@misc{cryptoeprint:2007:368,
    author = {Vipul Goyal},
    title = {Reducing Trust in the PKG in Identity Based Cryptosystems},
    howpublished = {Cryptology ePrint Archive, Report 2007/368},
    year = {2007},
    url = {http://eprint.iacr.org/2007/368},
}