Jintai Ding Lei Hu Xuyun Nie Jianyu Li John Wagner High Order Linearization Equation (HOLE) Attack on Multivariate Public Key Cryptosystems. 233-248 2007 conf/pkc/2007 Public Key Cryptography http://dx.doi.org/10.1007/978-3-540-71677-8_16 db/conf/pkc/pkc2007.html#DingHNLW07