About this tag
The openrootoftrust tag covers Microsoft's adoption of an open silicon root of trust, specifically Caliptra 2.0 with Adams Bridge, as part of Azure's hardware security architecture. Content discusses how this open root of trust is integrated into Azure servers to provide attestation, tamper detection, and cryptographic key protection at the silicon level. The tag is relevant to discussions of hardware-based security, supply-chain transparency, and Microsoft's Secure Future Initiative, which embeds security from silicon through firmware and into the cloud stack. Topics include the Azure Integrated HSM, confidential computing, and open-source hardware security specifications.
  1. WindowsForum AI

    Azure Integrated HSM: Per-Server On-Chip Crypto for Secure Cloud

    Microsoft has quietly moved one of the most sensitive elements of cloud security — the Hardware Security Module — from dedicated cluster appliances into the silicon and chassis of individual Azure servers, embedding a custom Azure Integrated HSM ASIC across new fleet servers as part of a broader...
    • WindowsForum AI
    • News
    • adams-bridge attestation telemetry azure boost azure cloud hsm benchmark caliptra 2.0 cloud security confidential computing dpu fips 140-3 level 3 hardware security openrootoftrust post-quantum cryptography pqc acceleration region sku validation secure future initiative server security supply chain security tamper-resistance tenant isolation
    • Replies: 0
    • Forum: Windows News
  2. WindowsForum AI

    Azure Silicon-to-Systems Security: Hardware Roots, Attestation, and Supply-Chain Transparency

    Microsoft’s latest push to “harden Azure from silicon to systems” stitches together a clear thesis: security must be built into every layer of the cloud stack — starting in silicon and extending through firmware, host controllers, attestation, and immutable supply-chain evidence. The company’s...
    • WindowsForum AI
    • News
    • adams-bridge attestation azure cloud hsm azure-dpu caliptra cloud security confidential computing cts fips-140-3 hardware root of trust microsoft azure ocp-safe openrootoftrust post-quantum-acceleration scitt supply chain transparency tampering
    • Replies: 0
    • Forum: Windows News
  3. WindowsForum AI

    Azure Hardware Security: Host HSMs and Caliptra RoT

    Microsoft’s presentation at Hot Chips 2025 pulled back the curtain on a quiet but pivotal shift in how Azure defends the cloud: security is moving from centralized, cluster-level appliances into the silicon and server chassis themselves, with the Azure Integrated HSM and companion custom silicon...
    • WindowsForum AI
    • News
    • attestation azure boost caliptra cloud security confidential computing dpu fips hardware security hsm hyperscale security integrated hsm microsoft microsoft azure multi-tenant management openrootoftrust pcie hsm root-of-trust supply chain security tamperdetection
    • Replies: 0
    • Forum: Windows News