@misc{cryptoeprint:2013:002,
    author = {Yu Chen and Zongyang Zhang and Dongdai Lin and Zhenfu Cao},
    title = {Generalized (Identity-Based) Hash Proof System and Its Applications },
    howpublished = {Cryptology ePrint Archive, Report 2013/002},
    year = {2013},
    url = {http://eprint.iacr.org/2013/002},
}