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Re: [Cbor] (d)CBOR session at IETF 118

Anders Rundgren <anders.rundgren.net@gmail.com> Sun, 05 November 2023 18:23 UTC

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Date: Sun, 05 Nov 2023 19:23:36 +0100
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To: Wolf McNally <wolf@wolfmcnally.com>
Cc: "cbor@ietf.org" <cbor@ietf.org>, Christopher Allen <christophera@lifewithalacrity.com>, Shannon Appelcline <shannon.appelcline@gmail.com>
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From: Anders Rundgren <anders.rundgren.net@gmail.com>
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Subject: Re: [Cbor] (d)CBOR session at IETF 118
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On 2023-11-05 18:19, Wolf McNally wrote:
> Anders,
> 
>> On Nov 5, 2023, at 4:09 AM, Anders Rundgren <anders.rundgren.net@gmail.com> wrote:
>>
>> Since encoding 4.0 as 0xf94400 (CDE) or 0x04 (dCBOR) should be of no importance at the application-level (assuming the encoder/decoder adhere to the same conventions), the issue is (AFAICT) confined to the design of encoder/decoder APIs.
> 
> As long as you continue to insist that this is all about *API* and refuse to acknowledge that this is about *determinism* throughout the entire stack, then you’re simply never going to understand our motivations.
>

Wolf, that's correct.  I don't understand why dCBOR's determinism scheme must span over "the entire stack".  Reading draft-05 didn't make me much wiser either :(

Personally, I rather try [*] to compartmentalize implementation details, irrespective of which layer in the stack they appear in.

Regards,
Anders

*] I'm by no means a "guru" so everything isn't always super pretty :)

> Orwell famously wrote, “Freedom is the freedom to say two plus two make four.”
> 
> dCBOR is the freedom to say, “2 and 2.0 are the same concept: two, and so have the same encoding: 0x02.”
> 
> ~ Wolf

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