Hardware root of trust

What is device identity?

A device identifier names a device. Cryptographic identity lets a device prove possession of a key. Dynamic PUF provides the physical foundation for recovering device-specific root keys.

PUF: the hardware root

Microscopic differences in manufactured transistors and wiring create device-specific electrical behavior. IIST measures a logic-based PUF cell and maps its response into stable and changing digital states.

No permanent root-key storage

Recover root keys when required using the physical entropy source and associated checkpoint data.

ACC recovery

Independent trust domains

Give system, firmware, maintenance, OEM and applications separate cryptographic roots.

Multiple roots of trust

From silicon identity to a trusted system.

Device authentication also needs protocols, credential management and verification policies. IIST works with your team to connect the PUF foundation to your product architecture.

PUF and post-quantum cryptography

PUF anchors keys in hardware; post-quantum cryptography addresses algorithms. They serve complementary roles. PQC support depends on the selected platform and implementation.

PUF, PQC and zero trust.

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Tell us what you are securing. We will map the right path from evaluation hardware to customized silicon IP.