A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : DTLS-based Multicast Security for Low-Power and Lossy Networks (LLNs)
Author(s) : Sye Loong Keoh
Sandeep S. Kumar
Esko Dijk
Filename : draft-keoh-tls-multicast-security-00.txt
Pages : 19
Date : 2012-10-15
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.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-keoh-tls-multicast-security
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-keoh-tls-multicast-security-00
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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