Cryptology ePrint Archive: BibTeX Citation of Report 2004/217

@misc{cryptoeprint:2004:217,
    author = {Aggelos Kiayias and Moti Yung},
    title = {Cryptanalyzing the Polynomial-Reconstruction based Public-Key System Under Optimal Parameter Choice},
    howpublished = {Cryptology ePrint Archive, Report 2004/217},
    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.