rfc-9813
Operational Considerations for Using TLS Pre-Shared Keys (TLS-PSKs) with RADIUS
This document provides implementation and operational considerations for using TLS Pre-Shared Keys (TLS-PSKs) with RADIUS/TLS (RFC 6614) and RADIUS/DTLS (RFC 7360). The purpose of the document is to help smooth the operational transition from the use of RADIUS/UDP to RADIUS/TLS.
also
- bcp-243