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Technology / Privacy & Security

Microsoft adds hybrid post-quantum encryption to Azure Front Door

The update protects supported client connections, not yet the separate link to back-end services.

Status: source-checked.

Microsoft said Friday that Azure Front Door now supports hybrid post-quantum key establishment for incoming TLS 1.3 connections. The system combines classical elliptic-curve cryptography with the standardized ML-KEM method.

The feature is enabled by default, according to Microsoft. Connections use a hybrid group when the client supports it, with classical fallback available for compatibility.

The protection currently covers the connection between a client and Front Door’s edge, the company said. Extending it to the separate connections to Azure services remains a later engineering phase.

What we know / what we don't

What we know

  • Microsoft said Friday that Azure Front Door now supports hybrid post-quantum key establishment for incoming TLS 1.3 connections. The system combines classical elliptic-curve cryptography with the standardized ML-KEM method.
  • The feature is enabled by default, according to Microsoft. Connections use a hybrid group when the client supports it, with classical fallback available for compatibility.
  • The protection currently covers the connection between a client and Front Door’s edge, the company said. Extending it to the separate connections to Azure services remains a later engineering phase.

What we don't know

  • Deployment and performance statements are from Microsoft; no independent security assessment was reviewed.

The source record

Sources

  1. Microsoft technical announcement