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Secure remote control of field-programmable network devices

A circuit and an associated lightweight protocol have been developed to secure communication between a control console and remote programmable network devices. The circuit provides encryption, data integrity checking and sequence number verification to ensure confidentiality, integrity and authentication of control messages sent over the public Internet. All of these functions are performed directly in FPGA hardware to provide high throughput and near-zero latency. The circuit has been used to control and configure remote firewalls and intrusion detection systems. The circuit could also be used to control and configure other distributed network applications.