3 ms·
TXT handles this with a TPM that stores a key and has hardware to check that the proper instructions executed and signs an attestation to that fact with its key
by anologwintermut 13y ago
TXT handles this with a TPM that stores a key and has hardware to check that the proper instructions executed and signs an attestation to that fact with its key. SGX doesn't need a TPM. Does it possibly have similar hardware on die?
- sweis 13y agoSGX adds the ability to attest and seal individual enclaves, with a root attestation key in the CPU die: https://docs.google.com/file/d/0B_wHUJwViKDaSUV6aUcxR0dPejg/edit https://docs.google.com/file/d/0B_wHUJwViKDaSUV6aUcxR0dPejg/... This key has some similarities to a TPM EK / AIK, but rather than PCRs for the measurements they have a cryptographic log of the enclave.