IANA Registration of Trustword Lists: Guide, Template and IANA Considerations
draft-birk-pep-trustwords-03

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Network Working Group                                            V. Birk
Internet-Draft                                                H. Marques
Intended status: Standards Track                          pEp Foundation
Expires: September 12, 2019                                 B. Hoeneisen
                                                                 Ucom.ch
                                                          March 11, 2019

     IANA Registration of Trustword Lists: Guide, Template and IANA
                             Considerations
                      draft-birk-pep-trustwords-03

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.

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
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   Drafts is at https://datatracker.ietf.org/drafts/current/.

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   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on September 12, 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
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of

Birk, et al.           Expires September 12, 2019               [Page 1]
Internet-Draft    IANA Registration of Trustword Lists        March 2019

   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.

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 . . . . . . . . . . . . . . . . .  12
   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.