFFECT: safer information processing.20 cl, 23 dwg |