Deprecating TLSv1.0 and TLSv1.1
draft-ietf-tls-oldversions-deprecate-05
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Active Internet-Draft (tls WG)
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2019-06-28
(latest revision 2019-06-20)
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draft-moriarty-tls-oldversions-diediedie
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IETF
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Intended RFC status |
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Best Current Practice
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WG state
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Submitted to IESG for Publication
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Document shepherd |
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Sean Turner
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Shepherd write-up |
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(last changed 2019-06-28)
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Yes
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Responsible AD |
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Benjamin Kaduk
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Send notices to |
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Sean Turner <sean@sn3rd.com>
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Internet Engineering Task Force K. Moriarty
Internet-Draft Dell EMC
Updates: 8465 8422 8261 7568 7562 7525 S. Farrell
7507 7465 7030 6750 6749 6739 Trinity College Dublin
6460 6084 6083 6367 6347 6176 June 20, 2019
6042 6012 5878 5734 5469 5456
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4111 4097 3983 3943 3903 3887
3871 3856 3767 3749 3656 3568
3552 3501 3470 3436 3329 3261
(if approved)
Intended status: Best Current Practice
Expires: December 22, 2019
Deprecating TLSv1.0 and TLSv1.1
draft-ietf-tls-oldversions-deprecate-05
Abstract
This document, if approved, formally deprecates Transport Layer
Security (TLS) versions 1.0 [RFC2246] and 1.1 [RFC4346] and moves
these documents to the historic state. These versions lack support
for current and recommended cipher suites, and various government and
industry profiles of applications using TLS now mandate avoiding
these old TLS versions. TLSv1.2 has been the recommended version for
IETF protocols since 2008, providing sufficient time to transition
away from older versions. Products having to support older versions
increase the attack surface unnecessarily and increase opportunities
for misconfigurations. Supporting these older versions also requires
additional effort for library and product maintenance.
This document also deprecates Datagram TLS (DTLS) version 1.0
[RFC6347] (but not DTLS version 1.2, and there is no DTLS version
1.1).
This document updates many RFCs that normatively refer to TLSv1.0 or
TLSv1.1 as described herein. This document also updates RFC 7525 and
hence is part of BCP195.
Moriarty & Farrell Expires December 22, 2019 [Page 1]
Internet-Draft Deprecating TLSv1.0 and TLSv1.1 June 2019
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 December 22, 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. RFCs Updated . . . . . . . . . . . . . . . . . . . . . . 3
1.2. Terminology . . . . . . . . . . . . . . . . . . . . . . . 4
2. Support for Deprecation . . . . . . . . . . . . . . . . . . . 4
3. SHA-1 Usage Problematic in TLSv1.0 and TLSv1.1 . . . . . . . 5
4. Do Not Use TLSv1.0 . . . . . . . . . . . . . . . . . . . . . 6
5. Do Not Use TLSv1.1 . . . . . . . . . . . . . . . . . . . . . 6
6. Updates to RFC7525 . . . . . . . . . . . . . . . . . . . . . 7
7. Security Considerations . . . . . . . . . . . . . . . . . . . 7
8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 8
9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 8
10. References . . . . . . . . . . . . . . . . . . . . . . . . . 8
10.1. Normative References . . . . . . . . . . . . . . . . . . 8
10.2. Informative References . . . . . . . . . . . . . . . . . 16
Moriarty & Farrell Expires December 22, 2019 [Page 2]
Internet-Draft Deprecating TLSv1.0 and TLSv1.1 June 2019
Appendix A. Change Log . . . . . . . . . . . . . . . . . . . . . 21
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 22
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