@misc{cryptoeprint:2005:238,
    author = {Raylin Tso and Takeshi Okamoto  and Eiji Okamoto},
    title = {Simple and Provable Secure Strong Designated Verifier Signature Schemes},
    howpublished = {Cryptology ePrint Archive, Report 2005/238},
    year = {2005},
    url = {http://eprint.iacr.org/2005/238},
}