@misc{cryptoeprint:2008:298, author = {Ryou Fujita and Kohtaro Tadaki and Shigeo Tsujii}, title = {Nonlinear Piece In Hand Perturbation Vector Method for Enhancing Security of Multivariate Public Key Cryptosystems}, howpublished = {Cryptology ePrint Archive, Report 2008/298}, year = {2008}, url = {http://eprint.iacr.org/2008/298}, }