Skip to main content

Ephemeral Diffie-Hellman Over COSE (EDHOC)

Document Type Replaced Internet-Draft (individual)
Expired & archived
Authors Göran Selander , John Preuß Mattsson , Francesca Palombini
Last updated 2019-09-11
Replaced by draft-selander-lake-edhoc
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Replaced by draft-selander-lake-edhoc
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This Internet-Draft is no longer active.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 Ephemeral Diffie-Hellman Over COSE (EDHOC), a very compact, and lightweight authenticated Diffie-Hellman key exchange with ephemeral keys. EDHOC provides mutual authentication, perfect forward secrecy, and identity protection. EDHOC is intended for usage in constrained scenarios and a main use case is to establish an OSCORE security context. By reusing COSE for cryptography, CBOR for encoding, and CoAP for transport, the additional code footprint can be kept very low.


Göran Selander
John Preuß Mattsson
Francesca Palombini

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