@misc{cryptoeprint:2005:412,
    author = {Tsz Hon Yuen and Victor K. Wei},
    title = {Constant-Size Hierarchical Identity-Based Signature/Signcryption without Random Oracles},
    howpublished = {Cryptology ePrint Archive, Report 2005/412},
    year = {2005},
    url = {http://eprint.iacr.org/2005/412},
}