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This conference talk from the 38th Chaos Communication Congress (38C3) explores the reverse engineering of the ESP32's Wi-Fi peripheral to create an open source Wi-Fi stack. Discover how thousands of ESP32s at the CCH run closed source Wi-Fi stacks that could benefit from open source alternatives, allowing for modification and auditing of software handling sensitive data. Follow the speakers' journey as they reverse engineer the proprietary stack and build a new open source alternative, revealing the ESP32's versatility as both a research tool and IoT SoC with unlocked capabilities. Learn about using the ESP32 as a pentesting tool, a B.A.T.M.A.N. mesh router, or an AirDrop client. The presentation covers Wi-Fi technology, ESP32 architecture, reverse engineering techniques, and practical approaches to such projects, presented by Frostie314159 and Jasper Devreker.
