@misc{cryptoeprint:2012:496,
    author = {Nishant Doshi and Devesh Jinwala},
    title = {Updating attribute in CP-ABE: A New Approach},
    howpublished = {Cryptology ePrint Archive, Report 2012/496},
    year = {2012},
    url = {http://eprint.iacr.org/2012/496},
}