@misc{cryptoeprint:2011:574,
    author = {Jia XU and Ee-Chien CHANG},
    title = {Towards Efficient Provable Data Possession},
    howpublished = {Cryptology ePrint Archive, Report 2011/574},
    year = {2011},
    url = {http://eprint.iacr.org/2011/574},
}