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Using excerpts from “Quantum Computing and Digital Sovereignty: Building Secure and Independent IT Infrastructures” by The Quantum Space, this podcast analyses the threat posed by quantum computing to European digital sovereignty and security, and what Europe’s strategic response should be.

Key Themes:

• The Quantum Threat: The imminent threat of quantum computers breaking current cryptographic systems (RSA, ECC, potentially weakening AES) using algorithms like Shor’s and Grover’s.
• Harvest Now, Decrypt Later (HNDL): Adversaries are currently collecting encrypted data with the intention of decrypting it once cryptographically relevant quantum computers (CRQCs) are available.
• Digital Sovereignty: The imperative for Europe to maintain control over its data, technology, and infrastructure, which is directly challenged by the quantum threat and reliance on foreign technology.
• Post-Quantum Cryptography (PQC): The development and implementation of new classical cryptographic algorithms resistant to quantum attacks as a primary solution.
• Quantum Communication (QKD): The use of quantum mechanics to securely share cryptographic keys, complementing PQC.
• European Strategic Response: Europe’s multi-faceted approach encompassing policy, investment, standardization, collaboration, and specific initiatives to address the quantum threat and enhance digital autonomy.
• Practical Strategies for Industry: Actionable steps for organisations to prepare for the quantum era.