@misc{cryptoeprint:2012:125,
    author = {Aijun Ge and Cheng Chen and Chuangui Ma and Zhenfeng Zhang},
    title = {Short and Efficient Expressive Attribute-Based Signature in the Standard Model},
    howpublished = {Cryptology ePrint Archive, Report 2012/125},
    year = {2012},
    url = {http://eprint.iacr.org/2012/125},
}