Security module for monitoring system security has microprocessor connected to other functional units, programmed for overlapping processing with intermediate system state validation

摘要

The security module has a microprocessor (120) connected to further functional units (114,116,150) and programmed for overlapping processing with intermediate validation of the system state and signaling the module state to a signaling device (107,108. When dynamic system state changes occur the processor performs overlapping processing of at least part of the memory area used for associated validation. An Independent claim is also included for a method of monitoring system security.