Göran, John, Jeremy, and Carsten, thank you for your WGLC feedback on the topic 
of algorithms being deprecated.  As Carsten noted, the terms "Deprecated" and 
"Prohibited" not actually being defined as used by JOSE and COSE is a root 
cause of people having different interpretations of the intent.

https://www.ietf.org/archive/id/draft-ietf-jose-fully-specified-algorithms-03.html#name-defining-deprecated-and-pro
 defines these terms for use by JOSE and COSE, and does so in a way that 
requires no changes to existing COSE or JOSE registrations, and that should 
address the ambiguities causing concern to Göran and possibly others.

                        Thanks again for your useful input!
                                -- Mike

-----Original Message-----
From: Carsten Bormann <[email protected]> 
Sent: Friday, June 14, 2024 2:58 AM
To: John Mattsson <[email protected]>
Cc: Michael Jones <[email protected]>; Jeremy O'Donoghue 
<[email protected]>; Apple Inc. <[email protected]>; Karen 
ODonoghue <[email protected]>; [email protected]; [email protected]; [email protected]
Subject: [COSE] Re: [Lake] [jose] Re: WGLC for 
draft-ietf-jose-fully-specified-algorithms

On 14. Jun 2024, at 11:08, John Mattsson 
<[email protected]> wrote:
> 
> Yes, COSE has already aligned with how the rest of the IETF like BCP 195 
> (RFC8996 and RFC9325) uses the term deprecated. I think it would be good if 
> JOSE did the same.

It would be useful to have a document where the term is actually defined.

RFC 8996 talks about deprecated, but then uses “Do not use” as the actual 
definitive text.

Grüße, Carsten

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