Box: Intelligent Faraday Cage: acquires/patches/deploys firmware images

Secure and User-Friendly Over-the-Air Firmware Distribution in a Portable Faraday Cage
Martin Striegel, Florian Jakobsmeier, Yacov Matveev, Johann Heyszl, Georg Sigl

Setting up a large-scale wireless sensor network is challenging, as firmware must be distributed and trust between sensor nodes and a backend needs to be established. To perform this task efficiently, we propose an approach named Box, which utilizes an intelligent Faraday cage (FC). The FC acquires firmware images and secret keys from a backend, patches the firmware with the keys and deploys those customized images over the air to sensor nodes placed in the FC. Electromagnetic shielding protects this exchange against passive attackers. […]

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