Cryptology ePrint Archive: BibTeX Citation of Report 2015/555

@misc{cryptoeprint:2015:555,
    author = {Tapas Pandit and Sumit Kumar Pandey and Rana Barua},
    title = {Attribute-Based Signcryption : Signer Privacy, Strong Unforgeability and IND-CCA2 Security in Adaptive-Predicates Attack},
    howpublished = {Cryptology ePrint Archive, Report 2015/555},
    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.