London: TECHz – News Desk
The threat of “Q-Day” – the moment a mature quantum computer breaks today’s standard encryption – is accelerating. With advancements like Google’s use of artificial intelligence to optimize Shor’s algorithm, experts warn this cryptographic tipping point could arrive in just three years.
Furthermore, adversaries are already employing “Harvest Now, Decrypt Later” (HNDL) tactics, stealing encrypted data today to decrypt once quantum capabilities mature. In a major defensive milestone, the International Organization for Standardization (ISO) has officially included the Classic McEliece algorithm in its standard for Asymmetric Ciphers (ISO/IEC 18033-2). This allows organizations across ISO’s 177 member states to adopt a globally recognized, robust framework for quantum-safe security.
Pioneered by the UK-based cybersecurity firm Post-Quantum in collaboration with leading cryptographers, Classic McEliece is an open-source, ultra-secure solution. Building on a cryptosystem invented in 1978 by Prof. Robert McEliece, it uses intentionally inserted random errors and error-correcting codes to protect data.
Currently recognized as the most secure post-quantum cryptography (PQC) algorithm available, it has earned recommendations from national security bodies like Germany’s BSI. Its highly efficient ciphertext and reusable public key make it ideal for frequent ephemeral key establishment.
Classic McEliece is highly versatile across multiple security domains. It is instrumental in building quantum-safe VPNs to secure communications between users and critical infrastructure, such as data centers. It also plays a vital role in protecting data-in-transit with a long shelf life, including government secrets, intellectual property, and healthcare data. Additionally, the algorithm prevents interception in IoT and connected devices like drones and autonomous vehicles, while safeguarding secure identity systems to ensure biometric identifiers, mobile messaging, and passwords remain entirely uncompromised.
Battlefield-Ready: A Drone Deployment Milestone
Dispelling the myth that the algorithm’s large key size makes it impractical for real-world hardware, Post-Quantum recently partnered with Czech defense manufacturer STV Group.
Together, they successfully deployed the world’s first battlefield-ready, quantum-safe drones. Tested at STV’s weapons facility, the drones operated seamlessly in challenging DDIL (Denied, Degraded, Intermittent, or Limited) environments.
”Every major organization should now have progressed beyond planning to active implementation of quantum-safe encryption,” noted Rikky Hasan, CEO at Post-Quantum. “ISO standardization means Classic McEliece can be implemented more easily and consistently by governments and enterprises across the world. Our own work for NATO and STV demonstrates the algorithm’s viability for a wide range of use cases.”
Founded in 2009, Post-Quantum is a pioneer in post-quantum cryptography, developing modular software for Identity, Transmission, and Encryption. The company is a key contributor to the US NCCOE‘s quantum migration consortium, the original author of the IETF standard for a Hybrid Post-Quantum VPN, and works closely with defense organizations – including NATO – to secure critical communications against quantum attacks.


