Selective Disclosure
Web3 / privacy technology
Selective disclosure is a privacy technique that enables users to prove specific claims or reveal selected information about themselves without exposing all underlying data. Using cryptographic mechanisms like zero-knowledge proofs, attribute-based credentials, or blinded credentials, users can demonstrate that they meet certain criteria—such as being over a certain age or having sufficient funds—without revealing the actual sensitive details. This allows for privacy-preserving authentication, identity verification, and conditional access control where only the minimum necessary information is shared to satisfy a particular requirement, giving users granular control over what information they reveal in different contexts. Example: Soulbound tokens with selective disclosure capabilities allow a user to prove they hold a university degree credential without revealing their actual degree, transcript, or personal identifying information to third parties, while still providing cryptographic proof of educational attainment. Why it matters for privacy technology: Selective disclosure enables privacy-first identity and access control systems. It reduces data exposure in authentication flows, allowing users to maintain confidentiality while still meeting verification requirements needed for services, compliance, or access control decisions.
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