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TinyPBC: Pairings for authenticated identity-based non-interactive key distribution in sensor networks

TinyPBC: Pairings for authenticated identity-based non-interactive key distribution in sensor networks,10.1016/j.comcom.2010.05.013,Computer Communica

TinyPBC: Pairings for authenticated identity-based non-interactive key distribution in sensor networks   (Citations: 22)
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Key distribution in Wireless Sensor Net- works (WSNs) is challenging. Symmetric cryptosystems can perform it efficiently, but they often do not pro- vide a perfect trade-off between resilience and storage. Further, even though conventional public key and elliptic curve cryptosystems 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 able to compute pairings in about 5.5s on an ATmega128L clocked at 7.3828-MHz (the MICA2 and MICAZ node microcontroller).
Journal: Computer Communications - COMCOM , vol. 34, no. 3, pp. 485-493, 2011
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