Semi-Static Diffie-Hellman Key Establishment for TLS 1.3

Document Type Expired Internet-Draft (individual)
Authors Eric Rescorla  , Nick Sullivan 
Last updated 2018-09-06 (latest revision 2018-03-05)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


TLS 1.3 [I-D.ietf-tls-tls13] specifies a signed Diffie-Hellman exchange modelled after SIGMA [SIGMA]. This design is suitable for endpoints whose certified credential is a signing key, which is the common situation for current TLS servers. This document describes a mode of TLS 1.3 in which one or both endpoints have a certified DH key which is used to authenticate the exchange.


Eric Rescorla (
Nick Sullivan (

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