Patent ID: 8868907
Filing Date: 2014-10-21
Classification: G06F,H04L

Abstract:
1. A device for processing communications for secure operation of industrial control system field devices, comprising: a processor, a memory, and a communication controller operably connected to form a processing device to be placed in-line between a Master Telemetry Unit (MTU) and a field device; a software verified microkernel stored in the memory including instructions for the processing device to provide a secure partitioning of the memory between a communication network interface address space, a security cell address space, and a field device interface address space; the communication network interface address space including software instructions and memory space for the processor to manage communication messages with the MTU, each communication message including a user identification identifying the sender of the message and a requested operation to be performed by the field device; the field network interface address space including software instructions and memory space for the processor to manage communication messages with the field device; and the security cell address space including software instructions and memory space for the processor to: