格子関係は二つの様子. Phong Q. Nguyen, Oded Regev Learning a Parallelepiped: Cryptanalysis of GGH and NTRU Signatures Nicolas Gama, Nick Howgrave-Graham, Phong Q. Nguyen Symplectic Lattice Reduction and NTRU 上はBest Paper Awardらしい(Nguy…