@misc{cryptoeprint:2007:193,
    author = {Sunder Lal and Vandani Verma},
    title = {Some Identity Based Strong Bi-Designated Verifier Signature Schemes},
    howpublished = {Cryptology ePrint Archive, Report 2007/193},
    year = {2007},
    url = {http://eprint.iacr.org/2007/193},
}