The principle (in theory) of SGX remote attestation is that you can verify that a specific value (e.g. a cryptographic key) has been produced in an enclave running a specified code. The attestation that this code is running in the enclave is called a 'quote' and is signed with a key unique to that CPU. You can then use Intel's attestation service to verify its a genuine enclave.
There are lots of caveats to this though, and you must trust intel (and also there are privacy issues using intel's service).
The principle (in theory) of SGX remote attestation is that you can verify that a specific value (e.g. a cryptographic key) has been produced in an enclave running a specified code. The attestation that this code is running in the enclave is called a 'quote' and is signed with a key unique to that CPU. You can then use Intel's attestation service to verify its a genuine enclave.
There are lots of caveats to this though, and you must trust intel (and also there are privacy issues using intel's service).