@misc{cryptoeprint:2012:484,
    author = {Ding Wang, Chun-guang Ma, De-li Gu and Zhen-shan Cui},
    title = {Cryptanalysis of Two Dynamic ID-based Remote User Authentication Schemes for Multi-Server Architecture},
    howpublished = {Cryptology ePrint Archive, Report 2012/484},
    year = {2012},
    url = {http://eprint.iacr.org/2012/484},
}