Asymmetric Manifest Based Integrity
draft-ietf-mboned-ambi-01
Mboned J. Holland
Internet-Draft K. Rose
Intended status: Standards Track Akamai Technologies, Inc.
Expires: May 3, 2021 October 30, 2020
Asymmetric Manifest Based Integrity
draft-ietf-mboned-ambi-01
Abstract
This document defines Asymmetric Manifest-Based Integrity (AMBI).
AMBI allows each receiver or forwarder of a stream of multicast
packets to check the integrity of the contents of each packet in the
data stream. AMBI operates by passing cryptographically verifiable
hashes of the data packets inside manifest messages, and sending the
manifests over authenticated out-of-band communication channels.
Status of This Memo
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This Internet-Draft will expire on May 3, 2021.
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Holland & Rose Expires May 3, 2021 [Page 1]
Internet-Draft AMBI October 2020
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Comparison with TESLA . . . . . . . . . . . . . . . . . . 4
1.2. Threat Model . . . . . . . . . . . . . . . . . . . . . . 4
1.3. Terminology . . . . . . . . . . . . . . . . . . . . . . . 5
1.4. Notes for Contributors and Reviewers . . . . . . . . . . 5
1.4.1. Venues for Contribution and Discussion . . . . . . . 5
2. Protocol Operation . . . . . . . . . . . . . . . . . . . . . 5
2.1. Overview . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2. Buffering and Validation Windows . . . . . . . . . . . . 6
2.2.1. Inter-packet Gap . . . . . . . . . . . . . . . . . . 8
2.3. Packet Digests . . . . . . . . . . . . . . . . . . . . . 8
2.3.1. Digest Profile . . . . . . . . . . . . . . . . . . . 8
2.3.2. Pseudoheader . . . . . . . . . . . . . . . . . . . . 10
2.4. Manifests . . . . . . . . . . . . . . . . . . . . . . . . 12
2.4.1. Manifest Layout . . . . . . . . . . . . . . . . . . . 12
2.5. Transitioning to Other Manifest Streams . . . . . . . . . 13
3. Transport Considerations . . . . . . . . . . . . . . . . . . 14
3.1. Overview . . . . . . . . . . . . . . . . . . . . . . . . 14
3.2. HTTPS . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.3. DTLS . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.4. DTLS + FECFRAME . . . . . . . . . . . . . . . . . . . . . 15
4. Examples . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5. YANG Module . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1. Tree Diagram . . . . . . . . . . . . . . . . . . . . . . 15
5.2. Module . . . . . . . . . . . . . . . . . . . . . . . . . 15
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 18
6.1. The YANG Module Names Registry . . . . . . . . . . . . . 18
6.2. The XML Registry . . . . . . . . . . . . . . . . . . . . 18
6.3. Media Type . . . . . . . . . . . . . . . . . . . . . . . 18
7. Security Considerations . . . . . . . . . . . . . . . . . . . 19
7.1. Predictable Packets . . . . . . . . . . . . . . . . . . . 19
8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 19
9. References . . . . . . . . . . . . . . . . . . . . . . . . . 19
9.1. Normative References . . . . . . . . . . . . . . . . . . 19
9.2. Informative References . . . . . . . . . . . . . . . . . 20
9.3. URIs . . . . . . . . . . . . . . . . . . . . . . . . . . 21
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