@misc{cryptoeprint:2011:253,
    author = {Mingqiang Wang and Xiaoyun Wang and  Tao Zhan},
    title = {Attack  Cryptosystems Based on HCDLP},
    howpublished = {Cryptology ePrint Archive, Report 2011/253},
    year = {2011},
    url = {http://eprint.iacr.org/2011/253},
}