Struct CredentialVerifier 

pub struct CredentialVerifier;

Verifier for Verifiable Credentials.

Performs structural validation, expiry checks, and subject matching. Cryptographic proof verification requires the issuer’s public key, which must be resolved via the DID Document.

Implementations

impl CredentialVerifier

pub fn verify_structure( credential: &VerifiableCredential, ) -> Result<(), CredentialError>

Verify a credential’s structure and expiry.

Checks:

• The credential has a non-empty id
• The type array includes “VerifiableCredential”
• The subject has a non-empty id
• The credential has not expired

This does NOT verify the cryptographic proof (that requires the issuer’s public key resolved from their DID Document).

pub fn is_expired(credential: &VerifiableCredential) -> bool

Check if a credential has expired.

Returns false if the credential has no expiration date.

pub fn verify_subject( credential: &VerifiableCredential, subject_did: &str, ) -> bool

Verify the credential was issued for the given subject DID.