@techreport{keoh-tls-multicast-security-00,
    number =    {draft-keoh-tls-multicast-security-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-keoh-tls-multicast-security/00/},
    author =    {Sye Keoh and Sandeep Kumar and Esko Dijk},
    title =     {{DTLS-based Multicast Security for Low-Power and Lossy Networks (LLNs)}},
    pagetotal = 19,
    year =      2012,
    month =     oct,
    day =       15,
    abstract =  {Wireless IP-based systems will be increasingly used for building control systems in the future where wireless devices interconnect with each other, forming low-power and lossy networks (LLNs). The CoAP/6LoWPAN standards are emerging as the de-facto protocols in this area for resource-constrained devices. Both multicast and security are key needs in these networks. This draft presents a method for securing multicast communication in LLNs based on the DTLS security protocol which is already present in CoAP devices. This is achieved by using unicast DTLS-protected communication channel to distribute keying material and security parameters to group members. Group keys consisting of a Traffic Encryption Key (TEK) and a Traffic Authentication Key (TAK) are generated by group members based on the keying material received. A group member uses its DTLS record layer implementation to encrypt a multicast message and provide message authentication using the group keys before sending the message via IP multicast to the group.},
}