The advent of quantum computers and their increasing computing performance threatens the use of current cryptographic protocols as a way to ensure protection against cyberthreats. For this reason, in 2016, the American National Institute of Standards and Technology started a post-quantum cryptography standardization process for finding new quantum-resistant cryptographic protocols for both key encapsulation mechanisms and digital signatures. Saber is one of the four finalists, it relies on the Module-Learning-with-Rounding problem which is a lattice-based problem and it is believed to be quantum-resistant. The main implementation bottleneck of this protocol is the significant time spent in computing polynomial multiplications in polynomial rings with power of two moduli.