Cryptology ePrint Archive: BibTeX Citation of Report 2006/452

@misc{cryptoeprint:2006:452,
    author = {TingMao Chang, Jin Zhou, YaJuan Zhang, YueFei Zhu},
    title = {Hybrid Protocol For Password-based Key Exchange in Three-party Setting},
    howpublished = {Cryptology ePrint Archive, Report 2006/452},
    year = {2006},
    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.