Cryptology ePrint Archive: BibTeX Citation of Report 2007/451

@misc{cryptoeprint:2007:451,
    author       = {Omkant Pandey and
		    Rafael Pass and
		    Amit Sahai and
		    Wei-Lung Dustin Tseng and
		    Muthuramakrishnan Venkitasubramaniam},
    title        = {Precise Concurrent Zero Knowledge},
    howpublished = {Cryptology ePrint Archive, Report 2007/451},
    year         = {2007},
    note         = {\url{https://ia.cr/2007/451}},
}

You will need the url.sty package (comes with most LaTeX installations) for the last line. Otherwise, remove the \url command.