### On the secure connectivity of wireless sensor networks

**Ganesh, A ***(University of Bristol)*

Friday 16 August 2013, 13:30-14:15

Seminar Room 1, Newton Institute

#### Abstract

We consider a model of a wireless sensor network in which nodes are distributed uniformly at random over a unit square, and can communicate other nodes within a ?xed radius. This is the well-known random geometric graph model. In addition, each node is assigned a subset of cryptographic keys chosen uniformly at random from a key pool. Two nodes can communicate only if they are within range of each other, and possess at least one common key. We establish a connectivity threshold for these random graph models. This resolves a conjecture of Osman Yagan. Joint work with Bikash Dey, Santhana Krishnan and D. Manjunath.

#### Presentation

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