@misc{cryptoeprint:2005:169,
    author = {Shai Halevi and Paul A. Karger and Dalit Naor},
    title = {Enforcing Confinement in Distributed Storage and a Cryptographic Model for Access Control},
    howpublished = {Cryptology ePrint Archive, Report 2005/169},
    year = {2005},
    url = {http://eprint.iacr.org/2005/169},
}