PASSporT Extension for Caller Name
draft-peterson-stir-cnam-01

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                                  C. Wendt
Expires: May 4, 2017                                             Comcast
                                                        October 31, 2016

                   PASSporT Extension for Caller Name
                    draft-peterson-stir-cnam-01.txt

Abstract

   This document extends the PASSporT object, which conveys
   cryptographically-signed information about the people involved in
   personal communications, to include a human-readable display name
   comparable to the "Caller ID" function common on the telephone
   network.  The element defined for this purpose is extensible to
   include related information callers.

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

Peterson & Wendt           Expires May 4, 2017                  [Page 1]
Internet-Draft              STIR Caller Name                October 2016

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

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  PASSporT 'cna' Claim  . . . . . . . . . . . . . . . . . . . .   3
   4.  Using 'cna' in SIP  . . . . . . . . . . . . . . . . . . . . .   4
     4.1.  Authentication Service Behavior . . . . . . . . . . . . .   4
     4.2.  Verification Service Behavior . . . . . . . . . . . . . .   4
   5.  Third Party Uses  . . . . . . . . . . . . . . . . . . . . . .   5
   6.  Further Information Associated with Callers . . . . . . . . .   6
   7.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .   6
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   6
     8.1.  JSON Web Token Claims . . . . . . . . . . . . . . . . . .   6
     8.2.  PASSporT Types  . . . . . . . . . . . . . . . . . . . . .   6
     8.3.  PASSporT CNA Types  . . . . . . . . . . . . . . . . . . .   7
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .   7
   10. Informative References  . . . . . . . . . . . . . . . . . . .   7
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   8

1.  Introduction

   PASSporT [I-D.ietf-stir-passport] is a token format based on JWT
   [RFC7519] for conveying cryptographically-signed information about
   the people involved in personal communications; it is used with STIR
   [I-D.ietf-stir-rfc4474bis] to convey a signed assertion of the
   identity of the participants in real-time communications established
   via a protocol like SIP.  This specification extends PASSporT to
   carry the name of the person on one side of a communications session,
   along with related display information that would typically be
   rendered to the called party during alerting.  This format is
   designed to be extended with additional elements to convey richer
   information.

   In the traditional telephone network, the display name associated
   with a call is typically provided in one of three ways: by the
   originator of a call, by a third-party service queried by the
   terminating side, or through a local address book maintained by a
   device on the terminating side.  The STIR architecture lends itself
   especially to the first of these approaches, as it assumes that an
   authority on the originating side of the call provides a
Show full document text