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List:       ietf-tls
Subject:    [TLS] [Errata Held for Document Update] RFC8446 (5717)
From:       RFC Errata System <rfc-editor () rfc-editor ! org>
Date:       2024-03-29 1:17:26
Message-ID: 20240329011726.4A87E191A4B5 () rfcpa ! amsl ! com
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The following errata report has been held for document update 
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/eid5717

--------------------------------------
Status: Held for Document Update
Type: Editorial

Reported by: Daniel Migault <daniel.migault@ericsson.com>
Date Reported: 2019-05-03
Held by: Paul Wouters (IESG)

Section: 2.2.

Original Text
-------------
 Figure 3 shows a pair of handshakes in which the first handshake
   establishes a PSK and the second handshake uses it:
 
          Client                                               Server
 
   Initial Handshake:
          ClientHello
          + key_share               -------->
                                                          ServerHello
                                                          + key_share
                                                {EncryptedExtensions}
                                                {CertificateRequest*}
                                                       {Certificate*}
                                                 {CertificateVerify*}
                                                           {Finished}
                                    <--------     [Application Data*]
          {Certificate*}
          {CertificateVerify*}
          {Finished}                -------->
                                    <--------      [NewSessionTicket]
          [Application Data]        <------->      [Application Data]
 
 
   Subsequent Handshake:
          ClientHello
          + key_share*
          + pre_shared_key          -------->
                                                          ServerHello
                                                     + pre_shared_key
                                                         + key_share*
                                                {EncryptedExtensions}
                                                           {Finished}
                                    <--------     [Application Data*]
          {Finished}                -------->
          [Application Data]        <------->      [Application Data]
 
               Figure 3: Message Flow for Resumption and PSK


Corrected Text
--------------
 Figure 3 shows a pair of handshakes in which the first handshake
   establishes a PSK and the second handshake uses it:
 
          Client                                               Server
 
   Initial Handshake:
          ClientHello
          + key_share               -------->
                                                          ServerHello
                                                          + key_share
                                                {EncryptedExtensions}
                                                {CertificateRequest*}
                                                       {Certificate*}
                                                 {CertificateVerify*}
                                                           {Finished}
                                    <--------     [Application Data*]
          {Certificate*}
          {CertificateVerify*}
          {Finished}                -------->
                                    <--------      [NewSessionTicket]
          [Application Data]        <------->      [Application Data]
 
 
   Subsequent Handshake:
          ClientHello
          + key_share*
          + psk_key_exchange_modes        
          + pre_shared_key          -------->

                                                          ServerHello
                                                     + pre_shared_key
                                                         + key_share*
                                                {EncryptedExtensions}
                                                           {Finished}
                                    <--------     [Application Data*]
          {Finished}                -------->
          [Application Data]        <------->      [Application Data]
 
               Figure 3: Message Flow for Resumption and PSK


Notes
-----
The pre_shared_key requires the pre_share_key extension.

This Issue and PR should address this erratum:
https://github.com/tlswg/tls13-spec/issues/1344
https://github.com/tlswg/tls13-spec/pull/1345


--------------------------------------
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
Stream              : IETF
Verifying Party     : IESG

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