Authentication Context Certificate Extension
draft-santesson-auth-context-extension-02

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Document Type Active Internet-Draft (individual)
Author Stefan Santesson 
Last updated 2013-02-12
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INTERNET-DRAFT                                          Stefan Santesson
Intended Status: Informational                            (3xA Security)
Expires: August 17, 2013                               February 13, 2013

              Authentication Context Certificate Extension
               draft-santesson-auth-context-extension-02

Abstract

   This document defines an extension to certificates according to
   [RFC5280]. The extension defined in this document holds data about
   how the certificate subject was authenticated by the Certification
   Authority who issued the certificate where this extension appears. 

   This document also defines one data structure for inclusion in this
   extension that designed to hold information when the subject is
   authenticated using a SAML assertion [SAML].

Status of this Memo

   This Internet-Draft is submitted to IETF 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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Copyright and License Notice

   Copyright (c) 2013 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
 

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INTERNET DRAFT      Authentication Context Extension   February 13, 2013

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

Table of Contents

   1  Introduction  . . . . . . . . . . . . . . . . . . . . . . . . .  3
     1.1  Terminology . . . . . . . . . . . . . . . . . . . . . . . .  4
     1.2  Deployment  . . . . . . . . . . . . . . . . . . . . . . . .  4
   2.  Authentication Context Extension Syntax  . . . . . . . . . . .  5
   3  SAML Authentication Context Information . . . . . . . . . . . .  5
     3.1   authContextInfo object . . . . . . . . . . . . . . . . . .  6
     3.2  idAttributes object . . . . . . . . . . . . . . . . . . . .  7
   3  Security Considerations . . . . . . . . . . . . . . . . . . . .  9
   4  IANA Considerations . . . . . . . . . . . . . . . . . . . . . .  9
   5  References  . . . . . . . . . . . . . . . . . . . . . . . . . .  9
     5.1  Normative References  . . . . . . . . . . . . . . . . . . .  9
     5.2  Informative References  . . . . . . . . . . . . . . . . . . 10
   Appendix A - ASN.1 modules . . . . . . . . . . . . . . . . . . . . 10
     A.1  ASN.1 1988 Syntax . . . . . . . . . . . . . . . . . . . . . 10
     A.2  ASN.1 2008 Syntax . . . . . . . . . . . . . . . . . . . . . 11
   Appendix B - SAML Authentication Context Data Structures . . . . . 12
     B.1  JSON Schema . . . . . . . . . . . . . . . . . . . . . . . . 12
     B.2  JAVA Class Declaration  . . . . . . . . . . . . . . . . . . 13
     B.2  Example . . . . . . . . . . . . . . . . . . . . . . . . . . 14
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 15

 

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1  Introduction

   This document addresses some needs that may arise when issuing a
   certificate from an existing non-certificate based identity
   infrastructure where the certificate subject already has an
   authenticated identity composed of a set of attributes, or so called
   claims, that differ from the attributes that are commonly used to
   express the identity of a certificate subject.

   A typical scenario for this is when the basic trust infrastructure is
   based on a SAML federation, where the subject for some reason needs a
   certificate that can be traced back to that subjects SAML
   credentials, both with regard to identity and with regard to level of
   assurance with which the subject has been authenticated.
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