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