Using DNS-Based Authentication of Named Entities (DANE) TLSA Records with SRV Records
RFC 7673
| Document | Type |
RFC - Proposed Standard
(October 2015; No errata)
Was draft-ietf-dane-srv (dane WG)
|
|
|---|---|---|---|
| Last updated | 2015-10-14 | ||
| Stream | IETF | ||
| Formats | plain text pdf html bibtex | ||
| Reviews | |||
| Stream | WG state | Submitted to IESG for Publication | |
| Document shepherd | Ólafur Guðmundsson | ||
| Shepherd write-up | Show (last changed 2015-03-23) | ||
| IESG | IESG state | RFC 7673 (Proposed Standard) | |
| Consensus Boilerplate | Yes | ||
| Telechat date | |||
| Responsible AD | Stephen Farrell | ||
| Send notices to | (None) | ||
| IANA | IANA review state | Version Changed - Review Needed | |
| IANA action state | No IANA Actions | ||
Internet Engineering Task Force (IETF) T. Finch
Request for Comments: 7673 University of Cambridge
Category: Standards Track M. Miller
ISSN: 2070-1721 Cisco Systems, Inc.
P. Saint-Andre
&yet
October 2015
Using DNS-Based Authentication of Named Entities (DANE)
TLSA Records with SRV Records
Abstract
The DNS-Based Authentication of Named Entities (DANE) specification
(RFC 6698) describes how to use TLSA resource records secured by
DNSSEC (RFC 4033) to associate a server's connection endpoint with
its Transport Layer Security (TLS) certificate (thus enabling
administrators of domain names to specify the keys used in that
domain's TLS servers). However, application protocols that use SRV
records (RFC 2782) to indirectly name the target server connection
endpoints for a service domain name cannot apply the rules from RFC
6698. Therefore, this document provides guidelines that enable such
protocols to locate and use TLSA records.
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/rfc7673.
Finch, et al. Standards Track [Page 1]
RFC 7673 TLSA and SRV October 2015
Copyright Notice
Copyright (c) 2015 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
2. Terminology .....................................................4
3. DNS Checks ......................................................4
3.1. SRV Query ..................................................4
3.2. Address Queries ............................................5
3.3. TLSA Queries ...............................................6
3.4. Impact on TLS Usage ........................................6
4. TLS Checks ......................................................7
4.1. SRV Records Only ...........................................7
4.2. TLSA Records ...............................................8
5. Guidance for Protocol Authors ...................................8
6. Guidance for Server Operators ...................................8
7. Guidance for Application Developers .............................9
8. Internationalization Considerations .............................9
9. Security Considerations ........................................10
9.1. Mixed Security Status .....................................10
9.2. Certificate Subject Name Matching .........................10
10. References ....................................................11
10.1. Normative References .....................................11
10.2. Informative References ...................................12
Appendix A. Examples ..............................................13
A.1. IMAP .......................................................13
A.2. XMPP .......................................................13
Appendix B. Rationale .............................................14
Acknowledgements ..................................................15
Authors' Addresses ................................................16
Finch, et al. Standards Track [Page 2]
RFC 7673 TLSA and SRV October 2015
1. Introduction
The base DNS-Based Authentication of Named Entities (DANE)
specification [RFC6698] describes how to use TLSA resource records
secured by DNSSEC [RFC4033] to associate a target server's connection
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