Post-Quantum Cryptography: How Global Guidance is Taking Shape
Government guidance on post quantum cryptography (PQC) is moving from theory to detailed migration planning. In the last nine months, as highlighted by Zygmunt Łoziński of IBM Research via LinkedIn, countries including Australia, Canada, the EU, France, Germany, Israel, the Netherlands, New Zealand, the UK, and the US have refreshed their positions. A consensus is forming: plan now, migrate high priority systems by 2030 or 2031, and complete the transition by 2035 using NIST approved algorithms such as ML KEM and ML DSA, with the first three standards already finalised in August 2024 and a fourth on the way. These deadlines are critical when factoring in Q Day, the point at which quantum computers can break today’s public key encryption, and the harvest now, decrypt later risk it amplifies. If Q Day happens quietly in a confidential vacuum, the wider world may not realise it for some time. New Zealand has added PQC preparation to its national security manual, signalling that the shift is no longer optional.
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