Essays On Fingerprinting

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To address these concerns, this research proposes two device type fingerprinting methods designed to augment existing intrusion detection methods in the ICS environment.

The first method measures data response processing times and takes advantage of the static and low-latency nature of dedicated ICS networks to develop accurate fingerprints, while the second method uses the physical operation times to develop a unique signature for each device type.

Because they are distributed around the country, often in remote areas, the systems are also difficult to update using the “patching” techniques common in computer networks.

Fingerprinting to detect false data or commands Which is why Beyah and his team have developed “fingerprinting techniques” to protect various operations of the power grid to prevent or minimize spoofing of packets that could be injected to produce false data or false control commands into the system.

Georgia Tech researchers have developed a device fingerprinting technique that could improve the security of the electrical grid and other industrial systems. electrical grid and other industrial systems, carried out over supervisory control and data acquisition (SCADA) protocols, often lack the ability to run modern encryption and authentication systems.

“The stakes are extremely high; the systems are very different from home or office computer networks,” said Raheem Beyah, an associate professor in the School of Electrical and Computer Engineering at the Georgia Institute of Technology. The legacy systems connected to them were never designed for networked security, Beyah said.Their current technique addresses the protocol used for more than half of the devices on the electrical grid, and future work will include examining application of the method to other protocols.Other vulnerable systems Beyah believes the approach could have broad application to securing industrial control systems used in manufacturing, oil and gas refining, wastewater treatment and other industries where they use devices with measurable physical properties.Security devices listening to signals traversing the grid’s control systems can differentiate between these legitimate devices and signals produced by equipment that’s not part of the system.Devices such as circuit breakers and electrical protection systems can also be told to open or close remotely, and they then report on the actions they’ve taken.We use cookies to offer you a better experience, personalize content, tailor advertising, provide social media features, and better understand the use of our services.To learn more or modify/prevent the use of cookies, see our Cookie Policy and Privacy Policy.The time required to open a breaker or a valve is determined by the physical properties of the device.If an acknowledgement arrives too soon after the command is issued — less time than it would take for a breaker or valve to open, for instance — the security system could suspect spoofing, Beyah explained.Beyond industrial controls, the principle could also apply to the Internet of Things (Io T), where the devices being controlled have specific signatures related to switching them on and off.“All of these Io T devices will be doing physical things, such as turning your air-conditioning on or off,” Beyah said.

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