Enrollment over Secure Transport
draft-ietf-pkix-est-01

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Document Type Active Internet-Draft (pkix WG)
Last updated 2012-03-12
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: September 13, 2012                                 AKAYLA, Inc.
                                                          March 12, 2012

                    Enrollment over Secure Transport
                         draft-ietf-pkix-est-01

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 simple Public Key Infrastructure clients that need
   to acquire client certificate(s) 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 September 13, 2012.

Copyright Notice

   Copyright (c) 2012 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
   carefully, as they describe your rights and restrictions with respect
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Pritikin & Yee         Expires September 13, 2012               [Page 1]
Internet-Draft                     EST                        March 2012

   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.

Pritikin & Yee         Expires September 13, 2012               [Page 2]
Internet-Draft                     EST                        March 2012

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  4
     1.1.  Requirements Language  . . . . . . . . . . . . . . . . . .  5
   2.  Requirements . . . . . . . . . . . . . . . . . . . . . . . . .  5
   3.  Operational Scenario Overviews . . . . . . . . . . . . . . . .  7
   4.  Protocol Design and Layering . . . . . . . . . . . . . . . . .  9
     4.1.  Application Layer Design . . . . . . . . . . . . . . . . .  9
     4.2.  HTTP Layer Design  . . . . . . . . . . . . . . . . . . . . 10
       4.2.1.  HTTP headers for control . . . . . . . . . . . . . . . 10
       4.2.2.  HTTP URIs for control  . . . . . . . . . . . . . . . . 10
       4.2.3.  HTTP-Based Client Authentication . . . . . . . . . . . 12
       4.2.4.  Message types  . . . . . . . . . . . . . . . . . . . . 13
     4.3.  TLS Layer Design . . . . . . . . . . . . . . . . . . . . . 14
       4.3.1.  TLS for transport security . . . . . . . . . . . . . . 14
         4.3.1.1.  TLS-Based Server Authentication  . . . . . . . . . 14
         4.3.1.2.  TLS-Based Client Authentication  . . . . . . . . . 16
     4.4.  Proof-of-Possession  . . . . . . . . . . . . . . . . . . . 16
     4.5.  Linking Identity and POP information . . . . . . . . . . . 16
   5.  Protocol Exchange Details  . . . . . . . . . . . . . . . . . . 17
     5.1.  Client Authorization . . . . . . . . . . . . . . . . . . . 18
     5.2.  Server Authorization . . . . . . . . . . . . . . . . . . . 18
     5.3.  Distribution of CA certificates  . . . . . . . . . . . . . 19
       5.3.1.  Distribution of CA certificates response . . . . . . . 19
     5.4.  Simple Enrollment of Clients . . . . . . . . . . . . . . . 20
       5.4.1.  Simple Re-Enrollment of Clients  . . . . . . . . . . . 20
       5.4.2.  Simple Enroll and Re-Enroll Response . . . . . . . . . 21
     5.5.  Full CMC . . . . . . . . . . . . . . . . . . . . . . . . . 22
       5.5.1.  Full CMC Request . . . . . . . . . . . . . . . . . . . 22
       5.5.2.  Full CMC Response  . . . . . . . . . . . . . . . . . . 22
     5.6.  Server-side Key Generation . . . . . . . . . . . . . . . . 22
       5.6.1.  Server-side Key Generation Request . . . . . . . . . . 23
       5.6.2.  Server-side Key Generation Response  . . . . . . . . . 23
   6.  Cryptographic Algorithms . . . . . . . . . . . . . . . . . . . 24
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