@misc{cryptoeprint:2001:011,
    author = {Wenbo Mao},
    title = {New Zero-knowledge Undeniable Signatures - Forgery of Signature Equivalent to Factorisation},
    howpublished = {Cryptology ePrint Archive, Report 2001/011},
    year = {2001},
    url = {http://eprint.iacr.org/2001/011},
}