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(2005 / vol.8 / no.1)
A New Lattice Attack on NTRU Cryptosystem
Daewan Han
Pages. 197-205     



In this article a new lattice attack on NTRU cryptosystem is
presented. In contrast with the previous lattice attacks, We can
apply our attack to the NTRUEncrypt of high degree such that we
can present the upper bound of the breaking times for the systems
of degree 251. We describe some interesting properties of newly
defined lattices and the attack in addition.



1. Introduction
2. Preliminaries
3. The New Lattice Attack
4. Conclusion



NTRU cryptosystem, Lattice attacks