@misc{cryptoeprint:2001:086,
    author = {Helger Lipmaa},
    title = {Statistical Zero-Knowledge Proofs from Diophantine Equations},
    howpublished = {Cryptology ePrint Archive, Report 2001/086},
    year = {2001},
    url = {http://eprint.iacr.org/2001/086},
}