Cryptology ePrint Archive: BibTeX Citation of Report 2007/296

@misc{cryptoeprint:2007:296,
    author = {Doo Ho Choi, Dong-Guk Han, and Howon Kim},
    title = {Construction of Efficient and Secure Pairing Algorithm and its Application},
    howpublished = {Cryptology ePrint Archive, Report 2007/296},
    year = {2007},
    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.