datatracker.ietf.org
Sign in
Version 5.4.0, 2014-04-22
Report a bug

Enrollment over Secure Transport
RFC 7030

Document type: RFC - Proposed Standard (October 2013)
Document stream: IETF
Last updated: 2013-10-23
Other versions: plain text, pdf, html

IETF State: WG Document
Consensus: Unknown
Document shepherd: Stefan Santesson
Shepherd Write-Up: Last changed 2013-06-20

IESG State: RFC 7030 (Proposed Standard)
IANA Action State: RFC-Ed-Ack
Responsible AD: Sean Turner
Send notices to: pkix-chairs@tools.ietf.org, draft-ietf-pkix-est@tools.ietf.org

Internet Engineering Task Force (IETF)                  M. Pritikin, Ed.
Request for Comments: 7030                           Cisco Systems, Inc.
Category: Standards Track                                    P. Yee, Ed.
ISSN: 2070-1721                                             AKAYLA, Inc.
                                                         D. Harkins, Ed.
                                                          Aruba Networks
                                                            October 2013

                    Enrollment over Secure Transport

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) certificates.  It also supports client-generated public/private
   key pairs as well as key pairs generated by the CA.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Further information on
   Internet Standards is available in Section 2 of RFC 5741.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc7030.

Pritikin, et al.             Standards Track                    [Page 1]
RFC 7030                           EST                      October 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
   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
   2. Operational Scenario Overviews ..................................5
      2.1. Obtaining CA Certificates ..................................6
      2.2. Initial Enrollment .........................................7
           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 Reissuance ..............................8
      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 ...........................15
           3.2.2. HTTP URIs for Control ..............................16
           3.2.3. HTTP-Based Client Authentication ...................17
           3.2.4. Message Types ......................................19
      3.3. TLS Layer .................................................20
           3.3.1. TLS-Based Server Authentication ....................20
           3.3.2. TLS-Based Client Authentication ....................21
           3.3.3. Certificate-Less TLS Mutual Authentication .........21
      3.4. Proof-of-Possession .......................................22
      3.5. Linking Identity and POP Information ......................22
      3.6. Server Authorization ......................................23
           3.6.1. Client Use of Explicit TA Database .................24
           3.6.2. Client Use of Implicit TA Database .................24
      3.7. Client Authorization ......................................24
   4. Protocol Exchange Details ......................................25
      4.1. Distribution of CA Certificates ...........................25

Pritikin, et al.             Standards Track                    [Page 2]

[include full document text]