| Data format and validation rules to express VC | SD-JWT VC (draft-ietf-oauth-sd-jwt-vc-08) | Enables selective disclosure and cryptographic binding of claims in a Verifiable Credential. |
| VC issuance | OpenID for Verifiable Credential Issuance (Implementors Draft v1) | Defines how an Issuer and a Wallet perform the issuance flow (pre-authorized code flow, credential offer/response). |
| Holder binding | SD-JWT VC | Ensures the Verifiable Credential is bound to the holder's wallet. |
| VC presentation | OpenID for Verifiable Presentations (OID4VP 20) | Describes how a Holder presents credentials (Verifiable Presentations) to a Verifier, including request and response flows. |
| VC Revocation | OAuth 2.0 Credential Status List (draft-ietf-oauth-status-list-05) | Defines a status list mechanism for revocation checks (active/revoked) so Verifiers can ascertain a credential's validity. |
| Decentralized Identifiers | did:web | Specifies a method for hosting DID documents on HTTPS web domains, enabling domain-based DID resolution for key material. |
| Cryptographic Suites | P-256 (secp256r1), ES256 (JWT) | Establishes Elliptic Curve Digital Signature (ECDSA) requirements for signing and signature validation (SHA-256 hashes). |