Cryptology ePrint Archive: BibTeX Citation of Report 1997/002

@misc{cryptoeprint:1997:002,
    author = {Mihir Bellare and Markus Jakobsson and Moti Yung},
    title = {Round-Optimal Zero-Knowledge Arguments Based on any One-Way Function},
    howpublished = {Cryptology ePrint Archive, Report 1997/002},
    year = {1997},
    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.