@misc{cryptoeprint:2011:576,
    author = {Jing Liu, Qiong Huang, Bo Yang},
    title = {Efficient Multicast Key Distribution Using HOWF-based Access Control Structures},
    howpublished = {Cryptology ePrint Archive, Report 2011/576},
    year = {2011},
    url = {http://eprint.iacr.org/2011/576},
}