6TiSCH Working Group M. Richardson
Internet-Draft Sandelman Software Works
Intended status: Standards Track February 24, 2017
Expires: August 28, 2017

Minimal Security rekeying mechanism for 6TiSCH
draft-richardson-6tisch-minimal-rekey-00

Abstract

This draft describes a mechanism to rekey the networks used by 6TISCH nodes. It leverages the security association created during an enrollment protocol. The rekey mechanism permits incremental deployment of new sets of keys, followed by a rollover to a new key.

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/.

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This Internet-Draft will expire on August 28, 2017.

Copyright Notice

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Table of Contents

1. Introduction

2. Terminology

The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in [RFC2119]. These words may also appear in this document in lowercase, absent their normative meanings.

The reader is expected to be familiar with the terms and concepts defined in [I-D.ietf-6tisch-terminology], [RFC7252], [I-D.ietf-core-object-security], and [I-D.ietf-anima-bootstrapping-keyinfra].

3. An approach to rekeying

TBD

4. A YANG model for keys

It optionally also contains an IEEE 802.15.4 short-address [IEEE8021542015] assigned to pledge by JRC.

5. Rekey of master connection

TBD

6. Privacy Considerations

TBD

7. Security Considerations

TBD

8. IANA Considerations

This document allocates a SID number for the YANG model. There is no IANA action required for this document.

9. Acknowledgments

10. References

10.1. Normative References

[I-D.ietf-core-object-security] Selander, G., Mattsson, J., Palombini, F. and L. Seitz, "Object Security of CoAP (OSCOAP)", Internet-Draft draft-ietf-core-object-security-01, December 2016.
[I-D.ietf-cose-msg] Schaad, J., "CBOR Object Signing and Encryption (COSE)", Internet-Draft draft-ietf-cose-msg-24, November 2016.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, DOI 10.17487/RFC2119, March 1997.
[RFC7049] Bormann, C. and P. Hoffman, "Concise Binary Object Representation (CBOR)", RFC 7049, DOI 10.17487/RFC7049, October 2013.
[RFC7252] Shelby, Z., Hartke, K. and C. Bormann, "The Constrained Application Protocol (CoAP)", RFC 7252, DOI 10.17487/RFC7252, June 2014.

10.2. Informative References

[I-D.ietf-6tisch-6top-protocol] Wang, Q. and X. Vilajosana, "6top Protocol (6P)", Internet-Draft draft-ietf-6tisch-6top-protocol-03, October 2016.
[I-D.ietf-6tisch-dtsecurity-secure-join] Richardson, M., "6tisch Secure Join protocol", Internet-Draft draft-ietf-6tisch-dtsecurity-secure-join-00, December 2016.
[I-D.ietf-6tisch-minimal-security] Vucinic, M., Simon, J. and K. Pister, "Minimal Security Framework for 6TiSCH", Internet-Draft draft-ietf-6tisch-minimal-security-01, February 2017.
[I-D.ietf-6tisch-terminology] Palattella, M., Thubert, P., Watteyne, T. and Q. Wang, "Terminology in IPv6 over the TSCH mode of IEEE 802.15.4e", Internet-Draft draft-ietf-6tisch-terminology-08, December 2016.
[I-D.ietf-anima-bootstrapping-keyinfra] Pritikin, M., Richardson, M., Behringer, M., Bjarnason, S. and K. Watsen, "Bootstrapping Remote Secure Key Infrastructures (BRSKI)", Internet-Draft draft-ietf-anima-bootstrapping-keyinfra-04, October 2016.
[IEEE8021542015] IEEE standard for Information Technology, ., "IEEE Std 802.15.4-2015 Standard for Low-Rate Wireless Personal Area Networks (WPANs)", 2015.

Appendix A. Example

Example COMI requests/responses.

Author's Address

Michael Richardson Sandelman Software Works EMail: mcr+ietf@sandelman.ca