Skip to main content

A DTLS Profile for the Internet of Things
draft-hartke-dice-profile-00

The information below is for an old version of the document.
Document Type
This is an older version of an Internet-Draft whose latest revision state is "Replaced".
Author Klaus Hartke
Last updated 2013-11-04
Replaced by draft-ietf-dice-profile, draft-ietf-dice-profile, draft-ietf-dice-profile, draft-ietf-dice-profile, RFC 7925
RFC stream (None)
Formats
Additional resources
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date (None)
Responsible AD (None)
Send notices to (None)
draft-hartke-dice-profile-00
DICE Working Group                                             K. Hartke
Internet-Draft                                                     Nokia
Intended status: Informational                         November 04, 2013
Expires: May 08, 2014

               A DTLS Profile for the Internet of Things
                      draft-hartke-dice-profile-00

Abstract

   This document defines a DTLS profile that is suitable for Internet of
   Things applications and is reasonably implementable on many
   constrained devices.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on May 08, 2014.

Copyright Notice

   Copyright (c) 2013 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Hartke                    Expires May 08, 2014                  [Page 1]
Internet-Draft  A DTLS Profile for the Internet of Things  November 2013

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Profile . . . . . . . . . . . . . . . . . . . . . . . . . . .   2
     2.1.  Applicability . . . . . . . . . . . . . . . . . . . . . .   2
     2.2.  Cipher Suites . . . . . . . . . . . . . . . . . . . . . .   2
     2.3.  Extensions  . . . . . . . . . . . . . . . . . . . . . . .   3
     2.4.  Other . . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Implementation Considerations . . . . . . . . . . . . . . . .   4
   4.  Privacy Considerations  . . . . . . . . . . . . . . . . . . .   4
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .   4
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   4
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   4
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   4
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .   4
     8.2.  Informative References  . . . . . . . . . . . . . . . . .   5
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .   6

1.  Introduction

   This document defines a DTLS 1.2 [RFC6347] profile that is suitable
   for Internet of Things applications and is reasonably implementable
   on many constrained devices.

   ...

2.  Profile

2.1.  Applicability

   o  Communication Model

   o  Threat Model

   o  Security Requirements

   o  Classes of Devices

   o  Trust Model

   o  ...

2.2.  Cipher Suites

   o  Specific Cipher Suite(s) -vs- Cryptographic Agility

   o  Server Authentication -vs- Mutual Authentication

Hartke                    Expires May 08, 2014                  [Page 2]
Internet-Draft  A DTLS Profile for the Internet of Things  November 2013

   o  X.509 Certificates -vs- Raw Public Keys -vs- Pre-Shared Keys

   o  Perfect Forward Secrecy

   o  ...

2.3.  Extensions

   o  Signature Algorithms [RFC5246]

   o  Server Name Indication [RFC6066]

   o  Maximum Fragment Length [RFC6066]

   o  Certificate Status Request [RFC6066]

   o  Truncated HMAC [RFC6066]

   o  Supported Elliptic Curves [RFC4492]

   o  Supported Point Formats [RFC4492]

   o  Application Layer Protocol [I-D.ietf-tls-applayerprotoneg]

   o  Cached Info [I-D.ietf-tls-cached-info]

   o  Session Resumption without Server-Side State [RFC5077]

   o  Snap Start [I-D.agl-tls-snapstart]

   o  Renegotiation Indication [RFC5746]

   o  Heartbeat [RFC6520]

   o  ...

2.4.  Other

   o  Compression

   o  Renegotiation -vs- Reconnection

   o  Session Resumption

   o  Replay Protection

   o  Timer Values

Hartke                    Expires May 08, 2014                  [Page 3]
Internet-Draft  A DTLS Profile for the Internet of Things  November 2013

   o  Certificate Revocation

   o  Encrypt-then-MAC [I-D.gutmann-tls-encrypt-then-mac]

   o  Hash Algorithm

   o  ...

3.  Implementation Considerations

   o  Version Negotiation [I-D.pettersen-tls-version-rollback-removal]
      [I-D.bmoeller-tls-downgrade-scsv]

   o  Upgrade from Server-Authenticated to Mutually-Authenticated

   o  Side Channels

   o  ...

4.  Privacy Considerations

   o  ...

5.  Security Considerations

   o  ...

6.  IANA Considerations

   o  ...

7.  Acknowledgements

   Thanks to Hannes Tschofenig, Sye Loong Keoh, and Rene Hummen for
   helpful comments and discussions that have shaped the document.

8.  References

8.1.  Normative References

   [I-D.ietf-tls-applayerprotoneg]
              Friedl, S., Popov, A., Langley, A., and S. Emile,
              "Transport Layer Security (TLS) Application Layer Protocol
              Negotiation Extension", draft-ietf-tls-applayerprotoneg-03
              (work in progress), October 2013.

   [I-D.ietf-tls-cached-info]

Hartke                    Expires May 08, 2014                  [Page 4]
Internet-Draft  A DTLS Profile for the Internet of Things  November 2013

              Santesson, S. and H. Tschofenig, "Transport Layer Security
              (TLS) Cached Information Extension", draft-ietf-tls-
              cached-info-15 (work in progress), October 2013.

   [RFC4492]  Blake-Wilson, S., Bolyard, N., Gupta, V., Hawk, C., and B.
              Moeller, "Elliptic Curve Cryptography (ECC) Cipher Suites
              for Transport Layer Security (TLS)", RFC 4492, May 2006.

   [RFC5077]  Salowey, J., Zhou, H., Eronen, P., and H. Tschofenig,
              "Transport Layer Security (TLS) Session Resumption without
              Server-Side State", RFC 5077, January 2008.

   [RFC5246]  Dierks, T. and E. Rescorla, "The Transport Layer Security
              (TLS) Protocol Version 1.2", RFC 5246, August 2008.

   [RFC5746]  Rescorla, E., Ray, M., Dispensa, S., and N. Oskov,
              "Transport Layer Security (TLS) Renegotiation Indication
              Extension", RFC 5746, February 2010.

   [RFC6066]  Eastlake, D., "Transport Layer Security (TLS) Extensions:
              Extension Definitions", RFC 6066, January 2011.

   [RFC6347]  Rescorla, E. and N. Modadugu, "Datagram Transport Layer
              Security Version 1.2", RFC 6347, January 2012.

   [RFC6520]  Seggelmann, R., Tuexen, M., and M. Williams, "Transport
              Layer Security (TLS) and Datagram Transport Layer Security
              (DTLS) Heartbeat Extension", RFC 6520, February 2012.

8.2.  Informative References

   [I-D.agl-tls-snapstart]
              Langley, A., "Transport Layer Security (TLS) Snap Start",
              draft-agl-tls-snapstart-00 (work in progress), June 2010.

   [I-D.bmoeller-tls-downgrade-scsv]
              Moeller, B., "TLS Signaling Cipher Suite Value (SCSV) for
              Preventing Protocol Downgrade Attacks", draft-bmoeller-
              tls-downgrade-scsv-00 (work in progress), September 2013.

   [I-D.greevenbosch-tls-ocsp-lite]
              Greevenbosch, B., "OCSP-lite - Revocation of raw public
              keys", draft-greevenbosch-tls-ocsp-lite-01 (work in
              progress), June 2013.

   [I-D.gutmann-tls-encrypt-then-mac]

Hartke                    Expires May 08, 2014                  [Page 5]
Internet-Draft  A DTLS Profile for the Internet of Things  November 2013

              Gutmann, P., "Encrypt-then-MAC for TLS and DTLS", draft-
              gutmann-tls-encrypt-then-mac-04 (work in progress),
              October 2013.

   [I-D.hummen-dtls-extended-session-resumption]
              Hummen, R., Gilger, J., and H. Shafagh, "Extended DTLS
              Session Resumption for Constrained Network Environments",
              draft-hummen-dtls-extended-session-resumption-01 (work in
              progress), October 2013.

   [I-D.ietf-lwig-tls-minimal]
              Kumar, S., Keoh, S., and H. Tschofenig, "A Hitchhiker's
              Guide to the (Datagram) Transport Layer Security Protocol
              for Smart Objects and Constrained Node Networks", draft-
              ietf-lwig-tls-minimal-00 (work in progress), September
              2013.

   [I-D.pettersen-tls-version-rollback-removal]
              Pettersen, Y., "Managing and removing automatic version
              rollback in TLS Clients", draft-pettersen-tls-version-
              rollback-removal-02 (work in progress), August 2013.

Author's Address

   Klaus Hartke
   Nokia
   Hermiankatu 12 D
   Tampere  FI-33720
   Finland

   Email: klaus.hartke@nokia.com

Hartke                    Expires May 08, 2014                  [Page 6]