A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : DTLS Relay for Constrained Environments
Authors : Sandeep S. Kumar
Sye Loong Keoh
Oscar Garcia-Morchon
Filename : draft-kumar-dice-dtls-relay-02.txt
Pages : 13
Date : 2014-10-20
Abstract:
The 6LoWPAN and CoAP standards defined for resource-constrained
devices are fast emerging as the de-facto protocols for enabling the
Internet-of-Things (IoTs). Security is an important concern in IoTs
and the DTLS protocol has been chosen as the preferred method for
securing CoAP messages. DTLS is a point-to-point protocol relying on
IP routing to deliver messages between the client and the server.
However in some low-power lossy networks (LLNs) with multi-hop, a new
"joining" device may not be initially IP-routable. Moreover, it
exists in a separate, unauthenticated domain at the point of first
contact and therefore cannot be initially trusted. This puts
limitations on the ability to use DTLS as an authentication and
confidentiality protocol at this stage. These devices being
Resource-constrained often cannot accommodate more than one security
protocol in their code memory. To overcome this problem we suggest
DTLS as the single protocol and therefore, we present a DTLS Relay
solution for the non-IP routable "joining" device to enable it to
establish a secure DTLS connection with a DTLS Server. Furthermore
we present a stateful and stateless mode of operation for the DTLS
Relay.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-kumar-dice-dtls-relay/
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-kumar-dice-dtls-relay-02
A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-kumar-dice-dtls-relay-02
Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.
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ftp://ftp.ietf.org/internet-drafts/
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