I am the assigned Gen-ART reviewer for this draft. The General Area Review Team (Gen-ART) reviews all IETF documents being processed by the IESG for the IETF Chair. Please treat these comments just like any other last call comments. For more information, please see the FAQ at . Document: draft-ietf-tls-tls13-cert-with-extern-psk-?? Reviewer: Ines Robles Review Date: 2019-12-02 IETF LC End Date: 2019-12-02 IESG Telechat date: Not scheduled for a telechat Summary: The document is well written. This document specifies a TLS 1.3 extension permitting certificate-based server authentication to be combined with an external PSK as an input to the TLS 1.3 key schedule. Major issues: Not found Minor issues: Not found Nits/editorial comments: I think that would be nice to add in IANA Considerations a table specifying the fields of the TLS ExtensionType Values indicated in https://www.iana.org/assignments/tls-extensiontype-values/tls-extensiontype-values.xhtml Thank you for this document, Ines.