Privacy Preserving Personal Unique Identifiers
summary
Claims a privacy-preserving way to prove uniqueness by cryptographically deriving per-context identifiers from a single universal UID (passport or biometric) and proving validity with zero-knowledge proofs. Implements a no-code query Builder that generates ZK queries the user wallet answers, and per-app paywise DIDs to prevent cross-site linkability. Sessions define scope (site, concert, vote) so the same user yields consistent IDs inside a context but different, unlinkable IDs across contexts. Prototype is integrated into Privado ID wallet and runs on-device.
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chapters (6)
- 0:00Privacy preserving unique IDs
- 3:18Proof of uniqueness in decentralized identity
- 9:18Risks of universal verifiers and biometrics
- 12:10Privado ID context-based unique IDs
- 17:22Privacy in decentralized identifiers
- 19:53Conclusion and future
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