Cryptology ePrint Archive: BibTeX Citation of Report 2008/543

@misc{cryptoeprint:2008:543,
    author = {Chia-Hsin Owen Chen and Ming-Shing Chen and   Jintai Ding and Fabian Werner and Bo-Yin Yang},
    title = {Odd-Char Multivariate Hidden Field Equations},
    howpublished = {Cryptology ePrint Archive, Report 2008/543},
    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.