Deprecating TLSv1.0 and TLSv1.1
draft-ietf-tls-oldversions-deprecate-08
| The information below is for an old version of the document |
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Type |
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Active Internet-Draft (tls WG)
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Authors |
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Kathleen Moriarty
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Stephen Farrell
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Last updated |
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2020-11-09
(latest revision 2020-10-14)
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Replaces |
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draft-moriarty-tls-oldversions-diediedie
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Stream |
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Internent Engineering Task Force (IETF)
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Formats |
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pdf
htmlized (tools)
htmlized
bibtex
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Reviews |
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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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Show
(last changed 2020-07-27)
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| IESG |
IESG state |
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AD Evaluation::Revised I-D Needed
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Consensus Boilerplate |
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Yes
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Telechat date |
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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>, Kathleen Moriarty <kathleen.moriarty.ietf@gmail.com>
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Internet Engineering Task Force K. Moriarty
Internet-Draft Dell EMC
Obsoletes: 7507 (if approved) S. Farrell
Updates: 8465 8422 8261 7568 7562 7525 Trinity College Dublin
7465 7030 6750 6749 6739 6460 October 14, 2020
6614 6367 6347 6176 6084 6083
6042 6012 5878 5734 5469 5456
5422 5415 5364 5281 5263 5238
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4279 4261 4235 4217 4168 4162
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: April 17, 2021
Deprecating TLSv1.0 and TLSv1.1
draft-ietf-tls-oldversions-deprecate-08
Abstract
This document, if approved, formally deprecates Transport Layer
Security (TLS) versions 1.0 (RFC 2246) and 1.1 (RFC 4346).
Accordingly, those documents (will be moved|have been moved) to
Historic status. These versions lack support for current and
recommended cryptographic algorithms and mechanisms, 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. Removing
support for older versions from implementations reduces the attack
surface, reduces opportunity for misconfiguration, and streamlines
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 the best
practices for TLS usage in RFC 7525 and hence is part of BCP195.
Moriarty & Farrell Expires April 17, 2021 [Page 1]
Internet-Draft Deprecating TLSv1.0 and TLSv1.1 October 2020
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 April 17, 2021.
Copyright Notice
Copyright (c) 2020 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 . . . . . . . . . . . . . . . . . . . . . . . 5
2. Support for Deprecation . . . . . . . . . . . . . . . . . . . 5
3. SHA-1 Usage Problematic in TLSv1.0 and TLSv1.1 . . . . . . . 6
4. Do Not Use TLSv1.0 . . . . . . . . . . . . . . . . . . . . . 6
5. Do Not Use TLSv1.1 . . . . . . . . . . . . . . . . . . . . . 7
6. Updates to RFC7525 . . . . . . . . . . . . . . . . . . . . . 7
7. Security Considerations . . . . . . . . . . . . . . . . . . . 8
8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 8
9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 8
10. References . . . . . . . . . . . . . . . . . . . . . . . . . 8
10.1. Normative References . . . . . . . . . . . . . . . . . . 9
10.2. Informative References . . . . . . . . . . . . . . . . . 17
Moriarty & Farrell Expires April 17, 2021 [Page 2]
Internet-Draft Deprecating TLSv1.0 and TLSv1.1 October 2020
Appendix A. Change Log . . . . . . . . . . . . . . . . . . . . . 21
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