Cryptology ePrint Archive: BibTeX Citation of Report 2002/090

@misc{cryptoeprint:2002:090,
    author = {Daniele Micciancio and Erez Petrank},
    title = {Efficient and Concurrent Zero-Knowledge from any public coin HVZK protocol},
    howpublished = {Cryptology ePrint Archive, Report 2002/090},
    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.