@misc{cryptoeprint:2007:049,
    author = {jin zhou and ya-juan zhang and yue-fei zhu},
    title = {Security Arguments for a Class of ID-based Signatures},
    howpublished = {Cryptology ePrint Archive, Report 2007/049},
    year = {2007},
    url = {http://eprint.iacr.org/2007/049},
}