@misc{cryptoeprint:2009:061,
    author = {Shigeo Tsujii and Kohtaro Tadaki and Ryou Fujita and Masahito Gotaishi and Toshinobu Kaneko},
    title = {Security Enhancement of Various MPKCs by 2-layer Nonlinear Piece In Hand Method},
    howpublished = {Cryptology ePrint Archive, Report 2009/061},
    year = {2009},
    url = {http://eprint.iacr.org/2009/061},
}