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RFC 9954
Title: Hybrid Key Exchange in TLS 1.3
Author: D. Stebila,
S. Fluhrer,
S. Gueron
Status: Informational
Stream: IETF
Date: July 2026
Mailbox: [email protected],
[email protected],
[email protected]
Pages: 18
I-D Tag: draft-ietf-tls-hybrid-design-16
URL: https://www.rfc-editor.org/info/rfc9954
DOI: 10.17487/RFC9954
Hybrid key exchange refers to using multiple key exchange algorithms
simultaneously and combining the result with the goal of providing security
even if a way is found to defeat the encryption for all but one of the
component algorithms. It is motivated by the transition to post-quantum
cryptography. This document provides a construction for hybrid key exchange in
the Transport Layer Security (TLS) protocol version 1.3.
This document is a product of the Transport Layer Security Working Group of the
IETF.
INFORMATIONAL: This memo provides information for the Internet community.
It does not specify an Internet standard of any kind. Distribution of
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