# Microsoft — Advancing hardware security with open-source Integrated HSM technology

- Company: Microsoft (microsoft.com)
- Announced: 2026-10-13T16:15:00+00:00
- Category: not stated
- Coverage: not counted
- Announcement: no
- Group: routine
- Source: https://azure.microsoft.com/en-us/blog/advancing-hardware-security-with-open-source-integrated-hsm-technology/
- Record: https://forck.live/items/22169-advancing-hardware-security-with-open-source-integrated-hsm-technology
- Subject: Azure AI
- Open weights: yes

Microsoft announced Project Tessera, an open-source evolution of its Azure Integrated Hardware Security Module (HSM), developed with Marvell, Oracle, and the Open Compute Project. The project makes the architecture, specifications, protocols, drivers, software, firmware, and reproducible build environments open source, with a goal of advancing toward a fully open-source silicon implementation. Tessera is designed to enforce FIPS 140-3 Level 3 key protection throughout the key lifecycle and address key management anti-patterns.

## Evidence

Verbatim from https://azure.microsoft.com/en-us/blog/advancing-hardware-security-with-open-source-integrated-hsm-technology/:

> Project Tessera carries forward the workload directly attached to the HSM architecture introduced by Azure Integrated HSM, making the architecture, specifications, protocols, drivers, software, firmware, and reproducible build environments open source for the broader community.

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