The ever changing world require, day after day, an increasing amount of data to be transmitted and stored in servers. With this amount of data the problem of make data accessible only to the owner or to maintain this data secret among an organization has increased. Hence the field of Cryptography has gain success in modern times, especially in today world, where the advance of quantum computing could make the cryptography system less secure by breaking old RSA systems. It is important to develop new system that are still secure against quantum computer attacks. To overcome such problems, the NIST (National Institute of Standard and Technology) have host a competition in order to create new technologies that are still secure against quantum computer attacks.