@misc{cryptoeprint:2012:481,
    author = {John Steinberger},
    title = {Improved Security Bounds for Key-Alternating Ciphers via Hellinger Distance},
    howpublished = {Cryptology ePrint Archive, Report 2012/481},
    year = {2012},
    url = {http://eprint.iacr.org/2012/481},
}