Cryptology ePrint Archive: BibTeX Citation of Report 2013/152

@misc{cryptoeprint:2013:152,
    author = {Christian Cachin and Kristiyan Haralambiev and Hsu-Chun Hsiao and Alessandro Sorniotti},
    title = {Policy-based Secure Deletion},
    howpublished = {Cryptology ePrint Archive, Report 2013/152},
    year = {2013},
    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.