AnonCreds does something analogous, though not identical. On Sat, Jan 21, 2023, 7:52 PM Christopher Allen < ChristopherA@lifewithalacrity.com> wrote: > On Fri, Jan 20, 2023 at 8:44 AM Julien Fraichot < > Julien.Fraichot@hyland.com> wrote: > >> I have been investigating the possibility of having certificates which >> obfuscate PII data. That is, instead of using selective disclosure schemes >> to present a curated certificate, have the holder prove they know what the >> data is within the certificate. >> > > We support this in Gordian Envelopes using "Existence Proofs": > > CLI Docs: > https://github.com/BlockchainCommons/envelope-cli-swift/blob/master/Docs/8-EXISTENCE-PROOFS.md > Video: https://www.youtube.com/watch?v=LUQ-n9EZa0U > > You can see an example of leveraging Existence Proofs for herd privacy in > our Educational Use Cases at: > > > https://github.com/BlockchainCommons/Gordian/blob/master/Envelope/Use-Cases/Educational.md#6-paul-proves-proficiency-with-improved-privacy-herd-privacy-with-non-correlation > > -- Christopher Allen > >Received on Sunday, 22 January 2023 11:48:10 UTC
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