@misc{cryptoeprint:2012:641,
    author = {Bin Wang},
    title = {A unidirectional conditional proxy re-encryption scheme based on non-monotonic access structure},
    howpublished = {Cryptology ePrint Archive, Report 2012/641},
    year = {2012},
    url = {http://eprint.iacr.org/2012/641},
}