@misc{cryptoeprint:2011:372,
    author = {Prashant Kushwah and Sunder Lal},
    title = {Identity based signcryption schemes without random oracles},
    howpublished = {Cryptology ePrint Archive, Report 2011/372},
    year = {2011},
    url = {http://eprint.iacr.org/2011/372},
}