@misc{cryptoeprint:2006:213,
    author = {Ueli Maurer and Yvonne Anne Oswald and Krzysztof Pietrzak and Johan Sj{\"o}din},
    title = {Luby-Rackoff Ciphers from Weak Round Functions?},
    howpublished = {Cryptology ePrint Archive, Report 2006/213},
    year = {2006},
    url = {http://eprint.iacr.org/2006/213},
}