@misc{cryptoeprint:2012:152,
    author = {Limin Shen, yinxia sun},
    title = {On security of a Certificateless Aggregate Signature Scheme},
    howpublished = {Cryptology ePrint Archive, Report 2012/152},
    year = {2012},
    url = {http://eprint.iacr.org/2012/152},
}