%% You should probably cite draft-ietf-core-groupcomm-bis-10 instead of this revision. @techreport{ietf-core-groupcomm-bis-04, number = {draft-ietf-core-groupcomm-bis-04}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-ietf-core-groupcomm-bis/04/}, author = {Esko Dijk and Chonggang Wang and Marco Tiloca}, title = {{Group Communication for the Constrained Application Protocol (CoAP)}}, pagetotal = 60, year = 2021, month = jul, day = 12, abstract = {This document specifies the use of the Constrained Application Protocol (CoAP) for group communication, including the use of UDP/IP multicast as the default underlying data transport. Both unsecured and secured CoAP group communication are specified. Security is achieved by use of the Group Object Security for Constrained RESTful Environments (Group OSCORE) protocol. The target application area of this specification is any group communication use cases that involve resource-constrained devices or networks that support CoAP. This document replaces RFC7390, while it updates RFC7252 and RFC7641.}, }