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Re: [TLS] [Technical Errata Reported] RFC8446 (7073)

Martin Thomson <mt@lowentropy.net> Mon, 08 August 2022 00:32 UTC

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Date: Mon, 08 Aug 2022 10:31:43 +1000
From: Martin Thomson <mt@lowentropy.net>
To: rfc-editor <rfc-editor@rfc-editor.org>, Eric Rescorla <ekr@rtfm.com>, Roman Danyliw <rdd@cert.org>, paul.wouters@aiven.io, Christopher Wood <caw@heapingbits.net>, Joseph Salowey <joe@salowey.net>, sean+ietf@sn3rd.com
Cc: tls@ietf.org
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Archived-At: <https://mailarchive.ietf.org/arch/msg/tls/yR6o14B0NMaCTgM6HnV0DY30-50>
Subject: Re: [TLS] [Technical Errata Reported] RFC8446 (7073)
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This is correct, though I would have extended this to say ", except for post-handshake authentication, which uses keys derived from the current [sender]_application_traffic_secret_N." or similar.

On Sat, Aug 6, 2022, at 23:03, RFC Errata System wrote:
> The following errata report has been submitted for RFC8446,
> "The Transport Layer Security (TLS) Protocol Version 1.3".
>
> --------------------------------------
> You may review the report below and at:
> https://www.rfc-editor.org/errata/eid7073
>
> --------------------------------------
> Type: Technical
> Reported by: Ben Smyth <research@bensmyth.com>
>
> Section: 4.4
>
> Original Text
> -------------
> These messages are encrypted under keys derived from the 
> [sender]_handshake_traffic_secret.
>
> Corrected Text
> --------------
> These messages are encrypted under keys derived from the 
> [sender]_handshake_traffic_secret, except for post-handshake 
> authentication
>
> Notes
> -----
> There's an exception
>
> Instructions:
> -------------
> This erratum is currently posted as "Reported". If necessary, please
> use "Reply All" to discuss whether it should be verified or
> rejected. When a decision is reached, the verifying party  
> can log in to change the status and edit the report, if necessary. 
>
> --------------------------------------
> RFC8446 (draft-ietf-tls-tls13-28)
> --------------------------------------
> 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
>
> _______________________________________________
> TLS mailing list
> TLS@ietf.org
> https://www.ietf.org/mailman/listinfo/tls

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