@misc{cryptoeprint:2012:437,
    author = {Amit Sahai and Hakan Seyalioglu and Brent Waters},
    title = {Dynamic Credentials and Ciphertext Delegation for Attribute-Based Encryption},
    howpublished = {Cryptology ePrint Archive, Report 2012/437},
    year = {2012},
    url = {http://eprint.iacr.org/2012/437},
}