Asymmetric Manifest Based Integrity
draft-ietf-mboned-ambi-00

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Replaces draft-jholland-mboned-ambi
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Mboned                                                        J. Holland
Internet-Draft                                                   K. Rose
Intended status: Standards Track               Akamai Technologies, Inc.
Expires: September 11, 2020                               March 10, 2020

                  Asymmetric Manifest Based Integrity
                       draft-ietf-mboned-ambi-00

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 September 11, 2020.

Copyright Notice

   Copyright (c) 2020 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
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   include Simplified BSD License text as described in Section 4.e of

Holland & Rose         Expires September 11, 2020               [Page 1]
Internet-Draft                    AMBI                        March 2020

   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Comparison with TESLA . . . . . . . . . . . . . . . . . .   4
     1.2.  Threat Model  . . . . . . . . . . . . . . . . . . . . . .   5
     1.3.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   5
   2.  Protocol Operation  . . . . . . . . . . . . . . . . . . . . .   5
     2.1.  Overview  . . . . . . . . . . . . . . . . . . . . . . . .   5
     2.2.  Buffering and Validation Windows  . . . . . . . . . . . .   6
       2.2.1.  Inter-packet Gap  . . . . . . . . . . . . . . . . . .   7
     2.3.  Packet Digests  . . . . . . . . . . . . . . . . . . . . .   8
       2.3.1.  Digest Profile  . . . . . . . . . . . . . . . . . . .   8
       2.3.2.  Pseudoheader  . . . . . . . . . . . . . . . . . . . .  11
     2.4.  Manifests . . . . . . . . . . . . . . . . . . . . . . . .  12
       2.4.1.  Manifest Layout . . . . . . . . . . . . . . . . . . .  13
     2.5.  Transitioning to Other Manifest Streams . . . . . . . . .  14
   3.  Transport Considerations  . . . . . . . . . . . . . . . . . .  15
     3.1.  Overview  . . . . . . . . . . . . . . . . . . . . . . . .  15
     3.2.  HTTPS . . . . . . . . . . . . . . . . . . . . . . . . . .  15
     3.3.  DTLS  . . . . . . . . . . . . . . . . . . . . . . . . . .  15
     3.4.  DTLS + FECFRAME . . . . . . . . . . . . . . . . . . . . .  16
   4.  Examples  . . . . . . . . . . . . . . . . . . . . . . . . . .  16
   5.  YANG Module . . . . . . . . . . . . . . . . . . . . . . . . .  16
     5.1.  Tree Diagram  . . . . . . . . . . . . . . . . . . . . . .  16
     5.2.  Module  . . . . . . . . . . . . . . . . . . . . . . . . .  16
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  19
     6.1.  The YANG Module Names Registry  . . . . . . . . . . . . .  19
     6.2.  Media Type  . . . . . . . . . . . . . . . . . . . . . . .  19
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  19
     7.1.  Predictable Packets . . . . . . . . . . . . . . . . . . .  19
   8.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  20
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  20
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  20
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  21
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  22

1.  Introduction

   Multicast transport poses security problems that are not easily
   addressed by the same security mechanisms used for unicast transport.

   The "Introduction" sections of the documents describing TESLA
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