OPERA is an Open Platform for Enclave Remote Attestation. It is an prototype implementation of the following paper:
[CCS'19]OPERA: Open Remote Attestation for Intel’s Secure Enclaves
Guoxing Chen, Yinqian Zhang, Ten-Hwang Lai
ACM Conference on Computer and Communications Security, London, UK, Nov. 2019.
For more details about this project, please go to OPERA Knowledge Base