At its recent Worldwide Developers Conference (WWDC25), Apple announced that its next major operating system releases for Mac and Windows, iOS 26, iPadOS 26, macOS Tahoe 26, and visionOS 26, will support negotiation of a quantum-secure key exchange algorithm with TLS 1.3 servers that support it. If a server does not yet support one of the quantum-secure exchange algorithms, the operating system will still maintain compatibility and use other key exchange algorithms. The next major operating system releases are expected to be made during Apple’s Fall product announcements expected in September. Apple did incorporate support last year for post-quantum cryptography (PQC) in its iMessage app and this next release will expand the support to external servers. You can view Apple’s notice about this upcoming support in its next operating system release here.
Microsoft has begun to integrate PQC support into its next version of Windows 11 and it is now available to early users in its Windows Insider program. They will be supporting ML-KEM which is a key encapsulation mechanism based upon the CRYSTALS-Kyber algorithm and also ML-DSA which is a digital signature algorithm based on CRYSTALS-Dilithium algorithm. Although the release date to the general public of this next version of Windows 11 hasn’t been determined yet, it is expected later this year. You can view an announcement from Microsoft announcing the availability of PQC to persons participating in the Windows Insider program here and also a previous article we wrote about the company’s PQC efforts here.
June 10, 2025
Leave A Comment