ACME Identifiers and Challenges for Telephone Numbers
draft-peterson-acme-telephone-00

Document Type Active Internet-Draft (individual)
Last updated 2016-10-31
Stream (None)
Intended RFC status (None)
Formats plain text pdf html bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
Network Working Group                                        J. Peterson
Internet-Draft                                                   Neustar
Intended status: Informational                                 R. Barnes
Expires: May 4, 2017                                             Mozilla
                                                        October 31, 2016

         ACME Identifiers and Challenges for Telephone Numbers
                  draft-peterson-acme-telephone-00.txt

Abstract

   This document specifies identifiers and challenges required to enable
   the Automated Certificate Management Environment (ACME) to issue
   certificate for telephonoe numbers.

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
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on May 4, 2017.

Copyright Notice

   Copyright (c) 2016 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
   (http://trustee.ietf.org/license-info) in effect on the date of
   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.

Peterson & Barnes          Expires May 4, 2017                  [Page 1]
Internet-Draft                ACME for TNs                  October 2016

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Telephone Number Identifier Type  . . . . . . . . . . . . . .   3
   4.  Challenges for Telephone Numbers  . . . . . . . . . . . . . .   3
     4.1.  Web-Based Telephone Number Routability Validation . . . .   4
     4.2.  Advanced Routability Validation . . . . . . . . . . . . .   5
     4.3.  Telephone Number Range Validation . . . . . . . . . . . .   5
     4.4.  Authority-Based Validation  . . . . . . . . . . . . . . .   5
   5.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .   6
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   6
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .   6
   8.  Informative References  . . . . . . . . . . . . . . . . . . .   6
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   7

1.  Introduction

   [I-D.ietf-acme-acme] is a mechanism for automating certificate
   management on the Internet.  It enables administrative entities to
   prove effective control over resources like domain names, and
   automtes the process of generating and issuing certificates.

   The STIR problem statement [RFC7340] identifies the need for Internet
   credentials that can attest authority for telephone numbers in order
   to detect impersonation, which is currently an enabler for common
   attacks associated with illegal robocalling, voicemail hacking, and
   swatting.  These credentials are used to sign PASSporTs
   [I-D.ietf-stir-passport], which may be carried in using protocols
   such as SIP [I-D.ietf-stir-rfc4474bis] or delivered outside of the
   signaling channel of call setup [I-D.rescorla-stir-fallback].
   Currently, the only defined credentials for this purpose are the
   certificates specified in [I-D.ietf-stir-certificates].

   [I-D.ietf-stir-certificates] describes certificate extensions
   suitable for associating telephone numbers with certificates.  To
   help enable certificate authorities to issue certificates with these
   extensions, this specification defines extensions to ACME suitable to
   enable certificate authorities to validate effective control of
   numbering resources and to issue corresponding certificates.

   Note that the aim of the initial challenges specified in this
   document is not to prove the assignment and delegation of resources
   in the telephone network: it is instead to establish whether
   Internet-enabled entites have effective control over the devices
Show full document text