Cryptology ePrint Archive: BibTeX Citation of Report 2006/338

@misc{cryptoeprint:2006:338,
    author = {Fagen Li, Yupu Hu, and  Shuanggen Liu},
    title = {Efficient and Provably Secure Multi-Recipient Signcryption from Bilinear Pairings},
    howpublished = {Cryptology ePrint Archive, Report 2006/338},
    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.