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Implementation of Diffie-Hellman key exchange on wireless sensor using elliptic curve cryptography

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2 Author(s)
Khajuria, S. ; Wirelesscenter-CTIF-Copenhagen, Copenhagen Univ. Coll. of Eng., Copenhagen, Denmark ; Tange, H.

This work describes a low-cost public key cryptography (PKC) based solution for security services such as authentication as required for wireless sensor networks. We have implemented a software approach using elliptic curve cryptography (ECC) over GF (2m) in order to obtain stronger cryptography. In our approach we are using Koblitz curves and TNAF (pi-adic non-adjacent form) with partial reduction modulo. A Diffie-Hellman key exchange is implemented. This public key exchange is done between two participants in the network. The actual implementation is done at an 8-bit ATmega128L Micaz platform from Crossbow. Results has shown that the point calculation can be done fairly amount of time with relatively small space consumption.

Published in:

Wireless Communication, Vehicular Technology, Information Theory and Aerospace & Electronic Systems Technology, 2009. Wireless VITAE 2009. 1st International Conference on

Date of Conference:

17-20 May 2009