Re: [Cbor] Fwd: New deterministic CBOR Libraries (Rust & Swift) from Blockchain Commons

[Christopher Allen <[e-mail]>]

On Thu, 16 February 2023 19:26 UTC Anders Rundgren <
[e-mail]> wrote:
> On 2023-02-16 19:13, Laurence Lundblade wrote:
> > Is there a further detailed definition of determinism, such as what to
do with floats?
>
> I started with that a while ago,

We have more detail on the specific choices that we've made in our dCBOR
libraries, excerpted from Wednesday's meeting of the Gordian Developer
Community. In particular, we have a lot of detail about how we handle
floats and maps:

* YouTube Video Archive: https://www.youtube.com/watch?v=NlJE8oF1B5M
* MP3 Audio Archive:
https://github.com/BlockchainCommons/Gordian-Developer-Community/blob/master/meetings/dCBOR%20(Deterministic%20CBOR)%20Library%20from%20Blockchain%20Commons.mp3
* Presentation PDF:
https://github.com/BlockchainCommons/Gordian-Developer-Community/blob/master/meetings/2023-03-01-dCBOR-presentation.pdf
* Text Transcript: TBD

See also "Why CBOR":
* Article: https://www.blockchaincommons.com/introduction/Why-CBOR/
* Video: https://www.youtube.com/watch?v=uoD5_Vr6qzw

dCBOR Source & Documentation:
* dCBOR Library for Rust: https://github.com/BlockchainCommons/bc-dcbor-rust
* dCBOR Library for Swift: https://github.com/BlockchainCommons/BCSwiftDCBOR
* dCBOR-CLI Reference App: https://github.com/BlockchainCommons/dcbor-cli

Blockchain Commons has embraced deterministic CBOR (dCBOR), as a the
foundation for Gordian Envelope:
* Intro Article:
https://www.blockchaincommons.com/introduction/Envelope-Intro/
* YouTube Video:
https://www.blockchaincommons.com/introduction/Envelope-Intro/

We also presented Gordian Envelope in the W3C Credentials Community Group
last January. Transcript and OGG audio at
https://w3c-ccg.github.io/meetings/2023-01-31/

On Thu, 16 February 2023 19:26 UTC Anders Rundgren <
[e-mail]> wrote:
> but now it may be time to unify the different solutions.

We are currently in what we call the "Community Review" phase for our dCBOR
libraries before we submit them for a third-party security review. We
welcome participation in any discussions to "unify the different solutions"
— this is a perfect time for this.

We currently are expecting to be scheduled to present virtually at the
Japan IETF about both dCBOR and Gordian Envelope during the hours dedicated
for the Dispatch group, but if you would also like to schedule some time
with us either then, or another date virtually, we would be glad to share.

We also are hoping to schedule a BOF at IETF San Francisco and plan to be
there F2F.

We are open to other collaborations, either at the dCBOR level, Gordian
Envelope level, or the next generation of PKI.

-- Christopher Allen