Authorization endpoint for gaining token used for API requests requiring bearerAuth.

You will be provided the required client_id and client_secret as part of onboarding.

A custom domain allows the display of your credentials or presentation requests to be rendered under the domain your preference as a tenant on the Mattr VII platform.

The verifiable custom domain can be mapped with that of the issuer or verifier stated in a credential or presentation and allow for the following attributes to be defined and returned:

• Organisation Name
• Domain Name
• Logo
• Home Page

Returns

On Success, the response from the endpoint always include the Custom Domain

Retrieve the custom domain information and it's verification status for your Mattr VII tenant.

Delete the custom domain.

By deleting your existing custom domain it will break the linkage with any credentials issued under the custom domain, in turn causing issues when holders of those credentials go to present them.

Update the custom domain.

Follows the same structure as the Create a Custom Domain endpoint.

Verifies that you have control of the custom domain by examining the TXT record of the domain.

Returns a list of Decentralized Identifier (DID) Configuration entries from the tenant.

See https://identity.foundation/.well-known/resources/did-configuration/

These entries are automatically configured for all DIDs created by the tenant and is used for any party wanting to establish the relationship between domain ownership and the DIDs by exposing cryptographic proofs.

This endpoint is unprotected, public facing and can be deterministically found at the root of the tenant subdomain or alias by any party wishing to discover the domain to DID relationship.

When the DID is retrieved by the DID provided in the path, the DID Document is also attempted to be resolved by using the DID method and method identifier, this may involve a network call depending on the method involved.

Example:

did:key:z6Mkjr7vfzBfamiN6Wi6cyQUgTq6CEMXP1MzWQawsUEXJoa9 - the public key is encapsulated in the DID did:ion:EiBbvWpBHPql_2W9sObr4vPFl9k9InEDYOEDXvPPRDRyBg - will be resolved on the ION network did:web:mattr.global - will be resolved by accessing the /.well-known/did.json of the domain

Returns

If the DID Document is publicly resolvable it is returned along with meta-data already held about the DID by the tenant;

• didDocument: See our tutorials on MATTR Learn to understand more about the anatomy of the DID Document for each method.
• registrationStatus: Ledger-based DIDs may incur a lag in processing to the ledger. Also for DIDs that require additional actions (e.g. did:web) this status will be update from PROCESSING to COMPLETED once publicly resolvable.
• localMetadata: This includes the initial DID document that the platform expects to find publicly resolvable.

Deletes a DID and all associated metadata including the Private keys from the platform and KMS. For ledger-based DIDs the public DID Document will still be available. For did:web you can remove the did.json from your hosted domain.

Returns a list of all DIDs (Decentralized Identifiers) managed by the tenant and their associated meta-data.

Takes a supported DID Method and generates keys and associated information for a new DID and registers the DID Document if applicable.

Methods supported:

• key
• web
• ion

Options: The options parameter is used to define further configuration when creating the DID, the available options vary between methods.

Note: W3C DIDs are an emerging standard at the W3C, DIDs issued during a trial on the MATTR VII platform may be subject to change, as you move into production workloads please get in touch to discuss your needs.

Creating did:key

A DID with a DID method of key can be created.

If no options are provided, a DID will be created with an ed25519 key type.

If the key type in options is set to bls12381g2 a DID will be created with a BLS key type which supports BBS+ signatures for issuing ZKP-enabled credentials.

A DID Key created with an experimental bls12381g2 key type can only be used for issuing credentials.

Creating did:web

A DID with a DID method of web can be created by specifying the domain where the DID document is going to be hosted in the options body.

If the key type in options is set to P-256 a DID will be created with a P-256 key type which compact credentials.

The returned initial DID Document then needs to be hosted so that it is accessible from the domain provided in the options, e.g. https://mattr.global/.well-known/did.json.

When the DID Document is not available for download from the domain, the Registration Status of the DID is PROCESSING.

Once the DID Document can be downloaded from the domain, the Registration Status will be COMPLETED.

Note that the tenant will be able to prove ownership of the keys associated with the did:web DID Document through the well-known endpoint, i.e. https://tenant.vii.mattr.global/.well-known/did-configuration, while the DID Document hosted on the domain links the DID to a domain.

Creating did:ion

A DID with a DID method of ion can be created.

Public DID Document is anchored by batching using the ION network, due to the lag incurred in registering the DID Document, which may take between 20-120 minutes, the registrationStatus will remain as PROCESSING until the DID Document can be retrieved from the public nodes.

Note: The creation of ION DIDs during a trial of the MATTR VII platform may be subject to change, as you move into production workloads please get in touch to discuss your needs.

Returns

The DID, associated metadata and registration status.

Unsupported Methods result in a 400 response with an "Invalid value" message.

Creates a signed message in the form of a JWS (JSON Web Signature) using the a specific Key from the DID (Decentralized Identifier) supplied in the request.

didUrl must be a reference to a key that supports signing. Use the authentication key value from the DID Document.

{
  "didDocument": {
    "@context": "https://w3.org/ns/did/v1",
    "id": "did:key:z6MkjBWPPa1njEKygyr3LR3pRKkqv714vyTkfnUdP6ToFSH5#z6MkjBWPPa1njEKygyr3LR3pRKkqv714vyTkfnUdP6ToFSH5",
    "authentication": [
      "did:key:z6MkjBWPPa1njEKygyr3LR3pRKkqv714vyTkfnUdP6ToFSH5#z6MkjBWPPa1njEKygyr3LR3pRKkqv714vyTkfnUdP6ToFSH5#z6MkjBWPPa1njEKygyr3LR3pRKkqv714vyTkfnUdP6ToFSH5#z6MkjBWPPa1njEKygyr3LR3pRKkqv714vyTkfnUdP6ToFSH5"
    ]
  }}

Returns

A JWS in compact serialization form signed by the did supplied in the request

Provide a signed payload in the form of a JWS (JSON Web Signature) that has been signed by a DID (Decentralized Identifier) and get a response indicating if the signature verification was successful and the DID that was used to originally sign the payload.

One use case for verifying a JWS with a DID is when the Mobile Wallet App sends a Request Object to an OpenID Provider as part of the Authorization Code Flow (as per https://openid.net/specs/openid-connect-core-1_0-final.html#RequestObject). The Request Object is wrapped in a JWS with a signature that is generated from the Subject DID on the mobile app. Therefore verifying the JWS proves that the mobile app has access to the private key of the Subject DID.

Returns

Indicates if the JWS payload was untampered and that the signature is valid by verifying that the kid in the JWS header is the same as the iss value in the Request Object, which could for instance be the Subject DID. The DID used is returned as both the full didUrl including fragment pointer to the DID Document and the did which can be used for Credential creation.

Encrypts a payload using a JWM format.

The senderDidUrl must be a reference to a key that supports key agreement. Use the id value from the keyAgreement list in the DID Document.

"keyAgreement": [
        {
          "id": "did:key:z6Mko4PvuwKzmjtaKTEV6ZhMSYqX5myTSe3L3Md4feiwCoua#z6LSkKk8HK73jYfUQRBHX3Qeb1Agv39qVNFn7n2PjRvjpPcy",
          "type": "X25519KeyAgreementKey2019",
          "controller": "did:key:z6Mko4PvuwKzmjtaKTEV6ZhMSYqX5myTSe3L3Md4feiwCoua",
          "publicKeyBase58": "9eZxm1JBe5wjK2oWzPthGQxD4tcinm5dEoJiEyHD71rD"
          }
      ]

Returns

Decrypt a message where the tenant manages the Keys for the recipientDidUrl

Send an encrypted JWM format DIDComm message to a DID service endpoint.

In order to successfully route messages to their intended recipients the endpoint will resolve a public DID Document and look-up the service endpoint.

This endpoint only accepts Encrypted JWM payloads to ensure that messages sent for recipients are encrypted-at-rest whilst in messaging inboxes. The JWM should be encrypted for the recipient based on a key available in the DID Document.

Creates a Verifiable Credential (VC or just Credential) in a JSON-LD format adhering to the W3C VC Data Model spec.

Creating the Payload:

The values required by the operation are validated where available and used to construct the Verifiable Credential.

The Credential is issued using JSON-LD with linked data proofs, the type values of the Credential and the Subject Claims must be represented by a schema in @context.

The schema https://www3.org/2018/credentials/v1 is always required in addition any @context values, so that the Credential can be referenced.

The type value of VerifiableCredential must be used as the first value in the array to conform to the W3C VC Data Model spec.

Subject Identifiers

In general, the Subject identifier in the subjectId field should have been authentically bound to the subject and authenticated against the information used in the claims, for example by using an OpenID Connect authentication flow or another mechanism including out-of-band processes.

Credentials may be issued without subject identifiers, this covers uses-cases, where the credential cannot or does not need to be adequately bound to a Subject DID and may be treated as a bearer credential or reissued at a later time once the credential can be bound.

ZKP-enabled BBS+ credential:

If you wish to issue a ZKP-enabled Verifiable Credential, the provided issuer id must be a did:key with a key type of bls12381g2. The platform will automatically detect this capability and issue a ZKP-enabled BBS+ credential. Note that the schema https://w3c-ccg.github.io/ldp-bbs2020/context/v1 will automatically be added to the @context in the credential.

During Preview this feature is experimental. It may change over time and may require credentials to be reissued.

Credential meta-data:

Setting the persist value to true will store the entire credential contents as well as the meta-data on the platform. If set to false only the credential meta-data is held on the platform:

• id
• tag (optional)
• credentialStatus (optional)
• issuanceDate

The optional tag value can be used to externally reference the issued credential.

Returns

On success, the Verifiable Credential is always provided in the response along with meta-data. Subject bound credential should be delivered to the intended subject.

Returns a list of all credential data stored in the tenant.

In the list

Inside the data array, there is an body for each credential issued on the platform, in addition to the id the body will contain optionally added meta-data and may contain the entire credential contents if persist was invoked during credential creation.

Credentials issued via the OIDC Bridge are set not to be persisted.

Pagination

Pagination can be controlled by a cursor method using the cursorand limit query parameters. The nextCursor is found at the start of each returned range of credential entries and the limit determines how many entries are returned in that request, with a maximum value of 1000.

Not using a query parameter defaults the response to return the first range of credential entries with a limit of 100.

The optional tag filter or the Credential type can be used to retrieve credential data.

Get data for a previously created credential using its ID.

In addition to the id the body will contain optionally added meta-data and may contain the entire credential contents if persist was invoked during credential creation.

Credentials issued via the OIDC Bridge do not have their contents persisted.

Remove all stored credential data from the tenant using its ID.

The entire entry including meta-data and the credential contents is removed from the system and cannot be recovered.

Send any JSON-LD Verifiable Credential that conforms to the W3C Verifiable Credentials data model to perform verification checks and return a response:

• Issuer DID can be resolved
• JSON-LD context is valid for subject claims
• Proof is valid & the credential has not been tampered with
• Is not in a revoked status on a RevocationList2020 This endpoint can be used to check any Credential issued by any service provider.

A credential can be revoked by setting the revocation status.

Retrieve the revocation status of a certain credential.

Returns

The revocation status of the credential

Retrieve the revocation list that contains the revocation status of a number of credentials.

Returns

The revocation list

Create a payload that can form a message in the JWM format that can be used in sending notifications to subjects based on the revocation status of their issued credentials.

• Use a DID setup on the tenant as the from value, this should be a DID with a key type suitable for messaging (not a BLS key type)
• Include a SubjectDID as the to value - this value is only used in the message construction, it should be the same value as the intended recipient.

To send a notification to the Subject DID holder, use the payload with the /messaging/encrypt and /messaging/send endpoints.

A Presentation Request Template defines which credentials are required for presentation. This is used to create the actual Presentation Request, which is used by the Mobile Wallet to select which credential it should display to the Holder, asking for confirmation to be used in the Presentation to be sent.

Creating the payload

The domain value must always match the domain of the tenant being used.

The name value is a convenience attribute for quickly determining the intended purpose of a created template.

The Presentation Request query follows the Verifiable Presentation Request Specification.

The following query methods have been enabled:

• Query by Example
• Query by Frame
• DID Auth

Query can accept an array of types, which makes is possible to construct complex presentation requests from the template, however creating a valid Presentation Template does not ensure that logically valid Presentation Request is created or that a credential holder would be able to satisfy the request.

Query by Example

This is a basic form of requesting credential information, it is possible to limit the request based on:

• Credential Type - based on the type of the credential
• Specific Trusted Issuer DIDs - an array of DIDs that the credential must have been issued by one of.

Query by Frame

Used primary for requesting specific claims from ZKP-enabled credentials, only the claims requested in the frame will be derived and sent in the presentation.

• Credential Type - If an array should match the exact type used in the Credential otherwise a string is required to be VerifiableCredential.
• CredentialSubject - request specific claims from a credential subject.
• Specific Trusted Issuer DIDs - an array of DIDs that the credential must have been issued by one of, ensure this DID is of a BLS key type that has issued a ZKP-enabled credential.

DID Auth

The type of Template will result in a DID Auth flow resulting in just the Subject DID from the holder to be provided in the response to the Presentation Request.

• DIDAuth

Returns

On Success, the response from the endpoint always include the Presentation Template ID, this UUID is required in OIDC Bridge Verifier instance setup and using the Verify using a Callback method. The Presentation Request endpoint uses this ID to determine the exact type of request message to create.

Returns a list of all Presentation Templates on the tenant.

Use the name value to determine the intended purpose of the templates.

Retrieve a Presentation Template by providing a template ID

Delete a Presentation Template

Update a Presentation Template using the template id.

Follows the same structure as the Create a Presentation Template endpoint.

Creates a short lived Presentation Request.

Creating the payload

A challenge can be used to correlate requests The DID is used a Verifier DID to prove the authenticity of the Request to holders Any callbackUrl provide will be called on receipt of the response to the Presentation Request. If no expiresTime is provided, a default of 5 minutes will be used.

Returns

The request object holds the Presentation Request in the form of a constructed JWM message.

The request needs to be signed and conveyed to the holder, using techniques like a QR, deeplink or encrypted and sent via a notification message.