Cryptology ePrint Archive: BibTeX Citation of Report 2014/676

@misc{cryptoeprint:2014:676,
    author = {Zhen Liu and Zhenfu Cao and Duncan S. Wong},
    title = {Fully Collusion-Resistant Traceable Key-Policy Attribute-Based Encryption with Sub-linear Size Ciphertexts},
    howpublished = {Cryptology ePrint Archive, Report 2014/676},
    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.