Re: Demonstration of Support for NIST-Compliant Selective Disclosure for Data Integrity Cryptosuites in VCWG

Is this fundamentally selective disclosure using hash-based ‘elision’? I
wasn’t aware of anything possible other than that which is NIST compliant
as BBS+ & CL sigs both requires pairing cryptography.

The link to the PR wasn’t that helpful, no details or docs in it. Is this
proposal a hash of an LD quad list (aka a “quin”) or some other technique?
Does it use a single salt ( i.e. like mDL) or can individual items be
salted or unsalted depending on correlation requirements?

Thanks!

— Christopher Allen

On Fri, Jul 21, 2023 at 1:50 PM Manu Sporny <msporny@digitalbazaar.com>
wrote:

> On Fri, Jul 21, 2023 at 4:24 PM Manu Sporny <msporny@digitalbazaar.com>
> wrote:
> > the ecdsa-sd proposal should be included and more
> > broadly reviewed by the Working Group
>
> Per the letter of support, the following PRs have been raised on the
> ECDSA Data Integrity Cryptosuite:
>
> Selective Disclosure helper functions (usable by BBS and ecdsa-sd)
> https://github.com/w3c/vc-di-ecdsa/pull/19
>
> ecdsa-sd-2023 cryptosuite (that utilizes the helper functions above)
> https://github.com/w3c/vc-di-ecdsa/pull/20
>
> -- manu
>
> --
> Manu Sporny - https://www.linkedin.com/in/manusporny/
> Founder/CEO - Digital Bazaar, Inc.
> https://www.digitalbazaar.com/
>
>

Received on Saturday, 22 July 2023 02:31:46 UTC