@misc{cryptoeprint:2015:1161,
    author = {Jia Xu  and Jianying Zhou and Liming Lu},
    title = {Cyber and Physical Access Control  in  Legacy System  Using Passwords},
    howpublished = {Cryptology ePrint Archive, Report 2015/1161},
    year = {2015},
    url = {https://eprint.iacr.org/2015/1161},
}