Federated Authentication for the Registration Data Access Protocol (RDAP) using OpenID Connect
draft-ietf-regext-rdap-openid-03
REGEXT Working Group S. Hollenbeck
Internet-Draft Verisign Labs
Intended status: Standards Track August 19, 2019
Expires: February 20, 2020
Federated Authentication for the Registration Data Access Protocol
(RDAP) using OpenID Connect
draft-ietf-regext-rdap-openid-03
Abstract
The Registration Data Access Protocol (RDAP) provides "RESTful" web
services to retrieve registration metadata from domain name and
regional internet registries. RDAP allows a server to make access
control decisions based on client identity, and as such it includes
support for client identification features provided by the Hypertext
Transfer Protocol (HTTP). Identification methods that require
clients to obtain and manage credentials from every RDAP server
operator present management challenges for both clients and servers,
whereas a federated authentication system would make it easier to
operate and use RDAP without the need to maintain server-specific
client credentials. This document describes a federated
authentication system for RDAP based on OpenID Connect.
Status of This Memo
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provisions of BCP 78 and BCP 79.
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material or to cite them other than as "work in progress."
This Internet-Draft will expire on February 20, 2020.
Copyright Notice
Copyright (c) 2019 IETF Trust and the persons identified as the
document authors. All rights reserved.
Hollenbeck Expires February 20, 2020 [Page 1]
Internet-Draft OpenID Connect for RDAP August 2019
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Problem Statement . . . . . . . . . . . . . . . . . . . . 3
1.2. Proposal . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Conventions Used in This Document . . . . . . . . . . . . . . 4
3. Federated Authentication for RDAP . . . . . . . . . . . . . . 4
3.1. RDAP and OpenID Connect . . . . . . . . . . . . . . . . . 5
3.1.1. Terminology . . . . . . . . . . . . . . . . . . . . . 5
3.1.2. Overview . . . . . . . . . . . . . . . . . . . . . . 5
3.1.3. RDAP Authentication and Authorization Steps . . . . . 6
3.1.3.1. Provider Discovery . . . . . . . . . . . . . . . 6
3.1.3.2. Authentication Request . . . . . . . . . . . . . 6
3.1.3.3. End-User Authorization . . . . . . . . . . . . . 7
3.1.3.4. Authorization Response and Validation . . . . . . 7
3.1.3.5. Token Processing . . . . . . . . . . . . . . . . 7
3.1.3.6. Delivery of User Information . . . . . . . . . . 7
3.1.4. Specialized Claims for RDAP . . . . . . . . . . . . . 8
3.1.4.1. Stated Purpose . . . . . . . . . . . . . . . . . 8
3.1.4.2. Do Not Track . . . . . . . . . . . . . . . . . . 9
4. Protocol Parameters . . . . . . . . . . . . . . . . . . . . . 9
4.1. Client Authentication Request and Response . . . . . . . 10
4.2. Token Request and Response . . . . . . . . . . . . . . . 10
4.3. Token Refresh and Revocation . . . . . . . . . . . . . . 11
4.4. Token Exchange . . . . . . . . . . . . . . . . . . . . . 14
4.5. Parameter Processing . . . . . . . . . . . . . . . . . . 14
4.6. RDAP Conformance . . . . . . . . . . . . . . . . . . . . 15
5. Clients with Limited User Interfaces . . . . . . . . . . . . 15
5.1. OAuth 2.0 Device Authorization Grant . . . . . . . . . . 16
5.2. Manual Token Management . . . . . . . . . . . . . . . . . 16
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 17
6.1. RDAP Extensions Registry . . . . . . . . . . . . . . . . 17
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