Cryptology ePrint Archive: BibTeX Citation of Report 2008/114

@misc{cryptoeprint:2008:114,
    author = {Giuseppe Ateniese and Roberto Di Pietro and Luigi V. Mancini and Gene Tsudik},
    title = {Scalable and Efficient Provable Data Possession},
    howpublished = {Cryptology ePrint Archive, Report 2008/114},
    year = {2008},
    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.