@misc{cryptoeprint:2001:039,
    author = {Taekyoung Kwon},
    title = {Robust Software Tokens: Towards Securing a Digital Identity},
    howpublished = {Cryptology ePrint Archive, Report 2001/039},
    year = {2001},
    url = {http://eprint.iacr.org/2001/039},
}