January 2018
Intermediate to advanced
524 pages
13h 33m
English
Content preview from Internet of Things for Architects
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Bluetooth mesh provisioning
A node may join a mesh by the act of provisioning. Provisioning is a secure process that takes an unprovisioned and insecure device and transforms it into a node in the mesh. The node will first secure a NetKey from the mesh. At least one NetKey must be on each device in the mesh to join. Devices are added to the mesh through a provisioner. The provisioner distributes the network key and a unique address to an unprovisioned device. The provisioning process uses elliptical-curve Diffie-Hellman key exchange to create a temporary key to encrypt the network key. This provides security from a man-in-the-middle attack during provisioning. The device key derived from the elliptical curve is used to encrypt messages sent ...
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