@misc{cryptoeprint:2012:509,
    author = {Sebastian Kutzner and Phuong Ha Nguyen and  Axel Poschmann and Huaxiong Wang},
    title = {On 3-share Threshold Implementations for 4-bit S-boxes},
    howpublished = {Cryptology ePrint Archive, Report 2012/509},
    year = {2012},
    url = {http://eprint.iacr.org/2012/509},
}