Computer chip engineering has come a long way. Transistors marked a major shift in the computer industry since their invention. The number of transistors has roughly doubled every two years according to Moore's Law. Computer ships now fashion multiple cores, and clouds provide enormous compute capacity. Yet, none of this is enough to solve complex problems like breaking contemporary encryption algorithms used in the internet age. This includes encrypted data in transit and at rest. But, all this was predicted to change once a economically feasible quantum computer is invented.

Quantum computers exist today in their nascent forms. Yet, they are currently available on at least Google Cloud and AWS[1][2][3]. Any user of these provider can access these quantum computers on-demand! Yet, their power is not enough to break encryptions. Then what's the fuss all about?

Quantum Computers might achieve their usefulness threshold in another five to twenty years, according to Sundar Pinchai (CEO of Google) and Jensen Huang (CEO of Nvidia). The concern is that data in its encrypted form today can be decrypted by quantum computers in the future. This concept is popularly known as "Harvest now, decrypt later". Post Quantum Cryptography (PQC) algorithms aims to protect data against just that!

Importance of Adopting PQC

Status of Workarounds

PQC in India

PQC Browsers Support

Example Setup: Configuring PQC in Nginx