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SUMMARY:A novel\, efficient\, scalable and easy-to-use cryptographic key m
 anagement solution for wireless sensor networks - Dr Michael Healy\, Unive
 rsity of Limerick 
DTSTART:20130205T161500Z
DTEND:20130205T171500Z
UID:TALK42693@talks.cam.ac.uk
CONTACT:30488
DESCRIPTION:*Abstract:* Due to the sensitive nature of the data gathered b
 y many wireless sensor networks (WSNs) it is becoming critical that this d
 ata be protected. However\, due to the constrained nature of resources on 
 sensor nodes\, this is a difficult task. In particular\, the use of asymme
 tric cryptographic operations\, i.e. public key ciphers\, often places an 
 unjustifiable burden on a sensor node’s resources. As a result symmetric
  key ciphers are primarily used in WSNs. This introduces the difficult tas
 k of deploying and managing the required symmetric keys\, which can be a m
 ajor challenge even for\nmoderately sized networks. All currently availabl
 e WSN specific solutions to this problem either have a very simple key uti
 lisation strategy for the network\, resulting in a low level of security o
 verall\, or else only provide limited connectivity. Additionally the major
 ity of these solutions are overly complex\, both conceptually and in terms
  of implementation\, and so they are not used. This work identifies ten re
 quirements for a WSN key management solution and then presents the design\
 , implementation and evaluation of a solution\, called µKM\, which meets 
 each of these requirements and\novercomes the problems of the existing sch
 emes. This is achieved by relaxing the memory constraint in order to provi
 de a large pool of keys to each node\, a valid concession on newer generat
 ion sensor nodes. The evaluation of µKM shows that it is as efficient\, i
 f not more so\, than the existing solutions in terms of energy consumption
 \, network latency\, and\, to a lesser extent\, program memory and RAM req
 uirements. It also comes out well ahead of the alternatives in link key es
 tablishment overheads due to the fact that it requires no prior and/or add
 itional communication in order to set up individual link keys between any 
 two nodes.\n\n*Bio:* Dr. Michael Healy is the lead embedded systems softwa
 re developer for Shimmer Research\, a supplier of wireless sensor network 
 technology primarily focused on health and fitness applications. He receiv
 ed a BEng\nDegree in Computer Engineering from the University of Limerick 
 in 2005 and was granted a PhD from the same institution in 2012 for work o
 n securing wireless sensor networks. Prior to Shimmer Research Michael\nwo
 rked as an R&D applications engineer in Intel's digital health group. 
LOCATION:Lecture Theatre 2\, Computer Laboratory\, William Gates Building
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