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What will prevent the GPU from disabling itself when it can't reach to the servers for attestation? NVIDIA's GPUs have encrypted firmware, signing keys baked in
by bayindirh 11mo ago
What will prevent the GPU from disabling itself when it can't reach to the servers for attestation? NVIDIA's GPUs have encrypted firmware, signing keys baked into the silicon and a RISC-V processor on-board. It can ask the driver to attest, and can stop working when the attestation time outs.
Also, remember, the driver's kernel module is gutted and moved to the card itself. Hence while GL drivers and other parts are also closed source, driver core is on the card and sitting there encrypted. Also, this feature uses the secure enclave on the card, dubbed confidential computing capability.
NVIDIA's cards are computers inside computers now, and they'll not stop just because their packets are dropped by a pesky iptables rule.