IANA Registration of Trustword Lists: Guide, Template and IANA Considerations
draft-birk-pep-trustwords-02

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Network Working Group                                            V. Birk
Internet-Draft                                                H. Marques
Intended status: Standards Track                          pEp Foundation
Expires: December 28, 2018                                  B. Hoeneisen
                                                                 Ucom.ch
                                                           June 26, 2018

     IANA Registration of Trustword Lists: Guide, Template and IANA
                             Considerations
                      draft-birk-pep-trustwords-02

Abstract

   This document specifies the IANA Registration Guidelines for
   Trustwords, describes corresponding registration procedures, and
   provides a guideline for creating Trustword list specifications.

   Trustwords are common words in a natural language (e.g., English) to
   which the hexadecimal strings are mapped to.  This makes verification
   processes (e.g., comparison of fingerprints), more practical and less
   prone to misunderstandings.

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   This Internet-Draft will expire on December 28, 2018.

Copyright Notice

   Copyright (c) 2018 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

Birk, et al.            Expires December 28, 2018               [Page 1]
Internet-Draft    IANA Registration of Trustword Lists         June 2018

   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  The Concept of Trustword Mapping  . . . . . . . . . . . . . .   3
     3.1.  Example . . . . . . . . . . . . . . . . . . . . . . . . .   3
     3.2.  Previous work . . . . . . . . . . . . . . . . . . . . . .   4
     3.3.  Number of Trustwords for a language . . . . . . . . . . .   4
     3.4.  Language  . . . . . . . . . . . . . . . . . . . . . . . .   5
     3.5.  The nature of the words . . . . . . . . . . . . . . . . .   5
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   5
     4.1.  Registration Template (XML chunk) . . . . . . . . . . . .   6
     4.2.  IANA Registration . . . . . . . . . . . . . . . . . . . .   7
       4.2.1.  Language Code (<languagecode>)  . . . . . . . . . . .   7
       4.2.2.  Bit Size (<bitsize>)  . . . . . . . . . . . . . . . .   7
       4.2.3.  Number Of Unique Words (<numberofuniquewords>)  . . .   7
       4.2.4.  Bijectivity (<bijective>) . . . . . . . . . . . . . .   8
       4.2.5.  Version (<version>) . . . . . . . . . . . . . . . . .   8
       4.2.6.  Registration Document(s) (<registrationdocs>) . . . .   8
       4.2.7.  Requesters (<requesters>) . . . . . . . . . . . . . .   8
       4.2.8.  Further Information (<additionalinfo>)  . . . . . . .   9
       4.2.9.  Wordlist (<wordlist>) . . . . . . . . . . . . . . . .   9
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  10
   6.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  10
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  10
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .  10
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  10
   Appendix A.  IANA XML Template Example  . . . . . . . . . . . . .  12
   Appendix B.  Document Changelog . . . . . . . . . . . . . . . . .  13
   Appendix C.  Open Issues  . . . . . . . . . . . . . . . . . . . .  13
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  14

1.  Introduction

   In public-key cryptography comparing the public keys' fingerprints of
   the communication partners involved is vital to ensure that there is
   no man-in-the-middle (MITM) attack on the communication channel.
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