Struct DidDocument 

pub struct DidDocument {
    pub context: Vec<String>,
    pub id: String,
    pub controller: Option<DidController>,
    pub verification_methods: Vec<VerificationMethod>,
    pub authentication: Vec<VerificationRef>,
    pub assertion_method: Vec<VerificationRef>,
    pub key_agreement: Vec<VerificationRef>,
    pub capability_invocation: Vec<VerificationRef>,
    pub capability_delegation: Vec<VerificationRef>,
    pub service: Vec<Service>,
    pub also_known_as: Vec<String>,
}

A W3C DID Document.

Implements the complete DID Document data model per W3C DID Core §5. All optional fields serialize with skip_serializing_if to produce compliant JSON-LD output.

https://www.w3.org/TR/did-core/#did-documents

Fields

context: Vec<String>

JSON-LD context array. Always includes "https://www.w3.org/ns/did/v1".

id: String

The DID subject — this document’s own DID.

controller: Option<DidController>

The entity (or entities) authorized to make changes to this DID Document. When absent the subject is its own controller.

verification_methods: Vec<VerificationMethod>

All verification methods defined by this DID Document. Verification relationships reference VMs by their id.

authentication: Vec<VerificationRef>

Keys authorized to authenticate as the DID subject (W3C DID Core §5.3.1).

assertion_method: Vec<VerificationRef>

Keys authorized to issue verifiable credentials on behalf of the subject (W3C DID Core §5.3.2).

key_agreement: Vec<VerificationRef>

Keys used for key agreement / ECDH encryption (W3C DID Core §5.3.3).

Typically X25519 keys (separate from the Ed25519 signing key). Critical for NDA’s encrypted content tier.

capability_invocation: Vec<VerificationRef>

Keys authorized to invoke cryptographic capabilities (W3C DID Core §5.3.4).

Used in NDA’s access-control model — capability tokens reference VMs listed here.

capability_delegation: Vec<VerificationRef>

Keys authorized to delegate capabilities to others (W3C DID Core §5.3.5).

service: Vec<Service>

Service endpoints (W3C DID Core §5.4).

also_known_as: Vec<String>

Alternative identifiers for the same subject (URIs or DID strings). Used for zone succession: old zone DID lists new zone DID here.

Implementations

impl DidDocument

pub fn new_simple( did: impl Into<String>, key_id: impl Into<String>, public_key: &[u8], ) -> Self

Build a minimal DID Document with a single Ed25519 verification method.

pub fn ed25519_public_key(&self) -> Option<[u8; 32]>

Return the first Ed25519 public key bytes found in any verification method.

pub fn x25519_key_agreement_key(&self) -> Option<[u8; 32]>

Return the first X25519 key agreement public key bytes.

pub fn find_vm(&self, id: &str) -> Option<&VerificationMethod>

Find a verification method by its id.

pub fn is_controlled_by(&self, did: &str) -> bool

Whether this DID document lists the given DID as a controller.

If controller is absent, the subject is its own controller.

Trait Implementations

impl Clone for DidDocument

fn clone(&self) -> DidDocument

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DidDocument

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for DidDocument

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for DidDocument

fn eq(&self, other: &DidDocument) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for DidDocument

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for DidDocument