Cryptology ePrint Archive: BibTeX Citation of Report 2015/272

@misc{cryptoeprint:2015:272,
    author = {Baodong Qin and Shengli Liu},
    title = {Leakage-Flexible CCA-secure Public-Key Encryption: Simple Construction and Free of Pairing},
    howpublished = {Cryptology ePrint Archive, Report 2015/272},
    year = {2015},
    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.