@misc{cryptoeprint:2006:049,
    author = {Joo Yeon Cho and Josef Pieprzyk},
    title = {Crossword Puzzle Attack on NLS},
    howpublished = {Cryptology ePrint Archive, Report 2006/049},
    year = {2006},
    url = {http://eprint.iacr.org/2006/049},
}