Compact TLS 1.3

Document Type Replaced Internet-Draft (candidate for tls WG)
Authors Eric Rescorla  , Richard Barnes  , Hannes Tschofenig 
Last updated 2020-03-09
Replaced by draft-ietf-tls-ctls
Stream IETF
Intended RFC status (None)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state Call For Adoption By WG Issued (wg milestone: Jul 2021 - Submit "Compact TLS ... )
Document shepherd No shepherd assigned
IESG IESG state Replaced by draft-ietf-tls-ctls
Consensus Boilerplate Unknown
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document specifies a "compact" version of TLS 1.3. It is isomorphic to TLS 1.3 but saves space by trimming obsolete material, tighter encoding, and a template-based specialization technique. cTLS is not directly interoperable with TLS 1.3, but it should eventually be possible for a cTLS/TLS 1.3 server to exist and successfully interoperate.


Eric Rescorla (
Richard Barnes (
Hannes Tschofenig (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)