@misc{cryptoeprint:2011:234,
    author = {Debiao He},
    title = {Comments on a secure dynamic ID-based remote user authentication scheme for multi-server environment using smart cards},
    howpublished = {Cryptology ePrint Archive, Report 2011/234},
    year = {2011},
    url = {http://eprint.iacr.org/2011/234},
}