Abstract
With the emergence and development of quantum computers, the traditional public-key cryptography (PKC) is facing the risk of being cracked. In order to resist quantum attacks and ensure long-term communication security, NIST launched a global collection of Post Quantum Cryptography (PQC) standards in 2016, and it is currently in the third round of selection. There are three Lattice-based PKC algorithms that stand out, and NTRU is one of them. In this article, we proposed the first complete and compact full hardware implementation of NTRU algorithm submitted in the third round. By using one structure to complete the design of the three types of complex polynomial multiplications in the algorithm, we achieved better performance while reducing area costs.
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