Hierarchical deterministic pairwise key predistribution scheme

Abstract

A security system for a hierarchical network (10) includes L hierarchical levels each corresponding to a security domain level (16), and a plurality of local network nodes (A, B, . . . , Z). A keying material generator (24) generates a set (30) of correlated keying material for each network node. Each set (30) of keying material is composed of L sub-sets (32) of keying material one for each security domain level (16). A set up server (34) distributes the generated sets (30) of keying material to each network node (A, B, . . . , Z) to enable the network nodes (A, B, . . . , Z) to communicate with one another at a security domain of a hierarchical level k by a use of a corresponding sub-set (32) of the security keying material.

Description

technical field [0001] This application relates to wireless networks. The present invention is applicable to medical wireless ad hoc sensor network systems and will be described with specific reference thereto. However, it is understood that the present invention is also applicable to other network systems and the like. Background technique [0002] Typically, wireless mobile ad hoc networks are deployed in hospitals and medical facilities for patient care and monitoring. Usually, a medical mobile ad hoc network established around a patient or a small group of patients forms a body sensor network (BSN). Typically, a BSN includes wireless sensors or medical devices that are placed on and / or deployed near a patient. In the somatosensory network, medical devices communicate peer-to-peer. Each device provides a set of medical services and requires access to a set of medical services on other devices. Clinicians can also access this device, for example, using a PDA that can ...

AI Technical Summary

Problems solved by technology

In such a system, a breach of security compromises the security and integrity of every sensor belonging to the system

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