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Curve25519 and Curve448 for Transport Layer Security (TLS)

Document Type Expired Internet-Draft (tls WG)
Expired & archived
Authors Simon Josefsson , Manuel Pégourié-Gonnard
Last updated 2016-01-07 (Latest revision 2015-07-06)
Replaces draft-josefsson-tls-curve25519
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Additional resources Mailing list discussion
Stream WG state WG Document
Document shepherd Joseph A. Salowey
IESG IESG state Expired
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This document specifies the use of Curve25519 and Curve448 for ephemeral key exchange in the Transport Layer Security (TLS) and Datagram TLS (DTLS) protocols. It updates RFC 5246 (TLS 1.2) and RFC 4492 (Elliptic Curve Cryptography for TLS).


Simon Josefsson
Manuel Pégourié-Gonnard

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