Re: ETSI TR 119 476 on selective disclosure

Sam,
Can you clarify what you mean by "draft standard"?

Mike Prorock
CTO - mesur.io

On Mon, Aug 28, 2023, 14:17 Personal Sam Smith <sam@samuelsmith.org> wrote:

> Sebastian,
>
> Thanks for the report.  I noticed that although you mention other draft
> standards for selective disclosure, such as the SD-JWT (SD-PWS), and the
> W3C-SD, your report does not mention the ACDC draft standard (Authentic
> chained data containers).
>
> ACDCs are in production for the GLEIF vLEI.
>
> [image:
> the-lei-as-a-verifiable-credential-the-vlei-trust-chain-1200x630-q85.png]
>
> Introducing the verifiable LEI (vLEI) - vLEI
> <https://www.gleif.org/en/vlei/introducing-the-verifiable-lei-vlei>
> gleif.org
> <https://www.gleif.org/en/vlei/introducing-the-verifiable-lei-vlei>
> <https://www.gleif.org/en/vlei/introducing-the-verifiable-lei-vlei>
>
>
>
> https://www.gleif.org/vlei/introducing-the-verifiable-lei-vlei/gleif-ebook-the-vlei-introducing-digital-i-d-for-organizations-everywhere/01-06-2023-gleif_introduction-to-the-vlei_redesign_v2.2.pdf
>
>
> For completeness, I suggest you also reference the SD mechanisms in ACDCs.
>
> These are a variant of what you call hashes of salted attributes but
> include more nuanced mechanisms for different types of correlatability and
> unlinkability that are not in either the SD-JWT or W3C-SD  drafts. The
> original draft publication of the ACDC mechanisms pre-dates the other
> salted hashes.
>
> The ACDC standard is being pursued under the ToIP foundation with the
> intent to promote it to a more recognized standards body such as IETF.
>
>
>
> [image: tswg-acdc-specification.png]
>
> trustoverip/tswg-acdc-specification: Authentic Chained Data Containers
> (ACDC) <https://github.com/trustoverip/tswg-acdc-specification>
> github.com <https://github.com/trustoverip/tswg-acdc-specification>
> <https://github.com/trustoverip/tswg-acdc-specification>
>
> Authentic Chained Data Containers (ACDC)
> <https://www.ietf.org/archive/id/draft-ssmith-acdc-02.html>
> ietf.org <https://www.ietf.org/archive/id/draft-ssmith-acdc-02.html>
> [image: favicon.ico]
> <https://www.ietf.org/archive/id/draft-ssmith-acdc-02.html>
> <https://www.ietf.org/archive/id/draft-ssmith-acdc-02.html>
>
>
>
> Happy to answer any questions
>
>
>
> Sam
>
>
> On Aug 28, 2023, at 05:47, Sebastian Elfors <sebastian.elfors@idnow.de>
> wrote:
>
> All,
>
> ETSI has now published the technical report TR 119 476 on selective
> disclosure
> <https://www.etsi.org/deliver/etsi_tr/119400_119499/119476/01.01.01_60/tr_119476v010101p.pdf>,
> which has been authored by me together with Peter Altmann (Swedish Agency
> for Digital Government). It provides a comprehensive overview of methods
> for selective disclosure in general, and an analysis of how these methods
> can be applied for the EUDI Wallet in particular. This could potentially be
> of interest to W3C VC WG and the related work on standards for ZKP and
> selective disclosure. Please let us know if you have any feedback or want
> to discuss this report at a meeting.
>
> Kind regards,
> Sebastian Elfors
> Senior Architect
>
> T             +49 (0)174 17 22 150
> E             sebastian.elfors@idnow.io <sebastian.elfors@idnow.de>
>
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