RFC 9849 · PROPOSED STANDARD · 2026
MON · 27 JUL 2026
TLS Encrypted Client Hello
Overview
RFC 9849, “TLS Encrypted Client Hello”, is a Proposed Standard document published in March 2026 by E. Rescorla, K. Oku, N. Sullivan, C. A. Wood. The canonical text is published by the RFC Editor.
Abstract
This document describes a mechanism in Transport Layer Security (TLS) for encrypting a message under a server public key.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
Read this RFC
The canonical text of RFC 9849 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
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