@misc{cryptoeprint:2008:463,
    author = {Giuseppe Ateniese and Karyn Benson and Susan Hohenberger},
    title = {Key-Private Proxy Re-Encryption},
    howpublished = {Cryptology ePrint Archive, Report 2008/463},
    year = {2008},
    url = {http://eprint.iacr.org/2008/463},
}