Hedera has published its own thinking on post-quantum cryptography, and the more useful context is NIST’s actual standards work, since that’s what any credible migration plan has to build toward.
Why this is a real concern, not hype
Quantum computers capable of breaking current public-key cryptography don’t exist yet at the scale needed to threaten production blockchain networks. But the migration path away from vulnerable algorithms takes years to design, test, and roll out, which is why NIST has run a formal post-quantum cryptography standardization project for years and finalized its first three algorithm standards in 2024.
What NIST actually finalized
NIST’s finalized standards include FIPS 203 (ML-KEM, a key encapsulation mechanism), FIPS 204 (ML-DSA, a digital signature algorithm), and FIPS 205 (SLH-DSA, another signature scheme built on a different mathematical approach as a hedge). These are the reference standards any network claiming post-quantum readiness should be measured against, since NIST ran a multi-year public evaluation process specifically to stress-test candidate algorithms before finalizing them.
Where Hedera fits, and where the caveat matters
Hedera’s own writing on this topic discusses SHA-384 hashing and its broader cryptographic architecture in the context of post-quantum preparedness. That’s a legitimate part of the conversation: hash functions and signature schemes have different quantum vulnerability profiles, and a network’s current hashing algorithm is one piece of a much larger migration question. What it isn’t is a finished migration to NIST’s finalized post-quantum standards. Be careful with any blanket claim that a network, Hedera or otherwise, is “quantum-proof.” No major public network has completed a full transition to NIST’s post-quantum algorithms yet, and claiming otherwise misrepresents where the industry actually stands.
What to actually watch
The useful signal isn’t a blog post acknowledging the problem. It’s whether a network publishes a concrete migration roadmap referencing the specific NIST standards (FIPS 203, 204, 205), a timeline, and eventually, implementation. Track those specifics rather than general statements about taking quantum security seriously, which every major network now makes.
For the standards themselves, see NIST’s post-quantum cryptography project and the 2024 finalized standards release.
Educational only, not tax, legal, or investment advice. Check primary sources and speak with a qualified professional before making financial decisions.
