@misc{cryptoeprint:2005:034,
    author = {Gene Tsudik and Shouhuai Xu},
    title = {Flexible Framework for Secret Handshakes (Multi-Party Anonymous and Un-observable Authentication)},
    howpublished = {Cryptology ePrint Archive, Report 2005/034},
    year = {2005},
    url = {http://eprint.iacr.org/2005/034},
}