@misc{cryptoeprint:2010:473,
    author = {Hui Zhang, Chunxiang Xu and Abdur Rashid Sangi},
    title = {Two Attacks on Dutta’s Dynamic Group Key Agreement Protocol},
    howpublished = {Cryptology ePrint Archive, Report 2010/473},
    year = {2010},
    url = {http://eprint.iacr.org/2010/473},
}