@misc{cryptoeprint:2010:543,
    author = {Dan Boneh and Amit Sahai and Brent Waters},
    title = {Functional Encryption: Definitions and Challenges},
    howpublished = {Cryptology ePrint Archive, Report 2010/543},
    year = {2010},
    url = {http://eprint.iacr.org/2010/543},
}