A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Fine-grained Support of Security Services for Constrained Devices using DTLS
Authors : Jaeduck Choi
Gunhee Lee
Namhi Kang
Seungwook Jung
Souhwan Jung
Filename : draft-choi-dice-finegrained-dtls-security-01.txt
Pages : 11
Date : 2015-03-24
Abstract:
This document proposes a method that can selectively apply
application data encryption to the DTLS record layer. The CoAP used
for resource-constrained devices defines the use of DTLS as a basic
security mechanism, and CoAP standard specifies the use of AES_CCM
that provides data integrity and confidentiality as a cipher suite
for DTLS. However, not all CoAP messages require both data integrity
and confidentiality. For example, in case of CoAP messages that
include information for turning a light off at home or in a building,
or simple ACK information, encryption might not be necessary because
such information might not be useful to attackers. Furthermore, from
the perspective of effective resource use of resource-constrained
devices, reducing the computation load required to perform data
encryption every time is necessary. This document describes the
methods for CoAP nodes to establish DTLS security channels using the
AES_CCM cipher suite, and to selectively apply the encryption
function in the DTLS record layer by considering sensitivity to
application data leakage.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-choi-dice-finegrained-dtls-security/
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-choi-dice-finegrained-dtls-security-01
A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-choi-dice-finegrained-dtls-security-01
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.
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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