Cryptology ePrint Archive: BibTeX Citation of Report 2003/045

@misc{cryptoeprint:2003:045,
    author = {L. Hern\'{a}ndez Encinas and J. Mu\~{n}oz Masqu\'{e} and A. Queiruga Dios},
    title = {An algorithm to obtain an RSA modulus with a large private key},
    howpublished = {Cryptology ePrint Archive, Report 2003/045},
    year = {2003},
    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.