Thank you for the careful reading! 

> NIT: Should the enumeration of the known deficiencies of TLS 1.2 be contained
> in the Introduction? The same considerations are described in Section 6, and
> their summation in the Introduction seems to be superfluous.

I'm happy to move item #1 from the intro into section 6 and replace the 
paragraphs with a pointer.  See 
https://github.com/richsalz/draft-use-tls13/pull/4

> NIT: the assertion in section 3 that "TLS applications will need to migrate to
> post-quantum cryptography" is ddependent on the expectation of the lifetime of
> the integrity of the encrypted object. The current advice on the immediate 
> need
> to use PQC is based on an integrity lifetime of 20 years.I would feel better 
> if
> the sentence read "many TLD applications..."

I don't understand.  TLS is generally more about privacy of communications 
rather than the integrity of the content. Are you conflating this with object 
signing and encryption (JOSE, CMS, PGP, etc)?

> NIT: Section 4: "As a counter example, the Usage Profile for DNS over TLS
> [DNSTLS] specifies TLS 1.2 as the default, while also allowing TLS 1.3." I 
> fail
> to appreciate the rationale for including this - the text is careful to note
> that this applies to new protocols and DNS over TLS is not a new protocol at
> this state.

We thought it worthwhile to point to a counter-example from previous specs, but 
if it is confusing, I can remove it. I would like to ask the WG to weigh in 
before doing so.


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