3.3.1.3 Credential Layer, Selective Disclosure includes but may not limited to ZKP methods.

[mashbean]

In 3.3.1.3. Layer 3: Credential Layer, the description of Verifiable Presentation (VP) states: “If Selective Disclosure is adopted, the proof is obtained through the use of a cryptographic zero-knowledge proof.”

In some broader uses of VC suites, it may not fully align with the strict definition of ZKP, but still achieves the functionality of Selective Disclosure (SD). Perhaps it could be revised to: “If Selective Disclosure is adopted, the proof MAY be obtained through the use of a cryptographic zero-knowledge proof.”

Additionally, as per Issue #14, it is understood that different SDOs have varying definitions of VC, so the discussion on the adoption of ZKP in VC under different definitions will not be addressed here, even though this could lead to some differences.

Ref: https://consulting.identitywoman.net/standards-based-digital-credentials-flavors-explained

[simoneonofri]

Dear @mashbean, thank you.

For the "MAY," I've just committed the edit in the referenced PR.

For the question about the different definitions of VC, we can continue discussing in issue #14 and closing this one.

Feel free to reopen if needed.