Cryptology ePrint Archive: BibTeX Citation of Report 2008/285

@misc{cryptoeprint:2008:285,
    author = {Jithra Adikari and Vassil Dimitrov and Laurent Imbert},
    title = {Hybrid Binary-Ternary Joint Sparse Form and its Application in Elliptic Curve Cryptography},
    howpublished = {Cryptology ePrint Archive, Report 2008/285},
    year = {2008},
    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.