SD-JWT-based Verifiable Digital Credentials (SD-JWT VC)#
IETF 124 (Montreal) digest Program Core pick Montreal · 1–7 November 2025
Oliver Terbu (MATTR), Daniel Fett (Authlete), Brian Campbell (Ping Identity) — OAuth WG document
- Why: The leading JSON format for selectively disclosable verifiable credentials (the format behind most government/wallet pilots); this session shows it converging to working-group last call.
- What: Data formats plus validation and processing rules for verifiable credentials with JSON payloads, with and without selective disclosure, built on SD-JWT and the JWT extensibility model; defines issuer signature mechanisms (web-based metadata via
.well-known/JWKs, inlinex5c) and Type Metadata (claim schemas, rendering/display metadata). - How: The
-11/-12churn is stabilization:vct#integrityadded to the non-disclosable claim list, Status List tokens must be JWTs,lang→locale, JSON schema removed from Type Metadata,x5crequired in the protected header,sd=always/sd=neverrecommended to avoid ambiguity, and the relationship to Key Binding (SD-JWT+KB) clarified. The slides close with "WGLC?" - Where applicable: Digital credential ecosystems — government IDs, enterprise credentials, wallets. WG document on the cusp of last call; if your identity roadmap touches credentials at all, this is the format to build against.