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by MagicalTux
308 days ago
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The way this works is by generating a private key inside the enclave and having the CPU attest its public key. This allows generating a self signed TLS certificate that includes the attestation (under OID 1.3.6.1.4.1.311.105.1) and a client connecting verifying the TLS certificate not via the standard chain of trust, but by reading the attestion, verifying the attestation itself is valid (properly signed, matching measured values, etc) and verifying the containing TLS certificate is indeed signed with the attested key. Intel includes a number of details inside the attestation, the most important being intel's own signature of the attestation and chain of trust to their CA. |
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