Cryptology ePrint Archive: BibTeX Citation of Report 2009/281

@misc{cryptoeprint:2009:281,
    author = {Qian Wang and Cong Wang and Jin Li and Kui Ren and Wenjing Lou},
    title = {Enabling Public Verifiability and Data Dynamics for Storage Security},
    howpublished = {Cryptology ePrint Archive, Report 2009/281},
    year = {2009},
    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.