REAL-TIME COMMUNICATION SECURITY FOR AUTOMATION NETWORKS

摘要

The present invention provides a framework, device and method for providing broadcast communication security over Ethernet within an automation system wherein security plug is integral to providing the functionality required for the secure working of the automation system. The security plug is implemented using ASIC/FPGA technology to provide compatibility with existing systems and an intuitive plug-and-play model. The system of the present invention addresses jitter-sensitivity, which is crucial for automation networks, by providing a real-time architecture, with minimal transmission latencies. The security plug of the present invention has separate security and communication modules that make provisions for protocol independent working of the security plug, within these networks. The method of the present invention includes the steps of bootstrapping, secret key establishment and secure communication, providing real-time guarantees.