CoRE Working Group

The Constrained Restful Environments (CoRE) Working Group is an IETF working that provides a framework for REST applications intended to run on constrained IP networks.

You can see the current drafts on the CoRE WG Github as well as join the mailing list to participate. Presentations, agendas and minutes from past meetings can be found in the WG Materials repository.

Upcoming Meetings

We will be having virtual interim meetings every other week starting from 2025-01-15 until IETF 122.

CoAP Implementations

There is a number of available implementations of CoAP.

Working Group Draft Repos

• attacks-on-coap - Editors’ Draft / WG Draft / Repo / Issues
• cf-reg-update - Editors’ Draft / WG Draft / Repo / Issues
• coap-dtls-alpn - Editors’ Draft / WG Draft / Repo / Issues
• coap-pm - Editors’ Draft / WG Draft / Repo / Issues
• coap-pubsub - Editors’ Draft / WG Draft / Repo / Issues
• cocoa - Editors’ Draft / WG Draft / Repo / Issues
• comi - Editors’ Draft / WG Draft / Repo / Issues
• conditional-attributes - Editors’ Draft / WG Draft / Repo / Issues
• coral - Editors’ Draft / WG Draft / Repo / Issues
• corr-clar - Editors’ Draft / WG Draft / Repo / Issues
• dns-over-coap - Editors’ Draft / WG Draft / Repo / Issues
• dynlink - Editors’ Draft / WG Draft / Repo / Issues
• fasor - Editors’ Draft / WG Draft / Repo / Issues
• groupcomm-bis - Editors’ Draft / WG Draft / Repo / Issues
• groupcomm-proxy - Editors’ Draft / WG Draft / Repo / Issues
• href - Editors’ Draft / WG Draft / Repo / Issues
• observe-multicast-notifications - Editors’ Draft / WG Draft / Repo / Issues
• oscore-capable-proxies - Editors’ Draft / WG Draft / Repo / Issues
• oscore-id-update - Editors’ Draft / WG Draft / Repo / Issues
• oscore-groupcomm - Editors’ Draft / WG Draft / Repo / Issues
• oscore-key-limits - Editors’ Draft / WG Draft / Repo / Issues
• oscore-key-update - Editors’ Draft / WG Draft / Repo / Issues
• rd-dns-sd - Editors’ Draft / WG Draft / Repo / Issues
• transport-indication - Editors’ Draft / WG Draft / Repo / Issues
• yang-library - Editors’ Draft / WG Draft / Repo / Issues

Working Group RFC Repos

• RFC 8132 etch - Editors’ Draft / WG Draft / Repo / Issues
• RFC 8323 coap-tcp-tls - Editors’ Draft / WG Draft / Repo / Issues
• RFC 8516 too-many-reqs - Editors’ Draft / WG Draft / Repo / Issues
• RFC 8613 oscore - Editors’ Draft / WG Draft / Repo / Issues
• RFC 8710 multipart-ct - Editors’ Draft / WG Draft / Repo / Issues
• RFC8768 hop-limit - Editors’ Draft / WG Draft / Repo / Issues
• RFC8790 senml-etch - Editors’ Draft / WG Draft / Repo / Issues
• RFC8798 senml-more-units - Editors’ Draft / WG Draft / Repo / Issues
• RFC8974 stateless - Editors’ Draft / WG Draft / Repo / Issues
• RFC9039 dev-urn - Editors’ Draft / WG Draft / Repo / Issues
• RFC9100 senml-versions - Editors’ Draft / WG Draft / Repo / Issues
• RFC9175 echo-request-tag - Editors’ Draft / WG Draft / Repo / Issues
• RFC9176 resource-directory - Editors’ Draft / WG Draft / Repo / Issues
• RFC9177 new-block - Editors’ Draft / WG Draft / Repo / Issues
• RFC9193 senml-data-ct - Editors’ Draft / WG Draft / Repo / Issues
• RFC9254 yang-cbor - Editors’ Draft / WG Draft / Repo / Issues
• RFC9290 problem-details - Editors’ Draft / WG Draft / Repo / Issues
• RFC9423 target-attr - Editors’ Draft / WG Draft / Repo / Issues
• RFC9595 sid - Editors’ Draft / WG Draft / Repo / Issues
• RFC9668 oscore-edhoc - Editors’ Draft / WG Draft / Repo / Issues

All CoRE WG RFCs

• Constrained RESTful Environments (CoRE) Link Format
• The Constrained Application Protocol (CoAP)
• Group Communication for CoAP
• Observing Resources in CoAP
• Block-Wise Transfers in CoAP
• Guidelines for Mapping Implementations: HTTP to CoAP
• PATCH and FETCH Methods for CoAP
• CoAP over TCP, TLS, and WebSockets
• Sensor Measurement Lists (SenML)
• “Too Many Requests” Response Code for CoAP
• Object Security for Constrained RESTful Environments (OSCORE)
• Multipart Content-Format for CoAP
• Constrained Application Protocol (CoAP) Hop-Limit Option
• FETCH and PATCH with Sensor Measurement Lists (SenML)
• Additional Units for Sensor Measurement Lists (SenML)
• Extended Tokens and Stateless Clients in the Constrained Application Protocol (CoAP)
• Uniform Resource Names for Device Identifiers
• Sensor Measurement Lists (SenML) Features and Versions
• Constrained Application Protocol (CoAP): Echo, Request-Tag, and Token Processing
• Constrained RESTful Environments (CoRE) Resource Directory
• Constrained Application Protocol (CoAP) Block-Wise Transfer Options Supporting Robust Transmission
• Sensor Measurement Lists (SenML) Fields for Indicating Data Value Content-Format
• Encoding of Data Modeled with YANG in the Concise Binary Object Representation (CBOR)
• Concise Problem Details for Constrained Application Protocol (CoAP) APIs
• Constrained RESTful Environments (CoRE) Target Attributes Registry
• YANG Schema Item iDentifier (YANG SID)
• Using Ephemeral Diffie-Hellman Over COSE (EDHOC) with the Constrained Application Protocol (CoAP) and Object Security for Constrained RESTful Environments (OSCORE)