Cryptology ePrint Archive: BibTeX Citation of Report 2014/310

@misc{cryptoeprint:2014:310,
    author = {Yu Chen and Qiong Huang and Zongyang Zhang},
    title = {Sakai-Ohgishi-Kasahara Identity-Based Non-Interactive Key Exchange Revisited and More},
    howpublished = {Cryptology ePrint Archive, Report 2014/310},
    year = {2014},
    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.