Mohamed Boucadair has entered the following ballot position for
draft-ietf-tls-tls12-frozen-06: Discuss

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DISCUSS:
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Hi Rich,

Thank you for the effort put in this effort.

Thanks to Jen Linkova for the opsdir review. I understood that her comment will
be fixed.

I’m supportive of this work. I will be balloting “Yes” after the DISCUSS point
is addressed.

## On urgent security conditions

CURRENT:
   This
   document specifies that outside of urgent security fixes, and the
   exceptions listed in Section 4, no changes will be approved for TLS
   1.2.

Who will make the call about what is “urgent”? Is it the TLS WG? Else? What
about extensions that may be required by applications defined in other WGs?


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COMMENT:
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FWIW, my full review can be found at:

* pdf:
https://github.com/boucadair/IETF-Drafts-Reviews/blob/master/2025/draft-ietf-tls-tls12-frozen-06-rev%20Med.pdf
* doc:
https://github.com/boucadair/IETF-Drafts-Reviews/blob/master/2025/draft-ietf-tls-tls12-frozen-06-rev%20Med.doc

Only a subset of items are echoed here. The author can refer to the full review
for nits/edits/etc.

# Abstract

## Reword for better clarity

OLD:
   Use of TLS 1.3 is growing and fixes some known deficiencies in TLS
   1.2.

NEW:
   Use of TLS 1.3, which fixes some known deficiencies in TLS
   1.2, is growing.

## I think “for TLS 1.2-only” would be more accurate as some of these are
applicable to TLS1.3 as well. Consider updating accordingly:

CURRENT:
   This document specifies that except urgent security fixes,
   new TLS Exporter Labels, or new Application-Layer Protocol
   Negotiation (ALPN) Protocol IDs, no changes will be approved for TLS
   1.2.

# Introduction

## Reword for better clarity

OLD:
   Both versions have several extension points, so items like new
   cryptographic algorithms, new supported groups (formerly "named
   curves"), etc., can be added without defining a new protocol.

NEW:
   Both TLS versions have several extension points. Items such as new
   cryptographic algorithms, new supported groups (formerly "named
   curves"), etc., can be added without defining a new protocol.

As a side note on “etc.”, I’d like to check if we should be more explicit here
given that we have notes in the registry such as: “Although TLS 1.3 uses the
same cipher suite space as previous versions of TLS, TLS 1.3 cipher suites are
defined differently, only specifying the symmetric ciphers and hash function,
and cannot be used for TLS 1.2. Similarly, TLS 1.2 and lower cipher suite
values cannot be used with TLS 1.3.”

# Section 2

## Provider examples of “huge impact” mentioned in this text:

CURRENT:
   Cryptographically relevant quantum computers, once available, will
   have a huge impact on RSA, FFDH, and ECC which are currently used in
   TLS.

## On the various NIST citations: Are there any other similar pointers to list
for non-US regions?

# Section 4:

## I think the IANA registries should be authoritative here, not the RFC.

CURRENT:
   No registries [TLS13REG] are being closed by this document.

## Call out this is about TLS registries:

OLD:
   No registries [TLS13REG] are being closed by this document.

NEW:
  No registries in TLS registry groups [REF] are being closed by this document.

## Not any random registry, but TLS:

OLD:
   Any registries created after this document is approved for
   publication should indicate whether the actions defined here are
   applicable.

NEW:
   Any TLS registry created after this document is approved for
   publication should indicate whether the actions defined here are
   applicable.



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