Quantum-safe cryptography for constrained devices

Cavero Quantum is a UK-based cryptography company focused on bringing post-quantum security to the devices that standard algorithms cannot reach. Its software-based approach targets resource-constrained environments such as SIM cards, embedded systems, IoT sensors, and legacy hardware, protecting them against both classical attacks and the coming generation of quantum computing threats without requiring specialized hardware.

The company's core products are Symmetrikey, a lightweight key exchange technology proven to run on SIM cards and embedded devices, and Authentikey, a continuous trust verification protocol for quantum-safe endpoint authentication. These are delivered alongside the Cavero cryptographic library and designed to be crypto-agile, interoperating with algorithms such as ML-KEM and ECDH so organizations can migrate networks to quantum-safe cryptography incrementally rather than in a single disruptive cutover.

Cavero Quantum positions itself as a pioneer in post-quantum cryptography for constrained devices, a space where standard NIST-compliant algorithms are often too computationally heavy to deploy. Serving telecoms, industrial IoT, defense, financial services, and government customers, its differentiator is turning security from a pure cost center into a source of value by enabling new secure products and services on hardware that would otherwise be left unprotected.