SPOTLIGHT: Post-quantum cryptography, encryption and securing Australia's defence networks, with Senetas' Julian Fay and Andrew Wilson

How is quantum computing changing the cyber security threat landscape, and what must Australian defence do to protect sensitive communications networks against emerging threats? Speaking with Defence Connect news editor Robert Dougherty, Senetas co-founder and chief technology officer Julian Fay and CEO Andrew Wilson discuss the growing urgency of post-quantum cryptography, emerging quantum computing threats and the need to prepare Australia's defence networks for the next generation of cyber warfare.

The conversation explores the potential for quantum computers to undermine existing encryption systems, including "harvest now, decrypt later" attacks, where adversaries capture sensitive communications today for potential decryption in the future.

Fay and Wilson examine the Australian Signals Directorate's transition milestones for post-quantum cryptography, including the migration of critical systems by the end of 2028 and the removal of traditional asymmetric cryptography by 2030. They warn that lengthy procurement cycles mean Defence and industry must begin planning and upgrading their systems now.

The discussion also explores the technical and financial challenges of transitioning to quantum-resistant encryption, including hybrid encryption approaches, independent certification, legacy hardware and the importance of field-upgradable systems.

Looking ahead, Wilson discusses the importance of sovereign encryption capabilities, Australian-controlled technology and secure communications infrastructure.

Enjoy the podcast, The Defence Connect Spotlight team