Cryptology ePrint Archive: BibTeX Citation of Report 2002/002

@misc{cryptoeprint:2002:002,
    author = {Jens Groth},
    title = {Evaluating Security of Voting Schemes in the Universal Composability Framework},
    howpublished = {Cryptology ePrint Archive, Report 2002/002},
    year = {2002},
    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.