Cryptology ePrint Archive: BibTeX Citation of Report 2007/319

@misc{cryptoeprint:2007:319,
    author = {Guomin Yang and Duncan S. Wong and Qiong Huang and Xiaotie Deng},
    title = {A New Security Definition for Public Key Encryption Schemes and Its Applications},
    howpublished = {Cryptology ePrint Archive, Report 2007/319},
    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.