@misc{cryptoeprint:2012:062,
    author = {S Sharmila Deva Selvi and Subhashini Venugopalan and C. Pandu Rangan},
    title = {On the Security of Attribute Based Signature Schemes},
    howpublished = {Cryptology ePrint Archive, Report 2012/062},
    year = {2012},
    url = {http://eprint.iacr.org/2012/062},
}