Google sets internal PQC migration deadline to 2029, says authentication is the priority

[Demi-Q]

Google's security blog laid out its post quantum cryptography timeline back in March and the message is sharper than anything from the cloud providers so far. Full PQC migration across all services by 2029, with authentication services prioritised because of the harvest now decrypt later threat model. Chrome has had ML-KEM hybrid key exchange enabled by default since version 124.

What is interesting is the explicit shift in threat modelling. They are now treating digital signature migration as a hard prerequisite before any cryptographically relevant quantum computer arrives, not after. Android 17 is integrating ML-DSA signature protection in line with the NIST standards.

This matters because Google is one of the few players big enough to actually drag the rest of the ecosystem along. AWS already supports ML-KEM in KMS, Microsoft has SymCrypt updated, and the CNSA 2.0 January 2027 deadline for new federal acquisitions is now twenty months out. If you have not started your inventory yet, you are properly behind

Quantum frontiers may be closer than they appearblog.google

[BigDog]

2029 is aggressive but they have the engineering bench to actually pull it off

[JohnyBlue]

Meanwhile half the banking sector is still running TLS 1.2 with RSA-2048 and nobody seems concerned

[Undertaker]

The HNDL threat is the part everyone hand waves away and it is genuinely the worst part of all this

[Leo29]

Hybrid key exchange is the right call, anyone going pure ML-KEM is asking for a Kyber implementation bug to ruin their year

[IronFist56]

Anyone got real numbers on the performance hit from ML-KEM versus X25519

[ElPresidente]

About a 1ms handshake overhead in most cases, payload size is the bigger issue for embedded

[GlassKnight89]

Authentication first makes sense, the signature migration is the long pole

[SlowSocket]

My company is still doing the cryptographic inventory phase and we started in 2024, this stuff is brutal

[Jan79]

Cloudflare already moved their deadline up to 2029 after the Oratomic paper dropped, this is the new consensus

[VB]

Will be wild looking back at this in five years and seeing who actually hit their dates

[Coastal Otter]

Pqc is this like pqc chips eg laes/ensi??