PIKE: peer intermediaries for key establishment in sensor networks

Haowen Chan, A. Perrig
Proceedings IEEE 24th Annual Joint Conference of the IEEE Computer and Communications Societies.  
The establishment of shared cryptographic keys between communicating neighbor nodes in sensor networks is a challenging problem due to the unsuitability of asymmetric key cryptography for these resource-constrained platforms. A range of symmetric-key distribution protocols exist, but these protocols do not scale effectively to large sensor networks. For a given level of security, each protocol incurs a linearly increasing overhead in either communication cost per node or memory per node. We
more » ... ribe Peer Intermediaries for Key Establishment (PIKE), a class of key-establishment protocols that involves using one or more sensor nodes as a trusted intermediary to facilitate key establishment. We show that, unlike existing key-establishment protocols, both the communication and memory overheads of PIKE protocols scale sub-linearly (O( √ n)) with the number of nodes in the network yet achieving higher security against node compromise than other protocols.
doi:10.1109/infcom.2005.1497920 dblp:conf/infocom/ChanP05 fatcat:6334d46dcbfbndpnkyuu6uyahq