@misc{cryptoeprint:2008:002,
    author = {Piyi Yang and Zhenfu Cao and Xiaolei Dong},
    title = {Fuzzy Identity Based Signature},
    howpublished = {Cryptology ePrint Archive, Report 2008/002},
    year = {2008},
    url = {http://eprint.iacr.org/2008/002},
}