Selective disclosure
Parent: Digital Identity & Credentials
Description
Prove a claim without revealing full credential.
Summary
Privacy-preserving verification.
Challenges
UX for selective disclosure—explaining to users what is being shared—is non-trivial. Performance of ZK proofs and key management for many attributes can be demanding. Legal and regulatory acceptance of ZK-based verification is still evolving.
Opportunities
Minimal disclosure reduces privacy risk and supports compliance (e.g. data minimization). ZK-based proofs can prove range, membership, or relations without revealing underlying data. Attestation and commitment schemes offer lighter-weight options where full ZK is not needed.
Proof of concepts
- (2024)· Ethereum
EU-wide initiative for verifiable credentials and public services.
- (2023)· Ethereum
Open attestation registry for credentials and claims.
- (2023)· Various
Standards-based verifiable credentials in government and private sector.