What is Quantum Cryptography & What Does It Promise?

The world is moving towards the quantum revolution. Quantum computers give access to unparalleled processing power. However, with all the advantages, we are also faced with unprecedented challenges which the conventional cybersecurity tools cannot help mitigate. However, in this context, the quantum cryptography techniques, or more accurately, the quantum key distribution methods can prove to be beneficial. Quantum cryptography is different from other symmetric and asymmetric cryptography techniques as instead of mathematics; it relies more on the concepts of physics as a key aspect of its security model. This type of cryptography uses photons (particles/waves of light) and their intrinsic properties to develop an unbreakable cryptosystem. It works by sending photons across an optical l