Cryptology ePrint Archive: BibTeX Citation of Report 2004/203

@misc{cryptoeprint:2004:203,
    author = {John Black and Martin Cochran and Ryan Gardner},
    title = {How to Cheat at Chess: A Security Analysis of the Internet Chess Club},
    howpublished = {Cryptology ePrint Archive, Report 2004/203},
    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.