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RFC 9528: Ephemeral Diffie-Hellman Over COSE (EDHOC)

In plain English — editorial summary, not part of the RFC

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, forward secrecy, and identity protection. EDHOC is intended for usage in constrained scenarios, and a main use case is to establish an Object Security for Constrained RESTful Environments (OSCORE) security context. By reusing CBOR Object Signing and Encryption (COSE) for cryptography, Concise Binary Object Representation (CBOR) for encoding, and Constrained Application Protocol (CoAP) for transport, the additional code size can be kept very low.

Document record

Document ID
RFC9528
Published
March 2024
Authors
G. Selander; J. Preuß Mattsson; F. Palombini
Status
PROPOSED STANDARD
Stream
IETF
Area
sec
Pages
82
Also known as
—

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The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.

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canonical URL: /rfc/9528-ephemeral-diffie-hellman-over-cose-edhoc