| 摘要 |
FIELD: information technology. ^ SUBSTANCE: security module comprises a microcontroller and memory, and the memory has at least one execution region configured to store commands which can be executed by the microcontroller and at least one non-execution region in which the microcontroller cannot execute commands, involving breaking the executable code into blocks; joining each of the blocks to at least one control code of the block to form an extended block, wherein the size of such an extended block is not greater than the size of the execution region of the memory; and inputting content of extended block into a message of a type which is suitable for processing in a receiving device, such that the entire executable code is contained in several messages. ^ EFFECT: high security when transmitting information. ^ 12 cl, 14 dwg |
