Key Provisioning for Group Communication using ACE
draft-ietf-ace-key-groupcomm-02
ACE Working Group F. Palombini
Internet-Draft Ericsson AB
Intended status: Standards Track M. Tiloca
Expires: January 6, 2020 RISE AB
July 05, 2019
Key Provisioning for Group Communication using ACE
draft-ietf-ace-key-groupcomm-02
Abstract
This document defines message formats and procedures for requesting
and distributing group keying material using the ACE framework, to
protect communications between group members.
Status of This Memo
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This Internet-Draft will expire on January 6, 2020.
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Palombini & Tiloca Expires January 6, 2020 [Page 1]
Internet-Draft Key Provisioning for Group Communication July 2019
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Terminology . . . . . . . . . . . . . . . . . . . . . . . 3
2. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Authorization to Join a Group . . . . . . . . . . . . . . . . 6
3.1. Authorization Request . . . . . . . . . . . . . . . . . . 7
3.2. Authorization Response . . . . . . . . . . . . . . . . . 7
3.3. Token Post . . . . . . . . . . . . . . . . . . . . . . . 8
4. Key Distribution . . . . . . . . . . . . . . . . . . . . . . 11
4.1. Key Distribution Request . . . . . . . . . . . . . . . . 12
4.2. Key Distribution Response . . . . . . . . . . . . . . . . 13
5. Removal of a Node from the Group . . . . . . . . . . . . . . 16
5.1. Expired Authorization . . . . . . . . . . . . . . . . . . 16
5.2. Request to Leave the Group . . . . . . . . . . . . . . . 16
6. Retrieval of New or Updated Keying Material . . . . . . . . . 17
6.1. Key Re-Distribution Request . . . . . . . . . . . . . . . 18
6.2. Key Re-Distribution Response . . . . . . . . . . . . . . 19
7. Retrieval of Public Keys for Group Members . . . . . . . . . 19
7.1. Public Key Request . . . . . . . . . . . . . . . . . . . 20
7.2. Public Key Response . . . . . . . . . . . . . . . . . . . 20
8. ACE Groupcomm Parameters . . . . . . . . . . . . . . . . . . 21
9. ACE Groupcomm Request Type . . . . . . . . . . . . . . . . . 22
10. Security Considerations . . . . . . . . . . . . . . . . . . . 23
10.1. Update of Keying Material . . . . . . . . . . . . . . . 24
10.2. Block-Wise Considerations . . . . . . . . . . . . . . . 24
11. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 25
11.1. ACE Authorization Server Request Creation Hints Registry 25
11.2. ACE Public Key Encoding Registry . . . . . . . . . . . . 25
11.3. ACE Groupcomm Parameters Registry . . . . . . . . . . . 26
11.4. Ace Groupcomm Request Type Registry . . . . . . . . . . 26
11.5. ACE Groupcomm Key Registry . . . . . . . . . . . . . . . 27
11.6. ACE Groupcomm Profile Registry . . . . . . . . . . . . . 28
11.7. ACE Groupcomm Policy Registry . . . . . . . . . . . . . 28
11.8. Sequence Number Synchronization Method Registry . . . . 29
11.9. Expert Review Instructions . . . . . . . . . . . . . . . 29
12. References . . . . . . . . . . . . . . . . . . . . . . . . . 30
12.1. Normative References . . . . . . . . . . . . . . . . . . 30
12.2. Informative References . . . . . . . . . . . . . . . . . 31
Appendix A. Requirements on Application Profiles . . . . . . . . 33
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