Cryptology ePrint Archive: BibTeX Citation of Report 2004/063

@misc{cryptoeprint:2004:063,
    author = {Helger Lipmaa},
    title = {An Oblivious Transfer Protocol with Log-Squared Communication},
    howpublished = {Cryptology ePrint Archive, Report 2004/063},
    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.