Enum DTGCredentialType 

#[non_exhaustive]
pub enum DTGCredentialType {
    Membership,
    Relationship,
    Invitation,
    Persona,
    Endorsement,
    Witness,
    Authority,
    Delegation,
    RCard,
}

TDG VC Type Identifiers

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Membership

Relationship

Invitation

Persona

Endorsement

Witness

Authority

Verifiable Authority Credential (VAC) — confers authority on a party to perform specified actions within a named scope governed by the issuer.

Merged into DTG Core Credentials at Working Draft 02 (trustoverip/dtgwg-cred-spec PR #29). Key control at invocation — a VAC is not a bearer credential — is implemented in crate::authority::verify_chain, ahead of PR #41 which states it normatively and removes the audience property it made redundant. Two further changes are in flight and not implemented here: revocation (PR #39) and a maxAttenuation ceiling (PR #40).

Delegation

Verifiable Delegation Credential (VDC) — establishes that one entity may act in another’s name.

Merged into DTG Core Credentials at Working Draft 02 (trustoverip/dtgwg-cred-spec PR #19).

RCard

👎Deprecated since 0.2.0:

The r-card is a verifiable data structure (VDS), not a DTGCredential subtype. It was removed from the DTG Core Credentials specification in Working Draft 01 and will be defined by the planned DTG Verifiable Data Structures specification. This variant will be removed in a future release.

R-Card is no longer a DTG credential type.

Trait Implementations

impl Clone for DTGCredentialType

fn clone(&self) -> DTGCredentialType

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for DTGCredentialType

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for DTGCredentialType

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl TryFrom<&[String]> for DTGCredentialType

type Error = DTGCredentialError

The type returned in the event of a conversion error.

fn try_from(types: &[String]) -> Result<Self, Self::Error>

Performs the conversion.