@misc{cryptoeprint:2007:381,
    author = {Xuyun Nie and Xin Jiang and Lei Hu and Jintai Ding},
    title = {Cryptanalysis of Two New Instances of TTM Cryptosystem},
    howpublished = {Cryptology ePrint Archive, Report 2007/381},
    year = {2007},
    url = {http://eprint.iacr.org/2007/381},
}