Cryptology ePrint Archive: BibTeX Citation of Report 2012/531

@misc{cryptoeprint:2012:531,
    author = {Murat Ak and Aggelos Kiayias and Serdar Pehlivanoglu and Ali Aydin Selcuk},
    title = {Generic Construction of Trace and Revoke Schemes},
    howpublished = {Cryptology ePrint Archive, Report 2012/531},
    year = {2012},
    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.