@misc{cryptoeprint:2002:055,
    author = {Manoj Prabhakaran and  Amit Sahai},
    title = {Concurrent Zero Knowledge Proofs with Logarithmic Round-Complexity},
    howpublished = {Cryptology ePrint Archive, Report 2002/055},
    year = {2002},
    url = {http://eprint.iacr.org/2002/055},
}