@misc{cryptoeprint:2006:355,
    author = {Boaz Barak and Manoj Prabhakaran and Amit Sahai},
    title = {Concurrent Non-Malleable Zero Knowledge},
    howpublished = {Cryptology ePrint Archive, Report 2006/355},
    year = {2006},
    url = {http://eprint.iacr.org/2006/355},
}