@misc{cryptoeprint:2012:158,
    author = {Peter Gazi and Stefano Tessaro},
    title = {Efficient and Optimally Secure Key-Length Extension for Block Ciphers via Randomized Cascading},
    howpublished = {Cryptology ePrint Archive, Report 2012/158},
    year = {2012},
    url = {http://eprint.iacr.org/2012/158},
}