Re: ETSI TR 119 476 on selective disclosure

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.

https://www.gleif.org/en/vlei/introducing-the-verifiable-lei-vlei
Introducing the verifiable LEI (vLEI) - vLEI
gleif.org


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.



https://github.com/trustoverip/tswg-acdc-specification
trustoverip/tswg-acdc-specification: Authentic Chained Data Containers (ACDC)
github.com

https://www.ietf.org/archive/id/draft-ssmith-acdc-02.html



Happy to answer any questions

https://www.gleif.org/en/vlei/introducing-the-verifiable-lei-vlei


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 <mailto:sebastian.elfors@idnow.de>
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Samuel M. Smith Ph.D.   Founder
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