Dynamic Client Registration v3.2

Before you begin:

Deploy the Dynamic Client Registration v3.2 API.

According to the OBIE, the Account Servicing Payment Service Providers (ASPSPs) need to make sure that the TPPs can be registered in a seamless and ideally, a fully automated process. In order to avoid any obstacles that may occur, the OBIE requires the ASPSPs to provide the TPP responses real-time once the registration is processed. The Dynamic Client Registration (DCR) endpoint is capable of dynamically registering the clients with the ASPSP when the client sends a registration request with its metadata. This results in a registration response that includes a client identifier and the client metadata values registered for the client.

You can find the REST API documentation for Dynamic Client Registration v3.2 here.

This document explains how to utilize Dynamic Client Registration with WSO2 Open Banking.

Configuring dynamic client registration

Follow the steps below to configure the DCR API v3.2 in WSO2 Open Banking.

Uploading certificate to the client trust store

The ASPSP can upload the OB root and issuer certificates found in the below-mentioned locations to the client trust store of both WSO2 API Manager (WSO2 OB APIM) and Key Manager (WSO2 OB KM).

In sandbox environment, upload certificates from https://openbanking.atlassian.net/wiki/spaces/DZ/pages/252018873/OB+Root+and+Issuing+Certificates+for+Sandbox

In production environment, upload certificates from https://openbanking.atlassian.net/wiki/spaces/DZ/pages/80544075/OB+Root+and+Issuing+Certificates+for+Production

The client trust stores are located in the WSO2 OB APIM and WSO2 OB KM servers in the following locations respectively:

<WSO2_OB_APIM>/repository/resources/security/client-truststore.jks
<WSO2_OB_KM>/repository/resources/security/client-truststore.jks

Use the following commands to add the certificate to the client trust store:

Add root certificate

keytool -import -alias tpproot -file <OB_ROOT_CERT> -keystore client-truststore.jks -storepass wso2carbon

Add issuer certificate

keytool -import -alias tppissuer -file <OB_ISSUING_CERT> -keystore client-truststore.jks -storepass wso2carbon

Updating open-banking.xml

Open the <WSO2_OB_APIM_HOME>/repository/conf/finance/open-banking.xml file.

Set the <UseSoftwareIdAsApplicationName> property under the <DCR> property to true.

Setting this property to true ensures that the SoftwareId in Software Statement Assertion is used as the application name.

<DCR>
	<UseSoftwareIdAsApplicationName>true</UseSoftwareIdAsApplicationName>
</DCR>

Updating identity.xml

To display the DCR endpoint in OpenID Connect Discovery (https://<WSO2_OB_KM_HOST>:8243/.well-known/openid-configuration) :

Open the <WSO2_OB_KM_HOME>/repository/conf/identity/identity.xml file.
Update the value of the <OAuth2DCREPUrl> property with the DCR endpoint.

<OAuth2DCREPUrl>${carbon.protocol}://localhost:8243/open-banking/v3.2/register</OAuth2DCREPUrl>

Updating api-manager.xml

To store any properties retrieved from the SSA, add the server-level configuration to the <OB_AM_HOME>/repository/conf/api-manager.xml file as explained here . Ideally, place the following <ApplicationConfiguration> at the end of the file within the <APIManager> element.

For example, if you want to store software_client_id retrieved from the SSA created in the sandbox environment, the property name should look like: software_client_id_sandbox. Similarly, to store the software_client_id retrieved from the SSA created in a production environment, the property name should be: software_client_id_production. Make sure you add these properties as false, as required.

In addition to these, include software_jwks_endpoint in the SSA. This is required to obtain an application access token.

Click here to see api-manager.xml configurations

<ApplicationConfiguration>
    <ApplicationAttributes>
        <Attribute required="false">
            <Name>software_id_sandbox</Name>
            <Description>Software ID of the sandbox</Description>
        </Attribute>
        <Attribute required="false">
            <Name>software_id_production</Name>
            <Description>Software ID of the production</Description>
        </Attribute>
        <Attribute required="false">
            <Name>software_roles_sandbox</Name>
            <Description>Software roles of the sandbox</Description>
        </Attribute>
        <Attribute required="false">
            <Name>software_roles_production</Name>
            <Description>Software roles of the production</Description>
        </Attribute>
        <Attribute required="false">
            <Name>software_jwks_endpoint_sandbox</Name>
            <Description>JWKS endpoint of sandbox</Description>
        </Attribute>
        <Attribute required="false">
            <Name>software_jwks_endpoint_production</Name>
            <Description>JWKS endpoint of production</Description>
        </Attribute>
        <Attribute required="false">
            <Name>software_on_behalf_of_org_sandbox</Name>
            <Description>Software on behalf of org of sandbox</Description>
        </Attribute>
        <Attribute required="false">
            <Name>ssoftware_on_behalf_of_org_production</Name>
            <Description>Software on behalf of org of production</Description>
        </Attribute>
        <Attribute required="false">
            <Name>org_name_sandbox</Name>
            <Description>Org name of the sandbox</Description>
        </Attribute>
        <Attribute required="false">
            <Name>org_name_production</Name>
            <Description>Org name of the production</Description>
        </Attribute>
        <Attribute required="false">
            <Name>software_client_name_sandbox</Name>
            <Description>Software client name of the sandbox</Description>
        </Attribute>
        <Attribute required="false">
            <Name>software_client_name_production</Name>
            <Description>Software client name of the production</Description>
        </Attribute>
    </ApplicationAttributes>
</ApplicationConfiguration>

This is available only as a WUM update and is effective from November 13, 2019 (11-13-2019). For more information on updating WSO2 Open Banking, see Updating WSO2 Products .

To enable viewing both softwareClientName and softwareClientID in the API Store when UseSoftwareIdAsApplicationName is enabled, add the following configurations to the <WSO2_OB_APIM_HOME>/repository/conf/api-manager.xml file under < ApplicationConfiguration> within the < APIManager> element:

<Attribute required="false">
	<Name>software_client_name_sandbox</Name>
	<Description>Software Client Name of the sandbox</Description>
</Attribute>
<Attribute required="false">
	<Name>software_client_name_production</Name>
	<Description>Software Client Name of the production</Description>
</Attribute>

Once you follow the above instructions, notice the additional column Name , which displays softwareClientName as follows:

Configuring application deletion workflow

Sign in to the API Manager Management Console at https://<WSO2_OB_APIM_HOST>:9443/carbon, using the super admin credentials.
On the Main tab, click Resources > Browse.
Locate the /_system/governance/apimgt/applicationdata/workflow-extensions.xml registry file.
Click workflow-extensions.xml to edit the file.
Under the Content section, click Edit as text.

Update the ApplicationDeletion executor value as follows:

<ApplicationDeletion executor="com.wso2.finance.app.deletion.impl.ApplicationDeletionWorkflow"/>

Click Save Content.

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Registering an application

If your application has one or more Callback URLs that exceed the default sizes, increase the column sizes of the CALLBACK_URL columns.

The Callback URLs are stored in the database as follows:

Database	Table	Column	Default Size
`openbank_apimgtdb`	`AM_APPLICATION`	`CALLBACK_URL`	`varchar 512`
`openbank_apimgtdb`	`IDN_OAUTH_CONSUMER_APPS`	`CALLBACK_URL`	`varchar 1024`

To get the public transport and signing certificates, enrol the TPP in the Open Banking Directory and upload the Certificate Signing Request (CSR).

The API allows the TPP to request the ASPSP to register a new client. The process is as follows:

The TPP sends a registration request,

This is a POST request including an SSA (Software Statement Assertion) as a claim in the payload.
The SSA is sent as a signed JWT, which is obtained from the Open Banking Directory. This contains the client metadata.

The software statement (SSA) should be obtained from the Open Banking Directory by the TPP. The SSA is a signed JWT issued by the Open Banking directory.

The automated DCR process is carried out by calling a synapse API in the gateway. The registration request relies on Mutual TLS authentication for TPP authentication.
An example request sent to the DCR registration endpoint is shown below:

curl -X POST \
  https://<WSO2_OB_APIM_HOST>:8243/open-banking/v3.2/register \
  -H 'Content-Type: application/jwt'  \
  --cert <TRANSPORT_PUBLIC_KEY_FILE_PATH> --key <TRANSPORT_PRIVATE_KEY_FILE_PATH> \
  -d eyJ0eXAiOiJKV1QiLCJhbGciOiJQUzI1NiIsImtpZCI6IkR3TUtkV01tajdQV2ludm9xZlF5WFZ6eVo2USJ9.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.kq8UsDUcb6Ee55w4U4JhiifyUB0sSiTAnobLV1bwujfS2msdUfxDHqVjyrvx4NvPd54sXg3_k1EIRHLT4vT-zUkojqtWiB_v2ndo5UqvPUrIFoqY0IQznKBfD6cLlGQ0laYqxm_GJWAEdEv_O8Ggw_z1DMiZZRHF9Oln9zZtT95JcGeJ8JCQVDkaX_AM-fZrVaixfD4iBfy-n4H6LHCy94c1DrCM9wEGr7XfHLAVNdZe2Qbyjf1sVEPukK_ccw4AYcWUo3UJQ2WIKxZL4fBmb_3Z0ez9k31k6in86Hg4tHO9itXSVJvvzn8oAaYXXQrxfk4N1CojV3zk1bkhy6In3Q

The payload is a signed JWT payload. To sign it, use the signing certificate issued by the Open Banking Directory. The kid parameter of the header should match the values in the kid of the signing certificate provided by the Open Banking Directory.

Click here to see the format of the JWT payload once decoded.

{
  "typ": "JWT",
  "alg": "PS256",
  "kid": "DwMKdWMmj7PWinvoqfQyXVzyZ6Q"
}
{
  "iss": "9b5usDpbNtmxDcTzs7GzKp",
  "iat": 1601982042,
  "exp": 1607252442,
  "jti": "1601982046",
  "aud": "https://localhost:8243/token",
  "scope": "accounts payments",
  "token_endpoint_auth_method": "private_key_jwt",
  "grant_types": [
    "authorization_code",
    "refresh_token"
  ],
  "response_types": [
    "code id_token"
  ],
  "id_token_signed_response_alg": "PS256",
  "request_object_signing_alg": "PS256",
  "software_id": "9b5usDpbNtmxDcTzs7GzKp",
  "application_type": "web",
  "redirect_uris": [
    "https://wso2.com"
  ],
  "token_endpoint_auth_signing_alg": "PS256",
  "software_statement": "eyJhbGciOiJQUzI1NiIsImtpZCI6Ikh6YTl2NWJnREpjT25oY1VaN0JNd2JTTF80TlYwZ1NGdklqYVNYZEMtMWM9IiwidHlwIjoiSldUIn0.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.CA14ogdcpNwoHiIJoz6mTxNpM2wRrqiZAcbmK0RnDx2GDN3BHYnZG0Eq6VgyPbPrcRyfWl8jQs2ESsWc5JSBwejHbvpnx7kVByYkG44dhozaPANEZltNj4M912CgHeKPd_d0uID8dIUq8_s2kYMsoCccBqGyFTIymVK01HX_X_-T7npG_ovE8CLgilMFkijy5PiFC83hopxixeQfRgdmHCR_1boksbFDK3RPIEe5PiODvX8vlWB8iUGy7PGzZ0ikXBD0lx9p1AJEyYF3x1pCjsSH8tJC5E5CG0xZLQPPkT3A_SpjiUh5ElNdNcmTPow2LVSxP9QusN4vWpEMUNd9pw"
}
<signature>

Include the following claims in the body of the request payload;

Claim	Description	Source Specification	Optional	Comments
iss	Request issuer (the TPP)	[RFC7519]	NO
iat	Time of issuance of the request	[RFC7519]	NO
exp	Request expiration time	[RFC7519]	NO
aud	Request audience (the ASPSP)	[RFC7519]	NO
jti	The JWT ID	[RFC7519]	NO
redirect_uris	Registered URIs the TPP uses to interact with the ASPSP AS	[OIDC-R]	NO	Must match or be a subset of the software_redirect_uris claim in the SSA.
token_endpoint_auth_method	Specifies which token endpoint authentication method the TPP wants to use	[RFC7591]	NO	private_key_jwt: If requested, the OP should extract the TPPs JWKS location from the included software statement assertion. tls_client_auth and private_key_jwt are the only FAPI compliant authentication methods. WSO2 Open Banking supports both these methods.
grant_types	A JSON array specifying what the TPP can request to be supplied to the token endpoint as an exchange for an access token	[RFC7591]	NO
response_types	A JSON array specifying what the TPP can request to be returned from the ASPSP authorization endpoint	[RFC7591]	YES	ASPSPs may reject anything other than code.
software_id	The application name that is mentioned as `software_client_id` in the SSA.	[RFC7591]	YES	If specified, the software_id in the request must match the software_id specified in the SSA. ASPSPs can choose to allow multiple registrations for a given software client name and may take the software_id from either the SSA or the TPP as a hint.
scope	The scopes requested by the client (if not specified, default scopes are assigned by the AS)	[RFC7591]	YES	The minimum scope should be openid + whatever scopes are appropriate for the PSD2 role of the software. The scopes are space delimited values.
software_statement	The SSA issued by Open Banking identifier	[RFC7519]	NO
application_type	Specifies whether the application type is web or mobile	[OIDC-R]	NO	Must be web, if specified.
id_token_signed_response_alg	The algorithm with which the TPP expects to sign the id_token if an id_token is returned	[OIDC-R]	NO	Supported values must comply with [FAPI-RW] Section 8.6.
request_object_signing_alg	The algorithm with which the TPP expects to sign the request object if a request object is part of the authorization request sent to the ASPSP.	[OIDC-R]	NO	Supported values must comply with [FAPI-RW] Section 8.6.

The payload contains an SSA.

Click here to see a decoded SSA...

{
  "alg": "PS256",
  "kid": "Hza9v5bgDJcOnhcUZ7BMwbSL_4NV0gSFvIjaSXdC-1c=",
  "typ": "JWT"
}
{
  "iss": "OpenBanking Ltd",
  "iat": 1592364568,
  "jti": "3d1b3595efac4e36",
  "software_environment": "sandbox",
  "software_mode": "Test",
  "software_id": "9b5usDpbNtmxDcTzs7GzKp",
  "software_client_id": "9b5usDpbNtmxDcTzs7GzKp",
  "software_client_name": "WSO2 Open Banking TPP (Sandbox)",
  "software_client_description": "This TPP Is created for testing purposes. ",
  "software_version": 1.5,
  "software_client_uri": "https://wso2.com",
  "software_redirect_uris": [
    "https://wso2.com"
  ],
  "software_roles": [
    "AISP",
    "PISP"
  ],
  "organisation_competent_authority_claims": {
    "authority_id": "OBGBR",
    "registration_id": "Unknown0015800001HQQrZAAX",
    "status": "Active",
    "authorisations": [
      {
        "member_state": "GB",
        "roles": [
          "AISP",
          "PISP"
        ]
      },
      {
        "member_state": "IE",
        "roles": [
          "AISP",
          "PISP"
        ]
      },
      {
        "member_state": "NL",
        "roles": [
          "AISP",
          "PISP"
        ]
      }
    ]
  },
  "software_logo_uri": "https://wso2.com/wso2.jpg",
  "org_status": "Active",
  "org_id": "0015800001HQQrZAAX",
  "org_name": "WSO2 (UK) LIMITED",
  "org_contacts": [
    {
      "name": "Technical",
      "email": "mail@wso2.com",
      "phone": "+94771231234",
      "type": "Technical"
    },
    {
      "name": "Business",
      "email": "mail1@wso2.com",
      "phone": "+94771231235",
      "type": "Business"
    }
  ],
  "org_jwks_endpoint": "https://keystore.openbankingtest.org.uk/0015800001HQQrZAAX/0015800001HQQrZAAX.jwks",
  "org_jwks_revoked_endpoint": "https://keystore.openbankingtest.org.uk/0015800001HQQrZAAX/revoked/0015800001HQQrZAAX.jwks",
  "software_jwks_endpoint": "https://keystore.openbankingtest.org.uk/0015800001HQQrZAAX/9b5usDpbNtmxDcTzs7GzKp.jwks",
  "software_jwks_revoked_endpoint": "https://keystore.openbankingtest.org.uk/0015800001HQQrZAAX/revoked/9b5usDpbNtmxDcTzs7GzKp.jwks",
  "software_policy_uri": "https://wso2.com",
  "software_tos_uri": "https://wso2.com",
  "software_on_behalf_of_org": "WSO2 Open Banking"
}

The ASPSP validates the SSA based on the specifications provided in the Open Banking OpenID Dynamic Client (OIDC) Registration specification.
The ASPSP registers the client application using the metadata sent in the SSA.

If client creation is successful, the ASPSP responds with a JSON payload that describes the client that was created. The TPP can then use the client to access resources on the ASPSP's resource server.

If client creation is unsuccessful, the ASPSP responds with an error payload.

A sample response is given below:

{
   "client_id":"kbLnJJ_uQL2Ye68uaCRbPIJOR4Ua",
   "client_id_issued_at":1601991722,
   "redirect_uris":[
      "https://wso2.com"
   ],
   "grant_types":[
      "authorization_code",
      "refresh_token"
   ],
   "application_type":"web",
   "id_token_signed_response_alg":"PS256",
   "token_endpoint_auth_signing_alg":"PS256",
   "request_object_signing_alg":"PS256",
   "scope":"accounts payments",
   "software_id":"9b5usDpbNtmxDcTzs7GzKp",
   "client_secret":"4nvgJQ0eSffFTtlLrfp0DqIfoLsa",
   "client_secret_expires_at":0,
   "token_endpoint_auth_method":"private_key_jwt",
   "response_types":[
      "code id_token"
   ],
   "software_statement":"eyJhbGciOiJQUzI1NiIsImtpZCI6Ikh6YTl2NWJnREpjT25oY1VaN0JNd2JTTF80TlYwZ1NGdklqYVNYZEMtMWM9IiwidHlwIjoiSldUIn0.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.CA14ogdcpNwoHiIJoz6mTxNpM2wRrqiZAcbmK0RnDx2GDN3BHYnZG0Eq6VgyPbPrcRyfWl8jQs2ESsWc5JSBwejHbvpnx7kVByYkG44dhozaPANEZltNj4M912CgHeKPd_d0uID8dIUq8_s2kYMsoCccBqGyFTIymVK01HX_X_-T7npG_ovE8CLgilMFkijy5PiFC83hopxixeQfRgdmHCR_1boksbFDK3RPIEe5PiODvX8vlWB8iUGy7PGzZ0ikXBD0lx9p1AJEyYF3x1pCjsSH8tJC5E5CG0xZLQPPkT3A_SpjiUh5ElNdNcmTPow2LVSxP9QusN4vWpEMUNd9pw"
}

Generate a Client Credentials grant access token for the application using the following command:
Click here to see how to generate the client assertion...

[Back To Top]

Retrieving an application

The API allows the TPP to retrieve the details for a client that has already been registered. The request relies on Mutual TLS authentication and application access token ( Client Credentials grant type) for TPP authentication.

The request has one path parameter named ClientId. It specifies the ClientId of the application that the TPP wants to retrieve details.

If the request is successful and the identifier( ClientId ) matches the client to whom the Client Credentials grant access token was issued, the ASPSP returns details of the requested client
If the ClientId is unknown, the ASPSP responds with an Unauthorized status code and immediately revokes the access token

Given below is a sample request sent to the retrieving endpoint:

[Back To Top]

Updating an application

The API allows the TPP to request the ASPSP to modify one or more attributes related to an existing client. The request relies on Mutual TLS authentication and application access token (Client Credentials grant type) for TPP authentication.

The request has one path parameter named ClientId. It specifies the ClientId of the application that the TPP wants to modify. The TPP submits a JWS payload that describes the characteristics of the client to be modified. This must include all the claims, including the ones that will not be modified.

If the client is successfully modified, the ASPSP responds with a JSON payload that describes the client that was created.
If the ClientId is unknown, the ASPSP responds with an Unauthorized status code and immediately revokes the access token.
If client modification is unsuccessful, the ASPSP responds with an error payload.

[Back To Top]

Deleting an application

The API allows the TPP to request the ASPSP to delete an existing client. The request relies on Mutual TLS authentication and application access token (Client Credentials grant type) for TPP authentication.

The request has one path parameter named ClientId. It specifies the ClientId of the application that the TPP wants to delete.

If the request is successful and the ClientId matches the client to whom the Client Credentials grant access token was issued, the ASPSP must delete the client and invalidate long lived access tokens that were issued to the client
If the ClientId is unknown, the ASPSP responds with an Unauthorized status code and immediately revokes the access token

You can find a sample request sent to the retrieving endpoint below.

If the deletion is successful you will get a 204 No Content response.

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