@misc{cryptoeprint:2007:084,
    author = {Sanjit Chatterjee and Palash Sarkar},
    title = {Constant Size Ciphertext HIBE in the Augmented Selective-ID Model and its Extensions},
    howpublished = {Cryptology ePrint Archive, Report 2007/084},
    year = {2007},
    url = {http://eprint.iacr.org/2007/084},
}