PUFsecurity's PUFrt Wins OCP S.A.F.E. Approval for AI Data Center Chips

Spotlight at the Caliptra Workshop

According to PUFsecurity, the company was spotlighted at Microsoft's Caliptra Workshop on October 12, the opening day of the sold-out 2026 OCP Global Summit. The workshop drew nearly 400 attendees.

PUFsecurity Principal Security Architect Kent Chuang gave a talk titled "Caliptra Specification to Silicon Reality & a Turnkey Solution for Ecosystem Integrations." He described how PUFrt helps bring the open-source Caliptra specification into production-ready silicon for AI data centers, according to the company.

What PUFrt does within Caliptra

Caliptra is an open-source hardware Root-of-Trust architecture developed under the Open Compute Project (OCP). It is designed to give every chip in cloud servers a verifiable identity and a trusted boot path. PUFsecurity argues that as AI infrastructure expands rapidly, every chip in a data center needs such an identity, and that Caliptra is becoming the standard for establishing this trust.

PUFrt is positioned as the physical security foundation beneath that architecture, covering everything from key generation to chip mass-production testing. The company says this secures the supply chain and enables large-scale deployment across the ecosystem. The product combines three elements:

• eMemory's NeoPUF technology, which generates chip-specific Unique Device Secrets (UDS)
• NeoFuse anti-fuse One-Time Programmable (OTP) memory for on-chip data storage
• an entropy source compliant with NIST SP 800-90B standards

As an early adopter of Caliptra, PUFrt has been integrated into Caliptra products from ASPEED, a provider of server management chips (BMC/SMC). It has also been used in security systems from several major memory manufacturers and in networking-related chips, according to PUFsecurity.

Scope 3 assessment of physical attack resistance

PUFrt completed its OCP S.A.F.E. Scope 3 assessment in 2026. The review focused on the ability to resist physical threats, including fault injection and side-channel attacks. The OCP S.A.F.E. program offers an industry-wide, standardized and independent security review framework for hardware and software, which is meant to spare customers from repeating security assessments.

PUFsecurity stresses that physical attack resistance is especially important for silicon Roots of Trust, because the cryptographic keys and device secrets they protect underpin higher-level security functions.

Support for Caliptra 1.x and 2.x and what it means for chip designers

The company says PUFrt now fully supports Caliptra 1.x and 2.x silicon IP requirements on advanced process nodes. Through its "One-Stop-Shop Service," chip design teams can access a pre-validated solution that integrates Caliptra and PUFrt. It covers verification, certification support and end-to-end engineering guidance, which PUFsecurity says significantly shortens the development-to-mass-production timeline.

PUFsecurity also frames the news in the context of Agentic AI workloads capable of autonomous decision-making. In its view, data center security architectures are moving quickly from proprietary, closed systems toward standardized, open-source ones such as Caliptra.

For chip and system designers building on Caliptra, the independent approval and the OCP Marketplace listing give a vetted option for the physical security layer. The claims about the timeline and the market direction come from PUFsecurity itself.