Signature Validation Token
draft-santesson-svt-xml-00

Document Type Active Internet-Draft (individual)
Authors Stefan Santesson  , Russ Housley 
Last updated 2020-10-23
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Network Working Group                                       S. Santesson
Internet-Draft                                           IDsec Solutions
Intended status: Standards Track                              R. Housley
Expires: 24 April 2021                                    Vigil Security
                                                         21 October 2020

                       Signature Validation Token
                       draft-santesson-svt-xml-00

Abstract

   This document defines a XML profile for the Signature Validation
   Token defined in [SVT].

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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   This Internet-Draft will expire on 24 April 2021.

Copyright Notice

   Copyright (c) 2020 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 carefully, as they describe your rights
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   as described in Section 4.e of the Trust Legal Provisions and are
   provided without warranty as described in the Simplified BSD License.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Definitions . . . . . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Notation  . . . . . . . . . . . . . . . . . . . . . . . .   3
       2.1.1.  References to XML Elements from XML Schemas . . . . .   3
   3.  SVT in XML Documents  . . . . . . . . . . . . . . . . . . . .   3
     3.1.  SignatureValidationToken Signature Property . . . . . . .   3
     3.2.  Multiple SVT in a signature . . . . . . . . . . . . . . .   5
   4.  SVT Claims  . . . . . . . . . . . . . . . . . . . . . . . . .   5
     4.1.  Signature Reference Data  . . . . . . . . . . . . . . . .   5
     4.2.  Signed Data Reference Data  . . . . . . . . . . . . . . .   6
     4.3.  Signer Certificate References . . . . . . . . . . . . . .   6
   5.  JOSE Header . . . . . . . . . . . . . . . . . . . . . . . . .   6
     5.1.  SVT Signing Key Reference . . . . . . . . . . . . . . . .   6
   6.  Normative References  . . . . . . . . . . . . . . . . . . . .   7
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   7

1.  Introduction

   The "Signature Validation Token" specification [SVT] defines the
   basic token to support signature validation in a way that can
   significantly extend the lifetime of a signature.

   This specification defines a profile for implementing SVT with a
   signed XML document, and defines the following aspects of SVT usage:

   *  How to include reference data related to XML signatures and XML
      documents in an SVT.

   *  How to add an SVT token to a XML signature.

   XML documents can have any number of signature elements, signing an
   arbitrary number of fragments of XML documents.  The actual signature
   element may be included in the signed XML document (enveloped),
   include the signed data (enveloping) or may be separate from the
   signed content (detached).

   To provide a generic solution for any type of XML signature an SVT is
   added to each XML signature element within the XML signature
   <ds:Object> element.

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2.  Definitions

   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
   BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all
   capitals, as shown here.

   The definitions in [SVT] apply also to this document.

2.1.  Notation

2.1.1.  References to XML Elements from XML Schemas

   When referring to elements from the W3C XML Signature namespace
   (http://www.w3.org/2000/09/xmldsig#) the following syntax is used:

   *  <ds:Signature>

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