AnonCreds
A verifiable credential format, originating in Hyperledger Indy and now a standalone specification, built around zero-knowledge proofs for strong selective disclosure and predicate proofs (for example proving age over a threshold). Widely used in ledger-based SSI ecosystems.
AnonCreds is the most privacy-capable credential format in production use, supporting predicate proofs so a holder can prove "over 18" without revealing a birth date, and unlinkable presentations so two verifiers cannot correlate the same holder. The trade-off is ecosystem weight: it needs its own revocation registry machinery and has less tooling than SD-JWT, which is why most government programs including the EUDI Wallet went with SD-JWT and mdoc instead.
See also: verifiable credentials, zero-knowledge proof, selective disclosure, SD-JWT
Related on Start with Identity
- GlossaryBBS Signature
A signature scheme that lets a holder reveal only a subset of the fields in a credential while keeping the issuer's single signature valid, without the issuer's
- GlossaryDecentralized Identifier (DID)
A W3C standard identifier that a subject controls without a central registry, resolvable to a document with keys and endpoints. A building block of decentralize
- GlossaryDID Document
The JSON document a DID resolves to, containing the subject's public keys, authentication methods, and service endpoints. It lets a verifier find the keys neede
- VendorHyperledger Indy, Aries & AnonCreds
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