@misc{cryptoeprint:2011:090,
    author = {Yu Chen and Liqun Chen and Zhong Chen},
    title = {Generic Methods to Achieve Tighter Security Reductions for a Category of IBE Schemes },
    howpublished = {Cryptology ePrint Archive, Report 2011/090},
    year = {2011},
    url = {http://eprint.iacr.org/2011/090},
}