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38C3: Blinkencity, radio controlling street lamps and power plants [video]
A significant portion of Europe's renewable energy production can be remotely controlled via longwave radio. While this system is intende...
In this talk, we will dive into radio ripple control technology, analyze the protocols in use, and discuss whether its weaknesses could potentially be leveraged to cause a blackout, or – more positively – to create a city-wide Blinkenlights-inspired art installation. With three broadcasting towers and over 1.3 million receivers, the radio ripple control system by *EFR (Europäische Funk-Rundsteuerung) GmbH* is responsible for controlling various types of loads (street lamps, heating systems, wall boxes, …) as well as multiple gigawatts of renewable power generation (solar, wind, biogas, …) in Germany, Austria, Czechia, Hungary and Slovakia. The used radio protocols Versacom and Semagyr, which carry time and control signals, are partially proprietary but completely unencrypted and unauthenticated, leaving the door open for abuse.
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