@misc{cryptoeprint:2009:517,
    author = {Qiong Huang and Duncan S. Wong},
    title = {New Constructions of Convertible Undeniable Signature Schemes without Random Oracles},
    howpublished = {Cryptology ePrint Archive, Report 2009/517},
    year = {2009},
    url = {http://eprint.iacr.org/2009/517},
}