On the Energy Cost of Authenticated Key Agreement in Wireless Sensor Networks

TitleOn the Energy Cost of Authenticated Key Agreement in Wireless Sensor Networks
Publication TypeJournal Article
Year of Publication2012
AuthorsD. Galindo, R. Roman, and J. Lopez
JournalWireless Communications and Mobile Computing
Volume12
Pagination133-143
Date PublishedJan 2012
PublisherWiley
ISSN Number1530-8669
Keywordsidentity-based key agreement, key distribution, pairings, underwater wireless sensor networks, wireless sensor networks
Abstract

Wireless sensors are battery-powered devices which are highly constrained in terms of computational capabilities, memory and communication bandwidth. While battery life is their main limitation, they require considerable energy to communicate data. Due to this, it turns out that the energy saving of computationally inexpensive primitives (like symmetric key cryptography (SKC)) can be nullified by the bigger amount of data they require to be sent. In this work, we study the energy cost of key agreement protocols between peers in a network using asymmetric key cryptography. Our main concern is to reduce the amount of data to be exchanged, which can be done by using special cryptographic paradigms like identity-based and self-certified cryptography. The main news is that an intensive computational primitive for resource-constrained devices, such as non-interactive identity-based authenticated key exchange, performs comparably or even better than traditional authenticated key exchange (AKE) in a variety of scenarios. Moreover, protocols based in this primitive can provide better security properties in real deployments than other simple protocols based on symmetric cryptography. Our findings illustrate to what extent the latest implementation advancements push the efficiency boundaries of public key cryptography (PKC) in wireless sensor networks (WSNs).

URLhttp://dx.doi.org/10.1002/wcm.894
DOI10.1002/wcm.894
Citation KeyGalindo2010
Paper File: 
https://www.nics.uma.es/sites/default/files/papers/Galindo2010.pdf

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