@misc{cryptoeprint:2007:454,
    author = {Rafael Castro and Ricardo Dahab},
    title = {Efficient Certificateless Signatures Suitable for Aggregation},
    howpublished = {Cryptology ePrint Archive, Report 2007/454},
    year = {2007},
    url = {http://eprint.iacr.org/2007/454},
}