Numeric Pattern Normalization (NPN)
draft-woodworth-npn-00

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Last updated 2019-07-22
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DNSOP Working Group                                         J. Woodworth
Internet-Draft                                                 D. Ballew
Updates: 2308, 4033, 4034, 4035 (if                    CenturyLink, Inc.
         approved)                            S. Bindinganaveli Raghavan
Intended status: Standards Track                  Hughes Network Systems
Expires: January 22, 2020                                    D. Lawrence
                                                                  Oracle
                                                           July 21, 2019

                  Numeric Pattern Normalization (NPN)
                         draft-woodworth-npn-00

Abstract

   The Numeric Pattern Normalization (NPN) resource record provides pre-
   processing information to reduce the number of possible variants
   which can be generated by pattern-based RR's into a single signable
   record.

Ed note

   Text inside square brackets ([]) is additional background
   information, answers to frequently asked questions, general musings,
   etc.  They will be removed before publication.  This document is
   being collaborated on in GitHub at <https://github.com/ioneyez/npn>.
   The most recent version of the document, open issues, etc should all
   be available here.  The authors gratefully accept pull requests.

Status of This Memo

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   This Internet-Draft will expire on January 22, 2020.

Woodworth, et al.       Expires January 22, 2020                [Page 1]
Internet-Draft                     NPN                         July 2019

Copyright Notice

   Copyright (c) 2019 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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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Background and Terminology  . . . . . . . . . . . . . . .   3
   2.  The NPN Resource Record . . . . . . . . . . . . . . . . . . .   3
     2.1.  NPN RDATA Wire Format . . . . . . . . . . . . . . . . . .   3
     2.2.  The NPN RR Presentation Format  . . . . . . . . . . . . .   5
     2.3.  Use and Normalization Processing of NPN RRs . . . . . . .   5
       2.3.1.  Pseudocode for NPN Normalization Processing . . . . .   6
   3.  Security Considerations . . . . . . . . . . . . . . . . . . .   7
     3.1.  Normalized (NPN-Based) Signatures . . . . . . . . . . . .   7
   4.  Privacy Considerations  . . . . . . . . . . . . . . . . . . .   7
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   8
   6.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .   8
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   8
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .   8
     7.2.  Informative References  . . . . . . . . . . . . . . . . .   9
   Appendix A.  NPN Examples . . . . . . . . . . . . . . . . . . . .   9
     A.1.  EXAMPLE 1 . . . . . . . . . . . . . . . . . . . . . . . .   9
     A.2.  EXAMPLE 2 . . . . . . . . . . . . . . . . . . . . . . . .  10
     A.3.  EXAMPLE 3 . . . . . . . . . . . . . . . . . . . . . . . .  11
     A.4.  EXAMPLE 4 . . . . . . . . . . . . . . . . . . . . . . . .  12
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  13

1.  Introduction

   The Numeric Pattern Normalization (NPN) resource record provides
   methods to generate DNSSEC signatures for pattern-based "synthesized"
   RR's, and validation of such signatures.  It does this by introducing
   a pre-processing step of pattern substitution into both the signing
   and validating processes.

Woodworth, et al.       Expires January 22, 2020                [Page 2]
Internet-Draft                     NPN                         July 2019

1.1.  Background and Terminology

   The reader is assumed to be familiar with the basic DNS and DNSSEC
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