@misc{cryptoeprint:2004:094,
    author = {Alex Biryukov},
    title = {Block Ciphers and Stream Ciphers:  The State of the Art },
    howpublished = {Cryptology ePrint Archive, Report 2004/094},
    year = {2004},
    url = {http://eprint.iacr.org/2004/094},
}