Data memory accessing method, for storing and reading messages, involves reading data blocks by device, e.g. security processor, during access of data in memory and newly writing section of blocks or additional blocks before next access

摘要

Data memory accessing method involves reading a number of data blocks by a device (3), e.g. security processor (SC), during an access of data stored in a data memory (2). A section of the data blocks or additional data blocks is newly written in the data memory before the next access. The data memory and the device communicate among each other, where the device is connected to a client computer (4) using a network connection (5). Independent claims are also included for: (1) A data memory; (2) A method for unobservable modification of data block contents; (3) A device with a unit for determining messages of data blocks of a data memory; (4) A method for application of a device in another device; and (5) A method of transmitting cryptographic code.