- The World News | The Race To Avert Quantum Computing Threat With New Encryption Standards

The heart of the threat lies in a fundamental difference between classical and quantum computing. While classical computers process bits as either a 0 or a 1, quantum computers use qubits, which can exist in a superposition of both states simultaneously. This property, combined with quantum entanglement, allows a sufficiently powerful quantum computer to run algorithms that solve certain mathematical problems exponentially faster than any classical supercomputer. In 1994, mathematician Peter Shor developed an algorithm that, if run on a large-scale quantum computer, could efficiently factor large integers and compute discrete logarithms—the very mathematical problems underpinning RSA and ECC. As cryptographer Bruce Schneier famously warned, a CRQC would be able to “break all of the public-key cryptography we use today.” This means that an adversary with a quantum computer could decrypt past, present, and future encrypted communications, forge digital signatures, and undermine the authenticity of virtually every secure online system. The threat is so severe that intelligence agencies are already practicing “harvest now, decrypt later” strategies, storing vast troves of encrypted data with the expectation of cracking it once quantum computers mature.

Recognizing the gravity of the situation, the world’s leading standards bodies and cybersecurity agencies have launched a coordinated, albeit competitive, race to find a solution. The frontrunner in this effort is the U.S. National Institute of Standards and Technology (NIST), which began a rigorous, multi-year process in 2016 to solicit, evaluate, and standardize new post-quantum cryptographic algorithms. After several rounds of intense scrutiny from global cryptographers, NIST selected four primary algorithms in 2022—CRYSTALS-Kyber for general encryption and CRYSTALS-Dilithium, FALCON, and SPHINCS+ for digital signatures—with additional candidates under consideration. These algorithms are not based on factoring or discrete logarithms; instead, they rely on mathematical problems that appear to be hard for both classical and quantum computers, such as lattice-based cryptography, code-based cryptography, and hash-based signatures. In August 2024, NIST finalized these long-awaited standards (FIPS 203, 204, 205), marking a historic milestone. Simultaneously, other nations and regions, including China (with its own SM series and research into lattice-based crypto) and the European Union (via the PQCRYPTO project), are actively pursuing their own parallel tracks, creating a fragmented but globally aware race for quantum-resistant security. The heart of the threat lies in a

In the silent, invisible battlefields of cyberspace, the locks and keys securing the world’s digital infrastructure—from state secrets and banking transactions to personal medical records—are facing an unprecedented existential threat. For decades, the mathematical complexity of algorithms like RSA and ECC (Elliptic Curve Cryptography) has rendered conventional hacking impractical. However, the emergence of practical quantum computing threatens to render these digital locks obsolete overnight. This is not a distant science-fiction scenario; it is a countdown clock. In response, a quiet but furious global race is underway: the race to develop, standardize, and deploy new encryption standards capable of withstanding an attack from a quantum computer. This essay explores the nature of the quantum threat, the global effort to create post-quantum cryptography (PQC), and the immense challenges of transitioning the entire digital world before the inevitable arrival of the cryptographically relevant quantum computer (CRQC). In 1994, mathematician Peter Shor developed an algorithm