URI Signing for CDN Interconnection (CDNI)
draft-ietf-cdni-uri-signing-12

Document Type Active Internet-Draft (cdni WG)
Last updated 2017-06-25
Replaces draft-leung-cdni-uri-signing
Stream IETF
Intended RFC status Proposed Standard
Formats plain text xml pdf html bibtex
Stream WG state WG Document
Revised I-D Needed - Issue raised by WGLC
Document shepherd Kevin Ma
IESG IESG state I-D Exists (IESG: Dead)
Consensus Boilerplate Unknown
Telechat date
Responsible AD Alexey Melnikov
Send notices to (None)
CDNI                                                  R. van Brandenburg
Internet-Draft                                                Tiledmedia
Intended status: Standards Track                                K. Leung
Expires: December 26, 2017                           Cisco Systems, Inc.
                                                               P. Sorber
                                            Comcast Cable Communications
                                                           June 24, 2017

               URI Signing for CDN Interconnection (CDNI)
                     draft-ietf-cdni-uri-signing-12

Abstract

   This document describes how the concept of URI signing supports the
   content access control requirements of CDNI and proposes a URI
   signing method as a JSON Web Token (JWT) [RFC7519] profile.

   The proposed URI signing method specifies the information needed to
   be included in the URI to transmit the signed JWT as well as the
   claims needed by the signed JWT to authorize a UA.  The mechanism
   described can be used both in CDNI and single CDN scenarios.

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
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on December 26, 2017.

Copyright Notice

   Copyright (c) 2017 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

van Brandenburg, et al. Expires December 26, 2017               [Page 1]
Internet-Draft              CDNI URI Signing                   June 2017

   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.  Background and overview on URI Signing  . . . . . . . . .   5
     1.3.  CDNI URI Signing Overview . . . . . . . . . . . . . . . .   6
     1.4.  URI Signing in a non-CDNI context . . . . . . . . . . . .   8
   2.  JWT Format and Processing Requirements  . . . . . . . . . . .   8
     2.1.  JWT Claims  . . . . . . . . . . . . . . . . . . . . . . .   9
       2.1.1.  Issuer (iss) claim  . . . . . . . . . . . . . . . . .   9
       2.1.2.  URI Container (sub) claim . . . . . . . . . . . . . .  10
       2.1.3.  Client IP (aud) claim . . . . . . . . . . . . . . . .  10
       2.1.4.  Expiry Time (exp) claim . . . . . . . . . . . . . . .  10
       2.1.5.  Not Before (nbf) claim  . . . . . . . . . . . . . . .  11
       2.1.6.  Issued At (ait) claim . . . . . . . . . . . . . . . .  11
       2.1.7.  Nonce (jti) claim . . . . . . . . . . . . . . . . . .  11
       2.1.8.  CDNI Claim Set Version (cdniv) claim  . . . . . . . .  12
       2.1.9.  CDNI Expiration Time Setting (cdniets) claim  . . . .  12
       2.1.10. CDNI Signed Token Transport (cdnistt) claim . . . . .  12
       2.1.11. URI Container Forms . . . . . . . . . . . . . . . . .  12
         2.1.11.1.  URI Simple Container (uri:)  . . . . . . . . . .  13
         2.1.11.2.  URI Pattern Container (uri-pattern:) . . . . . .  13
         2.1.11.3.  URI Regular Expression Container (uri-regex:)  .  14
         2.1.11.4.  URI Hash Container (uri-hash:) . . . . . . . . .  14
     2.2.  JWT Header  . . . . . . . . . . . . . . . . . . . . . . .  14
   3.  URI Signing for HAS . . . . . . . . . . . . . . . . . . . . .  14
     3.1.  Overview  . . . . . . . . . . . . . . . . . . . . . . . .  14
     3.2.  Signed Token Chain mechanism  . . . . . . . . . . . . . .  15
     3.3.  Communicating a signed JWTs in a Signed Token Chain . . .  16
       3.3.1.  Support for cross-domain redirection  . . . . . . . .  16
   4.  Relationship with CDNI Interfaces . . . . . . . . . . . . . .  16
     4.1.  CDNI Control Interface  . . . . . . . . . . . . . . . . .  17
Show full document text