[TLS] [Technical Errata Reported] RFC8446 (6143)

RFC Errata System <rfc-editor@rfc-editor.org> Wed, 29 April 2020 09:19 UTC

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Subject: [TLS] [Technical Errata Reported] RFC8446 (6143)
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The following errata report has been submitted for RFC8446,
"The Transport Layer Security (TLS) Protocol Version 1.3".

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You may review the report below and at:
https://www.rfc-editor.org/errata/eid6143

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Type: Technical
Reported by: Ben Smyth <research@bensmyth.com>

Section: 4.2.7

Original Text
-------------
As of TLS 1.3, servers are permitted to send the "supported_groups"
extension to the client.

Corrected Text
--------------


Notes
-----
It is unclear whether servers are permitted to send the "supported_groups" extension to 
the client without solicitation, i.e., when the client does not first send the extension to the 
server. Clarification would be useful.

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RFC8446 (draft-ietf-tls-tls13-28)
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Title               : The Transport Layer Security (TLS) Protocol Version 1.3
Publication Date    : August 2018
Author(s)           : E. Rescorla
Category            : PROPOSED STANDARD
Source              : Transport Layer Security
Area                : Security
Stream              : IETF
Verifying Party     : IESG