Cryptology ePrint Archive: BibTeX Citation of Report 2007/066

@misc{cryptoeprint:2007:066,
    author = {Tetsuya Izu and Jun Kogure and Takeshi Koshiba and Takeshi Shimoyama},
    title = {Low-Density Attack Revisited},
    howpublished = {Cryptology ePrint Archive, Report 2007/066},
    year = {2007},
    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.