Quantum Key Distribution (QKD) vs. Post-Quantum Cryptography (PQC) – they both have their right to exist! 

Even a new kind of software-based cryptography, such as Post-Quantum Cryptography (PQC), does not solve the problem, as it (again!) relies on assumptions about the hacker. Physics-based Quantum Key Distribution (QKD) does not! With the looming threat of quantum computers, the need for robust encryption methods in our digital age has never been more critical. So let's dive into the significance of QKD and why PQC might not be the golden bullet we hope for:Traditional encryption methods, such as RSA, rely on mathematical hardness, making them vulnerable to quantum attacks once the first large-scale quantum computer becomes a reality. PQC, while promising, still hinges on assumptions about the resources available to potential hackers, much like RSA. 

Not every device can host full-fledged QKD protocols, especially on a consumer scale, like your everyday smartphone does. Hence, the adoption of PQC is inevitable, as it will serve as a necessary backup to current encryption methods. PQC is important for the end-user!