Post-Quantum Cryptography set to revolutionise digital security

Post-Quantum Cryptography (PQC) is poised to redefine the very foundation of digital security by addressing threats posed by advancements in quantum computing. Recently, the National Institute of Standards and Technology (NIST) finalised a principal set of encryption algorithms designed to withstand cyberattacks from quantum computers. This significant step prompts organisations to reconsider their approaches to cybersecurity.

According to the Australian Signals Directorate (ASD), which monitors NIST developments to inform Australian standards, PQC is dedicated to creating and analysing cryptographic algorithms that derive their security from mathematical problems that are challenging for both classical and quantum computers to solve. The ASD describes PQC as offering a low-cost, practical path to maintaining secure communications.

Thales, a key player in this field, emphasises the importance of transitioning to PQC. Todd Moore, Global VP of Encryption for Thales, commented on the development, stating, "This week's release of the new PQC standards from NIST is a watershed moment in the history of cryptography, one that Thales has been proudly participating in and preparing for over the past decade."

Moore further noted the urgency for organisations to secure their data and infrastructure using these new standards. He highlighted the risk of "Harvest Now, Decrypt Later" attacks, where cybercriminals steal and store data with the intent of decrypting it once quantum computing capabilities become available. "It is essential that organisations prepare immediately for this unprecedented cryptographic transformation by adopting crypto agile solutions that support these new quantum-safe algorithms," Moore urged.

Thales researchers have been central to preparing for the quantum revolution and developing the next generation of quantum solutions. This research can broadly be categorised into three areas: quantum sensors, quantum communications, and Post-Quantum Cryptography.

Quantum sensors, based on the principles of quantum mechanics, enhance our capacity to understand and interact with our environment. They offer more efficient and accurate sensing capabilities, impacting industries ranging from medical devices to defence systems.

Quantum communications are set to revolutionise digital communications by securing them with quantum-safe cryptographic keys. This technology promises secure communications across large-scale networks and the future Internet.

PQC is crucial for ensuring a smooth transition from current cryptographic algorithms to quantum-resistant ones. Thales focuses on developing flexible, upgradeable solutions that support both classic and emerging quantum-resistant crypto standards. The company urges organisations to proactively engage with these advancements to be prepared for the quantum leap.