@misc{cryptoeprint:2006:085,
    author = {Xavier Boyen and Brent Waters},
    title = {Anonymous Hierarchical Identity-Based Encryption (Without Random Oracles)},
    howpublished = {Cryptology ePrint Archive, Report 2006/085},
    year = {2006},
    url = {http://eprint.iacr.org/2006/085},
}