Cryptology ePrint Archive: BibTeX Citation of Report 2012/485

@misc{cryptoeprint:2012:485,
    author = {Neil Hanley and HeeSeok Kim and Michael Tunstall},
    title = {Exploiting Collisions in Addition Chain-based Exponentiation Algorithms Using a Single Trace},
    howpublished = {Cryptology ePrint Archive, Report 2012/485},
    year = {2012},
    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.