Demystifying ML-KEM and Post-Quantum Cryptography

## Introduction Quantum computing poses an existential threat to modern asymmetric cryptography. Algorithms like RSA and ECC rely on mathematical problems—such as integer factorization and discrete logarithms—that quantum algorithms like Shor's can solve exponentially faster than classical computers. ## Enter Lattice-Based Cryptography To safeguard digital infrastructure, the National Institute of Standards and Technology (NIST) selected lattice-based cryptographic algorithms as the primary standard for post-quantum key encapsulation. ML-KEM (Module-Lattice-Based Key-Encapsulation Mechanism) is at the forefront of this transition. ### Why Lattices? Lattice problems involve multi-dimensional grids of points. Finding the shortest vector in a high-dimensional lattice is believed to be exceptionally difficult for both classical and quantum computers. ## Preparing Your Infrastructure Organizations must inventory their cryptographic assets today. Implementing cryptographic agility allows systems to transition smoothly from legacy ciphers to post-quantum hybrids without requiring major application rewrites.