Vectors of Trust
draft-richer-vectors-of-trust-04

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Network Working Group                                     J. Richer, Ed.
Internet-Draft                                       Bespoke Engineering
Intended status: Experimental                               L. Johansson
Expires: July 20, 2017                        Swedish University Network
                                                        January 16, 2017

                            Vectors of Trust
                    draft-richer-vectors-of-trust-04

Abstract

   This document defines a mechanism for describing and signaling
   several aspects that are used to calculate trust placed in a digital
   identity transaction.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   "OPTIONAL" in this document are to be interpreted as described in RFC
   2119 [RFC2119].

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   This document is subject to BCP 78 and the IETF Trust's Legal
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Richer & Johansson        Expires July 20, 2017                 [Page 1]
Internet-Draft              vectors-of-trust                January 2017

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   4
     1.2.  An Identity Model . . . . . . . . . . . . . . . . . . . .   5
     1.3.  Component Architecture  . . . . . . . . . . . . . . . . .   5
   2.  Component Definitions . . . . . . . . . . . . . . . . . . . .   5
     2.1.  Identity Proofing . . . . . . . . . . . . . . . . . . . .   6
     2.2.  Primary Credential Usage  . . . . . . . . . . . . . . . .   7
     2.3.  Primary Credential Management . . . . . . . . . . . . . .   7
     2.4.  Assertion Presentation  . . . . . . . . . . . . . . . . .   7
   3.  Vectors of Trust Initial Component Value Definitions  . . . .   8
     3.1.  Identity Proofing . . . . . . . . . . . . . . . . . . . .   8
     3.2.  Primary Credential Usage  . . . . . . . . . . . . . . . .   8
     3.3.  Primary Credential Management . . . . . . . . . . . . . .   9
     3.4.  Assertion Presentation  . . . . . . . . . . . . . . . . .   9
   4.  Communicating Vector Values to RPs  . . . . . . . . . . . . .  10
     4.1.  On the Wire Representation  . . . . . . . . . . . . . . .  10
     4.2.  In OpenID Connect . . . . . . . . . . . . . . . . . . . .  11
     4.3.  In SAML . . . . . . . . . . . . . . . . . . . . . . . . .  11
   5.  Requesting Vector Values  . . . . . . . . . . . . . . . . . .  12
     5.1.  In OpenID Connect . . . . . . . . . . . . . . . . . . . .  12
     5.2.  In SAML . . . . . . . . . . . . . . . . . . . . . . . . .  13
   6.  Trustmark . . . . . . . . . . . . . . . . . . . . . . . . . .  13
   7.  Discovery . . . . . . . . . . . . . . . . . . . . . . . . . .  15
   8.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  15
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  15
     9.1.  Vector Of Trust Components Registry . . . . . . . . . . .  15
     9.2.  Additions to JWT Claims Registry  . . . . . . . . . . . .  16
   10. Security Considerations . . . . . . . . . . . . . . . . . . .  16
   11. Privacy Considerations  . . . . . . . . . . . . . . . . . . .  17
   12. References  . . . . . . . . . . . . . . . . . . . . . . . . .  17
     12.1.  Normative References . . . . . . . . . . . . . . . . . .  17
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