%% You should probably cite draft-ietf-core-oscore-groupcomm-21 instead of this revision.
@techreport{ietf-core-oscore-groupcomm-01,
    number =    {draft-ietf-core-oscore-groupcomm-01},
    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-oscore-groupcomm/01/},
    author =    {Marco Tiloca and Göran Selander and Francesca Palombini and Jiye Park},
    title =     {{Secure group communication for CoAP}},
    pagetotal = 33,
    year =      2018,
    month =     mar,
    day =       5,
    abstract =  {This document describes a mode for protecting group communication over the Constrained Application Protocol (CoAP). The proposed mode relies on Object Security for Constrained RESTful Environments (OSCORE) and the CBOR Object Signing and Encryption (COSE) format. In particular, it is defined how OSCORE should be used in a group communication setting, while fulfilling the same security requirements for request messages and related response messages. Source authentication of all messages exchanged within the group is ensured, by means of digital signatures produced through private keys of sender endpoints and embedded in the protected CoAP messages.},
}