Enrollment over Secure Transport
draft-ietf-pkix-est-04

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Document Type Active Internet-Draft (pkix WG)
Last updated 2013-02-11
Replaces draft-pritikin-est
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PKIX                                                    M. Pritikin, Ed.
Internet-Draft                                       Cisco Systems, Inc.
Intended status: Standards Track                             P. Yee, Ed.
Expires: August 15, 2013                                    AKAYLA, Inc.
                                                         D. Harkins, Ed.
                                                          Aruba Networks
                                                       February 11, 2013

                    Enrollment over Secure Transport
                         draft-ietf-pkix-est-04

Abstract

   This document profiles certificate enrollment for clients using
   Certificate Management over CMS (CMC) messages over a secure
   transport.  This profile, called Enrollment over Secure Transport
   (EST), describes a simple yet functional certificate management
   protocol targeting Public Key Infrastructure (PKI) clients that need
   to acquire client certificates and associated Certification Authority
   (CA) certificate(s).

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 August 15, 2013.

Copyright 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
   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

Pritikin, et al.         Expires August 15, 2013                [Page 1]
Internet-Draft                     EST                     February 2013

   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 . . . . . . . . . . . . . . . . . . . . . . . . .  4
     1.1.  Terminology  . . . . . . . . . . . . . . . . . . . . . . .  5
   2.  Operational Scenario Overviews . . . . . . . . . . . . . . . .  6
     2.1.  Obtaining CA Certificates  . . . . . . . . . . . . . . . .  7
     2.2.  Initial Enrollment . . . . . . . . . . . . . . . . . . . .  8
       2.2.1.  Certificate TLS authentication . . . . . . . . . . . .  8
       2.2.2.  Certificate-less TLS authentication  . . . . . . . . .  8
       2.2.3.  HTTP-based client authentication . . . . . . . . . . .  8
     2.3.  Client Certificate Re-issuance . . . . . . . . . . . . . .  9
     2.4.  Server Key Generation  . . . . . . . . . . . . . . . . . .  9
     2.5.  Full PKI Request messages  . . . . . . . . . . . . . . . .  9
     2.6.  Certificate Signing Request (CSR) Attributes Request . . .  9
   3.  Protocol Design and Layering . . . . . . . . . . . . . . . . . 10
     3.1.  Application Layer  . . . . . . . . . . . . . . . . . . . . 13
     3.2.  HTTP Layer . . . . . . . . . . . . . . . . . . . . . . . . 14
       3.2.1.  HTTP headers for control . . . . . . . . . . . . . . . 14
       3.2.2.  HTTP URIs for control  . . . . . . . . . . . . . . . . 15
       3.2.3.  HTTP-Based Client Authentication . . . . . . . . . . . 16
       3.2.4.  Message types  . . . . . . . . . . . . . . . . . . . . 17
     3.3.  TLS Layer  . . . . . . . . . . . . . . . . . . . . . . . . 18
       3.3.1.  TLS-Based Server Authentication  . . . . . . . . . . . 19
       3.3.2.  TLS-Based Client Authentication  . . . . . . . . . . . 19
       3.3.3.  Certificate-less TLS Mutual Authentication . . . . . . 20
     3.4.  Proof-of-Possession  . . . . . . . . . . . . . . . . . . . 20
     3.5.  Linking Identity and PoP information . . . . . . . . . . . 21
     3.6.  Server Authorization . . . . . . . . . . . . . . . . . . . 22
     3.7.  Client Authorization . . . . . . . . . . . . . . . . . . . 22
   4.  Protocol Exchange Details  . . . . . . . . . . . . . . . . . . 23
     4.1.  Distribution of CA certificates  . . . . . . . . . . . . . 23
       4.1.1.  Bootstrap Distribution of CA certificates  . . . . . . 23
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