Curve25519 for ephemeral key exchange in Transport Layer Security (TLS)

Document Type Replaced Internet-Draft (individual)
Authors Simon Josefsson  , Manuel Pégourié-Gonnard 
Last updated 2015-03-23 (latest revision 2014-09-11)
Replaced by draft-ietf-tls-curve25519
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Expired & archived
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IESG IESG state Replaced by draft-ietf-tls-curve25519
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document specifies the use of Curve25519 for ephemeral key exchange in the Transport Layer Security (TLS) protocol, as well as its DTLS variant. 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.)