PASSporT SHAKEN Extension (SHAKEN)
draft-ietf-stir-passport-shaken-04

Document Type Active Internet-Draft (stir WG)
Last updated 2018-10-19 (latest revision 2018-10-17)
Replaces draft-wendt-stir-passport-shaken
Stream IETF
Intended RFC status Proposed Standard
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Stream WG state Submitted to IESG for Publication (wg milestone: Sep 2018 - Submit PASSPorT SHAK... )
Document shepherd Robert Sparks
Shepherd write-up Show (last changed 2018-10-18)
IESG IESG state In Last Call (ends 2018-11-02)
Consensus Boilerplate Yes
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Responsible AD Adam Roach
Send notices to Robert Sparks <rjsparks@nostrum.com>
IANA IANA review state IANA - Review Needed
IANA action state None
STIR                                                            C. Wendt
Internet-Draft                                                   Comcast
Intended status: Standards Track                               M. Barnes
Expires: April 20, 2019                                        iconectiv
                                                        October 17, 2018

                   PASSporT SHAKEN Extension (SHAKEN)
                   draft-ietf-stir-passport-shaken-04

Abstract

   This document extends PASSporT, which is a token object that conveys
   cryptographically-signed information about the participants involved
   in communications, to include information defined as part of the
   SHAKEN specification from ATIS (Alliance for Telecommunications
   Industry Solutions) and the SIP Forum IP-NNI Joint Task Force.  These
   extensions provide a level of confidence in the correctness of the
   originating identity for a telephone network that has communications
   coming from both STIR participating originating communications as
   well as communications that does not include STIR information.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on April 20, 2019.

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
   publication of this document.  Please review these documents

Wendt & Barnes           Expires April 20, 2019                 [Page 1]
Internet-Draft                   shaken                     October 2018

   carefully, as they describe your rights and restrictions with respect
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   2
   3.  Overview of 'shaken' PASSporT extension . . . . . . . . . . .   3
   4.  PASSporT 'attest' Claim . . . . . . . . . . . . . . . . . . .   3
   5.  PASSporT 'origid' Claim . . . . . . . . . . . . . . . . . . .   4
   6.  Example "shaken" PASSporT . . . . . . . . . . . . . . . . . .   4
   7.  Using 'shaken' in SIP . . . . . . . . . . . . . . . . . . . .   5
   8.  Order of Claim Keys . . . . . . . . . . . . . . . . . . . . .   5
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .   5
   10. IANA Considerations . . . . . . . . . . . . . . . . . . . . .   6
     10.1.  JSON Web Token claims  . . . . . . . . . . . . . . . . .   6
     10.2.  PASSporT Types . . . . . . . . . . . . . . . . . . . . .   6
   11. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   6
   12. References  . . . . . . . . . . . . . . . . . . . . . . . . .   7
     12.1.  Normative References . . . . . . . . . . . . . . . . . .   7
     12.2.  Informative References . . . . . . . . . . . . . . . . .   7
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   8

1.  Introduction

   The SHAKEN [ATIS-1000074] specification defines a framework for using
   STIR protocols including PASSporT [RFC8225], SIP Authenticated
   Identity Management [RFC8224] and the STIR certificate framework
   [RFC8226] for implementing the cryptographic validation of an
   authorized originator of telephone calls using SIP.  Because the
   current telephone network contains both VoIP and TDM/SS7 originated
   traffic, there are many scenarios that need to be accounted for where
   PASSporT signatures may represent either direct or indirect call
   origination scenarios.  The SHAKEN [ATIS-1000074] specification
   defines levels of attestation of the origination of the call as well
   as an origination identifier that can help create a unique
   association with the origination of calls from various parts of the
   VoIP or TDM telephone network.  This document specifies these
   indicators as a specified PASSporT extension.

2.  Terminology

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
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