@misc{cryptoeprint:2003:145,
    author = {Michael Backes and Birgit Pfitzmann and Michael Waidner},
    title = {Symmetric Authentication Within a Simulatable Cryptographic Library},
    howpublished = {Cryptology ePrint Archive, Report 2003/145},
    year = {2003},
    url = {http://eprint.iacr.org/2003/145},
}