Crate dtg_credentials 

Decentralized Trust Graph (DTG) Credentials

Re-exports

pub use accept::AcceptListEntry;

pub use accept::AdditionalMember;

pub use accept::PredicateAcceptList;

pub use accept::PredicateStatus;

pub use accept::RegistryAcceptList;

pub use statement::CredentialSubjectStatement;

pub use statement::ENDORSES_V1;

pub use statement::ObjectKind;

pub use statement::PRESENTED_V1;

pub use statement::PredicateProfile;

pub use statement::StatementObject;

pub use statement::VETTED_V1;

pub use statement::WITNESSED_V1;

pub use statement::check_predicate_iri;

Modules

accept

Which predicates a verifier accepts: the configuration that turns a well-formed VSC into a meaningful one.

authority

Verifying a chain of Verifiable Authority Credentials.

create

Builder methods for creating new entities.

delegation

Verifying a chain of Verifiable Delegation Credentials.

statement

Verifiable Statement Credentials (VSC): one type, many predicates.

Structs

AuthorityGrant

The authority object a CredentialSubject::Authority carries.

CredentialSubjectAuthority

Verifiable Authority Credential (VAC) subject.

CredentialSubjectBasic

id of the credential subject only

CredentialSubjectDelegation

Delegation Credential subject

CredentialSubjectMembership

Membership Credential subject

DTGCommon

All DTG Credentials follow a common structure.

DTGCredential

Defined DTG Credentials

DelegationGrant

The delegation object a CredentialSubject::Delegation carries.

WitnessContext

The witnessContext a WITNESSED_V1 statement MAY carry: context of the witnessing event.

Enums

CredentialSubject

This represents all possible credential subjects The order of the enum is important as it will match on first match

DTGCredentialError

Errors related to DTG Credentials

DTGCredentialType

DTG VC Type Identifiers — the concrete DTGCredential subtypes the v1 context defines.

IssuerScope

The correlation scope an issuer declares for its own identifier, carried as the REQUIRED top-level issuerScope of every DTG credential (DTG Core Credentials §Correlation Scope).

W3CVCVersion

What W3C VC Format is the credential using?

Constants

DTG_CONTEXT_V1

The frozen DTG credential context, version 1, which a DTG credential lists second.

MAX_JSON_DEPTH

The deepest JSON document this library will digest, sign or verify.

W3C_VC_V1_CONTEXT

The W3C VC Data Model 1.1 context, accepted in first position under DTG Core Credentials §Legacy System Compatibility. This library never emits it.

W3C_VC_V2_CONTEXT

The W3C VC Data Model 2.0 context, which a DTG credential lists first.

Functions

decode_digest_multibase

Decodes a digestMultibase value into the algorithm it names and the raw digest bytes.

digest_jsonDeprecated

A credential’s digest in the superseded sha256:<hex> encoding.

digest_multibase_json

The digest a DTG credential carries of another credential, computed over that credential in its wire form.

digests_match

Do two digestMultibase values refer to the same credential?

task_digest_multibase_json

The task digest of a Trust Task document, the value a credential carries as taskDigestMultibase alongside the taskContext that names the document.

verify_grant_with_public_key

Verifies a grant in its wire form before it is answered: that its issuer signed it, and that it is in force at at.