Raw-Public-Key and Pre-Shared-Key as OAuth client credentials
draft-erdtman-ace-rpcc-01

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ACE Working Group                                               L. Seitz
Internet-Draft                                                 RISE SICS
Intended status: Informational                                S. Erdtman
Expires: February 17, 2018                                    Spotify AB
                                                         August 16, 2017

     Raw-Public-Key and Pre-Shared-Key as OAuth client credentials
                       draft-erdtman-ace-rpcc-01

Abstract

   This document describes Transport Layer Security (TLS) authentication
   using Raw-Public-Key and Pre-Shared-Key as new mechanisms for OAuth
   client authentication.  Although defined for TLS the mechanisms are
   equally applicable for DTLS.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
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   This Internet-Draft will expire on February 17, 2018.

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   Copyright (c) 2017 IETF Trust and the persons identified as the
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Seitz & Erdtman         Expires February 17, 2018               [Page 1]
Internet-Draft           draft-erdtman-ace-rpcc              August 2017

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   2
   2.  Pre-Shared-Key for Client Authentication  . . . . . . . . . .   2
   3.  Raw-Public-Key for Client Authentication  . . . . . . . . . .   3
   4.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   4
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   4
     5.1.  Token Endpoint Authentication Method Registration . . . .   4
       5.1.1.  Registry Contents . . . . . . . . . . . . . . . . . .   4
       5.1.2.  Registry Contents . . . . . . . . . . . . . . . . . .   4
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   4
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   4
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .   4
     7.2.  Informative References  . . . . . . . . . . . . . . . . .   5
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   5

1.  Introduction

   This document describes Transport Layer Security (TLS) authentication
   using Raw-Public-Key and Pre-Shared-Key as the mechanism for OAuth
   client authentication.  Examples of endpoint requiering client
   authentication are token and introspection.

   The OAuth 2.0 Authorization Framework [RFC6749] defines a shared
   secret method of client authentication but also allows for the
   definition and use of additional client authentication mechanisms
   when interacting with the authorization server's token endpoint.
   This document describes two additional mechanisms of client
   authentication utilizing Raw-Public-Key [RFC7250] and Pre-Shared-Key
   TLS [RFC4279], which provide better security characteristics than
   shared secrets.

1.1.  Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

2.  Pre-Shared-Key for Client Authentication

   The following section defines, as an extension of OAuth 2.0,
   Section 2.3 [RFC6749], using Pre-Shared-Key with TLS [RFC4279] to
   authenticate the client.  This method is registered as
   'tls_client_psk' in "OAuth Token Endpoint Authentication Methods"
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