@misc{cryptoeprint:2012:439,
    author = {Ding Wang and Chun-guang Ma},
    title = {Robust Smart Card based Password Authentication Scheme against Smart Card Loss Problem},
    howpublished = {Cryptology ePrint Archive, Report 2012/439},
    year = {2012},
    url = {http://eprint.iacr.org/2012/439},
}