Summary
The Launch Approver is independent of the remote attestation method.
Description
The Intel® SGX Commercial License table shows that a "Third party" Launch Approver can be used with a "Third-party attestation service" or the "Intel attestation service."
Does modifying the launch enclave allow use of Intel® SGX Attestation Service Utilizing Enhanced Privacy ID (EPID)?
Resolution
Modifying the launch enclave has no effect on the method of attestation. You can use either Elliptic Curve Digital Signature Algorithm (ECDSA) Attestation or Intel® Enhanced Privacy ID (Intel® EPID) Attestation with any launch approver.