> On Jun 3, 2025, at 08:57, Mahesh Jethanandani via Datatracker 
> <nore...@ietf.org> wrote:
> 
> Mahesh Jethanandani has entered the following ballot position for
> draft-ietf-tls-rfc8447bis-13: No Objection
> 
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> 
> 
> ----------------------------------------------------------------------
> COMMENT:
> ----------------------------------------------------------------------
> 
>>  D:  Indicates that the item is discouraged.  This marking could be
>>     used to identify mechanisms that might result in problems if they
>>     are used, such as a weak cryptographic algorithm or a mechanism
>>     that might cause interoperability problems in deployment.  When
>>     marking a registry entry as “D”, either the References or the
>>     Comments Column MUST include sufficient information to determine
>>     why the marking has been applied.  Implementers and users SHOULD
>>     consult the linked references associated with the item to
>>     determine the conditions under which the item SHOULD NOT or MUST
>>     NOT be used.
> 
> First of all thanks to Barry Leiba for his ARTART review. I had a follow-up
> comment to what he brought up and has to do with the last sentence of the 
> above
> paragraph. The fact that the document says "SHOULD NOT or MUST NOT" and not
> just "MUST NOT" makes me think there might be conditions under which the item
> may be used.
> 
> I would have therefore thought the linked reference might, in addition,
> describe under what circumstances an item marked D might be used. If there are
> none, why not just a "MUST NOT”?

Because this is marking that will be used for registry entries now and those 
that come in the future, which we don’t know about.

spt



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