@misc{cryptoeprint:2009:388,
    author = {Kerem Kaskaloglu  and Ferruh Ozbudak},
    title = {A Simple Secret Sharing Scheme for Hierarchical Threshold Access Structures},
    howpublished = {Cryptology ePrint Archive, Report 2009/388},
    year = {2009},
    url = {http://eprint.iacr.org/2009/388},
}