Cryptology ePrint Archive: BibTeX Citation of Report 2006/237

@misc{cryptoeprint:2006:237,
    author = {Claire Whelan and Mike Scott},
    title = {Side Channel Analysis of Practical Pairing Implementations: Which Path is More Secure?},
    howpublished = {Cryptology ePrint Archive, Report 2006/237},
    year = {2006},
    note = {\url{http://eprint.iacr.org/}},
}

You will need the url.sty package (comes with most LaTeX installations) for the last line. Otherwise, remove the \url command.