Given that modern society is increasingly becoming digital, there is growing demand for safe, secure communications. While cryptographic standards and digital certificate systems such as public key infrastructure (PKI) offer the verification, authentication and encryption required to protect digital communications, one threat to emerge in recent times is the prospect of these secure communications systems being compromised by quantum computers.
The idea of quantum supremacy, where certain computational tasks can no longer be run on classical high-performance computing architectures, is still some way off.
