Secondary Certificate Authentication in HTTP/2
draft-ietf-httpbis-http2-secondary-certs-04
HTTP M. Bishop
Internet-Draft Akamai
Intended status: Standards Track N. Sullivan
Expires: October 27, 2019 Cloudflare
M. Thomson
Mozilla
April 25, 2019
Secondary Certificate Authentication in HTTP/2
draft-ietf-httpbis-http2-secondary-certs-04
Abstract
A use of TLS Exported Authenticators is described which enables
HTTP/2 clients and servers to offer additional certificate-based
credentials after the connection is established. The means by which
these credentials are used with requests is defined.
Note to Readers
Discussion of this draft takes place on the HTTP working group
mailing list (ietf-http-wg@w3.org), which is archived at
https://lists.w3.org/Archives/Public/ietf-http-wg/ [1].
Working Group information can be found at http://httpwg.github.io/
[2]; source code and issues list for this draft can be found at
https://github.com/httpwg/http-extensions/labels/secondary-certs [3].
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 https://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 October 27, 2019.
Bishop, et al. Expires October 27, 2019 [Page 1]
Internet-Draft Secondary Cert Auth in HTTP/2 April 2019
Copyright Notice
Copyright (c) 2019 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
(https://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. Server Certificate Authentication . . . . . . . . . . . . 3
1.2. Client Certificate Authentication . . . . . . . . . . . . 4
1.2.1. HTTP/1.1 Using TLS 1.2 and Earlier . . . . . . . . . 5
1.2.2. HTTP/1.1 Using TLS 1.3 . . . . . . . . . . . . . . . 6
1.2.3. HTTP/2 . . . . . . . . . . . . . . . . . . . . . . . 6
1.3. HTTP-Layer Certificate Authentication . . . . . . . . . . 7
1.4. Terminology . . . . . . . . . . . . . . . . . . . . . . . 8
2. Discovering Additional Certificates at the HTTP/2 Layer . . . 8
2.1. Indicating Support for HTTP-Layer Certificate
Authentication . . . . . . . . . . . . . . . . . . . . . 8
2.2. Making Certificates or Requests Available . . . . . . . . 9
2.3. Requiring Certificate Authentication . . . . . . . . . . 10
2.3.1. Requiring Additional Server Certificates . . . . . . 10
2.3.2. Requiring Additional Client Certificates . . . . . . 11
3. Certificates Frames for HTTP/2 . . . . . . . . . . . . . . . 12
3.1. The CERTIFICATE_NEEDED Frame . . . . . . . . . . . . . . 13
3.2. The USE_CERTIFICATE Frame . . . . . . . . . . . . . . . . 14
3.3. The CERTIFICATE_REQUEST Frame . . . . . . . . . . . . . . 15
3.3.1. Exported Authenticator Request Characteristics . . . 16
3.4. The CERTIFICATE Frame . . . . . . . . . . . . . . . . . . 16
3.4.1. Exported Authenticator Characteristics . . . . . . . 18
4. Indicating Failures During HTTP-Layer Certificate
Authentication . . . . . . . . . . . . . . . . . . . . . . . 18
5. Required Domain Certificate Extension . . . . . . . . . . . . 19
6. Security Considerations . . . . . . . . . . . . . . . . . . . 20
6.1. Impersonation . . . . . . . . . . . . . . . . . . . . . . 20
6.2. Fingerprinting . . . . . . . . . . . . . . . . . . . . . 21
6.3. Denial of Service . . . . . . . . . . . . . . . . . . . . 21
Show full document text