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AssigneeKoninklijke Philips Electronics N.V.
InventorsOscar Garcia Morchon, Klaus Kursawe
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The invention relates to a method for identifying compromised nodes in a ZigBee network comprising a general trust center, divided in at least two security domains, each security domain corresponding to a spatial or temporal area, and being associated with a different root keying material, and each node being identified by an identifier, the method comprising: upon detection of a node (U1) entering into a security domain (SD), the general trust center (TC) distributing to the node at least one keying material share corresponding to the entered security domain, and upon detecting corruption of at least two security domains, determining, for each security domain, based on information registered by the base station (BTS), a respective set of nodes having received keying material corresponding to said security domain,—comparing the respective sets of nodes and identifying the common nodes as being compromised.
A method for identifying compromised nodes in a ZigBee network comprising a general trust center (TC), divided in at least two security domains (SD1, SD2), each security domain being associated with a different root keying material, and each node being identified by an identifier, the method comprising:
A system for identifying compromised nodes in a network, divided in at least two security domains S1 and S2, each security domain being associated with a root keying material, and each node being identified by an identifier, the system comprising:
Dependencies are inferred from the claim text.