@misc{cryptoeprint:2005:028,
    author = {Giuseppe Ateniese and Kevin Fu and Matthew Green and Susan Hohenberger},
    title = {Improved Proxy Re-Encryption Schemes with Applications to Secure Distributed Storage},
    howpublished = {Cryptology ePrint Archive, Report 2005/028},
    year = {2005},
    url = {http://eprint.iacr.org/2005/028},
}