Glossary · term161 of 202
root of trust
A hardware component that anchors a system's boot process and security guarantees, verified independently rather than relying on the software running above it. A chain of these from separate vendors makes it harder for any single party to fake the whole stack.
also written as roots of trust
Related terms
Private Cloud ComputeApple's server infrastructure for running AI requests too large for a phone, built so operators of the hardware cannot read the requests it processes. Every request passes an attestation check before a node is trusted with it.view termappend-only ledgerA record that can only be added to, never edited or deleted, used here to track every piece of approved hardware in a fleet so tampering or substitution is detectable.view termattestationA cryptographic check that proves a piece of hardware or software is exactly what it claims to be before it gets trusted with a request. A device refuses to send data to any node that fails the check.view termblackwell gpuNVIDIA's GPU architecture used in current-generation AI data centers, including confidential-computing features that keep workloads shielded from the cloud operator running the hardware.view termconfidential computingHardware-level encryption that keeps data unreadable even to the operator of the machine it runs on, including cloud providers. Chip vendors like NVIDIA and Intel ship their own versions of this on GPUs and CPUs.view termintel tdxIntel Trust Domain Extensions, a CPU feature that isolates a workload into an encrypted, hardware-protected region so even the machine's own operator cannot read it.view termtitan chipGoogle's custom security chip used to anchor a server's boot process, proving the machine is running verified firmware before it is trusted with sensitive work.view term
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- first used
- jul 2026
