@misc{cryptoeprint:2009:486,
    author = {Allison Lewko and Brent Waters},
    title = {Efficient Pseudorandom Functions From the Decisional Linear Assumption and Weaker Variants},
    howpublished = {Cryptology ePrint Archive, Report 2009/486},
    year = {2009},
    url = {http://eprint.iacr.org/2009/486},
}