sd-jwt-examples

Issuing an SD-JWT with selective disclosure involves constructing an issuer-signed JWT where specific claims and array entries are marked for selective disclosure. This provides a practical issuance flow for verifiable credentials.

Key binding in SD-JWT is a mechanism used during the holder presentation flow to prove control over the presented credential. It is achieved by creating a Key Binding JWT that cryptographically binds the selectively disclosed claims to the holder's key.

Selective disclosure in Secure Data JWT allows a holder to reveal only a subset of the claims originally issued by the issuer. This mechanism protects non-disclosed claims while maintaining the overall verifiable credential integrity.

Yes, you can selectively disclose individual array entries in an SD-JWT. The issuance examples specifically demonstrate how to construct the issuer-signed JWT to enable selective disclosure of both individual claims and array entries.

The best way to understand SD-JWT implementation flows is by following practical examples that cover both issuance and presentation. These examples illustrate the construction of issuer-signed JWTs and the creation of holder presentations with key binding.

Understanding basic cryptography and JWT structures is necessary to implement SD-JWT verifiable credentials. The examples demystify the standard by providing step-by-step flows for issuance and presentation, including key binding mechanisms.