TinyPBC: Pairings for Authenticated Identity-Based Non-Interactive Key Distribution in Sensor Networks

Leonardo B.  Oliveira; Michael Scott; Julio López; Ricardo Dahab

Paper 2007/482

TinyPBC: Pairings for Authenticated Identity-Based Non-Interactive Key Distribution in Sensor Networks

Leonardo B. Oliveira, Michael Scott, Julio López, and Ricardo Dahab

Abstract

Key distribution in Wireless Sensor Networks (WSNs) is challenging. Symmetric cryptosystems can perform it efficiently, but they often do not provide a perfect trade-off between resilience and storage. Further, even though conventional public key and elliptic curve cryptosystem are computationally feasible on sensor nodes, protocols based on them are not. They require exchange and storage of large keys and certificates, which is expensive. Using Pairing-based Cryptography (PBC) protocols, conversely, parties can agree on keys without any interaction. In this work, we (i) show how security in WSNs can be bootstrapped using an authenticated identity-based non-interactive protocol and (ii) present TinyPBC, to our knowledge, the most efficient implementation of PBC primitives for an 8-bit processor. TinyPBC is an open source code able to compute pairings as well as binary multiplication in about 5.5s and 4019.46$\mu$s, respectively, on the ATmega128L 7.3828-MHz/4KB SRAM/128KB ROM processor -- the MICA2 and MICAZ node processor.

Metadata

Available format(s): PDF
Publication info: Published elsewhere. Unknown where it was published
Keywords: sensor networks key agreement identity-based cryptography pairing-based cryptography implementation
Contact author(s): barbosa leonardo @ gmail com
History: 2008-01-07: revised; 2007-12-28: received; See all versions
Short URL: https://ia.cr/2007/482
License: CC BY

BibTeX

@misc{cryptoeprint:2007/482,
      author = {Leonardo B.  Oliveira and Michael Scott and Julio López and Ricardo Dahab},
      title = {TinyPBC: Pairings for Authenticated Identity-Based Non-Interactive Key Distribution in Sensor Networks},
      howpublished = {Cryptology ePrint Archive, Paper 2007/482},
      year = {2007},
      note = {\url{https://eprint.iacr.org/2007/482}},
      url = {https://eprint.iacr.org/2007/482}
}