Cryptology ePrint Archive: BibTeX Citation of Report 2009/620

@misc{cryptoeprint:2009:620,
    author = {Daniel R. L. Brown and Matthew J. Campagna and Scott A. Vanstone},
    title = {Security of ECQV-Certified ECDSA Against Passive Adversaries
},
    howpublished = {Cryptology ePrint Archive, Report 2009/620},
    year = {2009},
    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.