@misc{cryptoeprint:2012:664,
    author = {Jiang Zhang \and Zhenfeng Zhang \and Yu Chen},
    title = {PRE- Stronger Security Notion and Efficient Construction with New Property},
    howpublished = {Cryptology ePrint Archive, Report 2012/664},
    year = {2012},
    url = {http://eprint.iacr.org/2012/664},
}