Bundle Protocol Security Specification
draft-ietf-dtn-bpsec-27
Document | Type | Active Internet-Draft (dtn WG) | ||
---|---|---|---|---|
Authors | Edward Birrane , Kenneth McKeever | |||
Last updated | 2021-02-23 (latest revision 2021-02-16) | |||
Replaces | draft-birrane-dtn-sbsp | |||
Stream | IETF | |||
Intended RFC status | Proposed Standard | |||
Formats | plain text xml pdf htmlized (tools) htmlized bibtex | |||
Reviews | ||||
Stream | WG state | Submitted to IESG for Publication (wg milestone: Jul 2019 - Bundle Security Prot... ) | ||
Document shepherd | Scott Burleigh | |||
Shepherd write-up | Show (last changed 2019-06-19) | |||
IESG | IESG state | RFC Ed Queue | ||
Action Holders |
(None)
|
|||
Consensus Boilerplate | Yes | |||
Telechat date | ||||
Responsible AD | Magnus Westerlund | |||
Send notices to | Scott Burleigh <Scott.C.Burleigh@jpl.nasa.gov> | |||
IANA | IANA review state | Version Changed - Review Needed | ||
IANA action state | RFC-Ed-Ack | |||
IANA expert review state | Expert Reviews OK | |||
IANA expert review comments | All reviews approved. | |||
RFC Editor | RFC Editor state | MISSREF | ||
Details |
Delay-Tolerant Networking E. Birrane Internet-Draft K. McKeever Intended status: Standards Track JHU/APL Expires: August 19, 2021 February 15, 2021 Bundle Protocol Security Specification draft-ietf-dtn-bpsec-27 Abstract This document defines a security protocol providing data integrity and confidentiality services for the Bundle Protocol. 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 https://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 August 19, 2021. Copyright Notice Copyright (c) 2021 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 (https://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. Birrane & McKeever Expires August 19, 2021 [Page 1] Internet-Draft Bundle Protocol Security Specification February 2021 Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1. Supported Security Services . . . . . . . . . . . . . . . 3 1.2. Specification Scope . . . . . . . . . . . . . . . . . . . 4 1.3. Related Documents . . . . . . . . . . . . . . . . . . . . 5 1.4. Terminology . . . . . . . . . . . . . . . . . . . . . . . 6 2. Design Decisions . . . . . . . . . . . . . . . . . . . . . . 7 2.1. Block-Level Granularity . . . . . . . . . . . . . . . . . 7 2.2. Multiple Security Sources . . . . . . . . . . . . . . . . 8 2.3. Mixed Security Policy . . . . . . . . . . . . . . . . . . 9 2.4. User-Defined Security Contexts . . . . . . . . . . . . . 9 2.5. Deterministic Processing . . . . . . . . . . . . . . . . 9 3. Security Blocks . . . . . . . . . . . . . . . . . . . . . . . 10 3.1. Block Definitions . . . . . . . . . . . . . . . . . . . . 10 3.2. Uniqueness . . . . . . . . . . . . . . . . . . . . . . . 10 3.3. Target Multiplicity . . . . . . . . . . . . . . . . . . . 12 3.4. Target Identification . . . . . . . . . . . . . . . . . . 13 3.5. Block Representation . . . . . . . . . . . . . . . . . . 13 3.6. Abstract Security Block . . . . . . . . . . . . . . . . . 13 3.7. Block Integrity Block . . . . . . . . . . . . . . . . . . 16 3.8. Block Confidentiality Block . . . . . . . . . . . . . . . 17 3.9. Block Interactions . . . . . . . . . . . . . . . . . . . 18 3.10. Parameter and Result Identification . . . . . . . . . . . 19 3.11. BSP Block Examples . . . . . . . . . . . . . . . . . . . 20 3.11.1. Example 1: Constructing a Bundle with Security . . . 20 3.11.2. Example 2: Adding More Security At A New Node . . . 21 4. Canonical Forms . . . . . . . . . . . . . . . . . . . . . . . 23 5. Security Processing . . . . . . . . . . . . . . . . . . . . . 24 5.1. Bundles Received from Other Nodes . . . . . . . . . . . . 24 5.1.1. Receiving BCBs . . . . . . . . . . . . . . . . . . . 24 5.1.2. Receiving BIBs . . . . . . . . . . . . . . . . . . . 25 5.2. Bundle Fragmentation and Reassembly . . . . . . . . . . . 26 6. Key Management . . . . . . . . . . . . . . . . . . . . . . . 27 7. Security Policy Considerations . . . . . . . . . . . . . . . 27 7.1. Security Reason Codes . . . . . . . . . . . . . . . . . . 28 8. Security Considerations . . . . . . . . . . . . . . . . . . . 30 8.1. Attacker Capabilities and Objectives . . . . . . . . . . 30 8.2. Attacker Behaviors and BPSec Mitigations . . . . . . . . 31 8.2.1. Eavesdropping Attacks . . . . . . . . . . . . . . . . 31 8.2.2. Modification Attacks . . . . . . . . . . . . . . . . 32 8.2.3. Topology Attacks . . . . . . . . . . . . . . . . . . 33Show full document text