I mentioned this in my talk on Quantum Computing at the PASS Data Community Summit: Microsoft has announced that the post-quantum cryptography APIs are now generally available.
If you’re not familiar with why this is important, with Quantum Computing appearing like it will become a usable reality within the next decade, it is likely that a particular algorithm, Shor’s Algorithm, will mean that RSA and elliptical curve cryptography (ECC) will be “broken.” Currently, much of public-private key cryptography (think SSL/TLS, certificates, digital signatures, as well as certificates and asymmetric keys within SQL Server) rely on these sets of cryptological algorithms. The post-quantum cryptographical algorithms are not susceptible to being broken and will end up replaces RSA and ECC.
The announcement indicates these APIs are now GA for Windows Server 2025, Windows 11 (24H2, 25H2), and .NET 10. It also indicates that post quantum cryptography (PQC) will be coming to Active Directory Certificates Services (ADCS) in early 2026. This means that private PKI utilizing ADCS will be able to begin issuing quantum safe certificates. There’s nothing out there yet about implementation into SQL Server, but I would think that we’d need to see it in the OS and .NET first.