Summary

Recommendation ITU-T F.751.9 specifies a trusted execution environment based confidential computing on distributed ledger technology systems. In addition, this Recommendation:

–           decomposes users' confidentiality demand into concrete requirements for each step during distributed ledger technology (DLT) service utilization;

–           analyses detailed security requirements and technical requirements of trusted execution environment based confidential computing to guarantee confidentiality in the life cycle of a transaction from end to end;

–           addresses the framework of trusted execution environment based confidential computing, as well as detailed procedures to realize security requirements and technical requirements.