@misc{cryptoeprint:2004:172,
    author = {Dan Boneh and Xavier Boyen},
    title = {Efficient Selective-ID Secure Identity Based Encryption Without Random Oracles},
    howpublished = {Cryptology ePrint Archive, Report 2004/172},
    year = {2004},
    url = {http://eprint.iacr.org/2004/172},
}