@misc{cryptoeprint:2008:400,
    author = {Yalin Chen and  Hung-Min Sun and Chun-Hui Huang and Jue-Sam Chou},
    title = {Comments on two password based protocols},
    howpublished = {Cryptology ePrint Archive, Report 2008/400},
    year = {2008},
    url = {http://eprint.iacr.org/2008/400},
}