The Evaluation of Rekeying Protocols Within the Hubenko Architecture as Aplied to Wireless Sensor Setworks

<p>This thesis investigates the impact of using three different rekeying protocols-pair-wise hierarchical and Secure Lock within a wireless sensor network (WSN) under the Hubenko architecture. Using a Matlab computer simulation the impact of the three rekeying protocols on the number of bits transmitted across the network and the amount of battery power consumed in WSN nodes during rekey operations is investigated. Baseline pair-wise rekeying performance can be improved by using either Secure Lock or hierarchical rekeying. The best choice depends on the size of the WSN and the size of the key used. Hierarchical rekeying is the best choice for networks with 500 or more nodes using a key size of 512 bits. It is also the best choice for a network of 1000 nodes using a 256-bit key. For smaller networks with shorter key sizes Secure Lock is the best choice. Overall the number of bits transmitted for rekey operations can be reduced 3.32% to 75.80% and the battery power savings range from 0.03% to 39.94% compared to pair-wise keying.</p><p>This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact and remains as true to the original work as possible. Therefore you will see the original copyright references library stamps (as most of these works have been housed in our most important libraries around the world) and other notations in the work.</p><p>This work is in the public domain in the United States of America and possibly other nations. Within the United States you may freely copy and distribute this work as no entity (individual or corporate) has a copyright on the body of the work.</p><p>As a reproduction of a historical artifact this work may contain missing or blurred pages poor pictures errant marks etc. Scholars believe and we concur that this work is important enough to be preserved reproduced and made generally available to the public. We appreciate your support of the preservation process and thank you for being an important part of keeping this knowledge alive and relevant.</p>