[core] RFC 9668 on Using Ephemeral Diffie-Hellman Over COSE (EDHOC) with the Constrained Application Protocol (CoAP) and Object Security for Constrained RESTful Environments (OSCORE)

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        RFC 9668

        Title:      Using Ephemeral Diffie-Hellman Over COSE (EDHOC)
                    with the Constrained Application Protocol (CoAP) 
                    and Object Security for Constrained 
                    RESTful Environments (OSCORE) 
        Author:     F. Palombini,
                    M. Tiloca,
                    R. Höglund,
                    S. Hristozov,
                    G. Selander
        Status:     Standards Track
        Stream:     IETF
        Date:       November 2024
        Mailbox:    francesca.palombini@ericsson.com,
                    marco.tiloca@ri.se,
                    rikard.hoglund@ri.se,
                    stefan.hristozov@eriptic.com,
                    goran.selander@ericsson.com
        Pages:      23
        Updates/Obsoletes/SeeAlso:   None

        I-D Tag:    draft-ietf-core-oscore-edhoc-11.txt

        URL:        https://www.rfc-editor.org/info/rfc9668

        DOI:        10.17487/RFC9668

The lightweight authenticated key exchange protocol Ephemeral
Diffie-Hellman Over COSE (EDHOC) can be run over the Constrained
Application Protocol (CoAP) and used by two peers to establish a
Security Context for the security protocol Object Security for
Constrained RESTful Environments (OSCORE). This document details this
use of the EDHOC protocol by specifying a number of additional and
optional mechanisms, including an optimization approach for combining
the execution of EDHOC with the first OSCORE transaction. This
combination reduces the number of round trips required to set up an
OSCORE Security Context and to complete an OSCORE transaction using
that Security Context.

This document is a product of the Constrained RESTful Environments Working Group of the IETF.

This is now a Proposed Standard.

STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements.  Please refer to the current edition of the Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the 
standardization state and status of this protocol.  Distribution of this 
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