@misc{cryptoeprint:2012:043,
    author = {Chingfang Hsu and  Bing Zeng  and  Qi Cheng  and   Guohua Cui},
    title = {A novel Group Key Transfer Protocol},
    howpublished = {Cryptology ePrint Archive, Report 2012/043},
    year = {2012},
    url = {http://eprint.iacr.org/2012/043},
}