Cryptology ePrint Archive: BibTeX Citation of Report 2004/030

@misc{cryptoeprint:2004:030,
    author = {Colin Stahlke},
    title = {Point Compression on Jacobians of Hyperelliptic Curves over $\F_q$.},
    howpublished = {Cryptology ePrint Archive, Report 2004/030},
    year = {2004},
    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.