Cryptology ePrint Archive: BibTeX Citation of Report 2006/476

@misc{cryptoeprint:2006:476,
    author = {Jeong Ok Kwon and Ik Rae Jeong and Kouichi Sakurai and Dong Hoon Lee },
    title = {Password-Authenticated Multi-Party Key Exchange with Different Passwords },
    howpublished = {Cryptology ePrint Archive, Report 2006/476},
    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.