Configure Okta as a Key Manager

It is possible to integrate the MWARE ESB with an external Identity and Access Management server (IAM) using the Okta OAuth Authorization Server to manage the OAuth clients and tokens that are required by MWARE ESB. MWARE ESB has inbuilt support to consume APIs exposed by Okta OAuth.

Follow the instructions below to configure Okta as a third-party Key Manager:

Step 1 - Configure Okta

  1. Navigate to the Okta sign up page.

    Okta signup

    Create an Okta account and get the Okta instance URL.

    Example:

    https://dev-735404.okta.com

  2. Obtain the authorization server ID.

    1. Click API and then click Authorization Servers in the Okta Developer Dashboard.

    2. Create a new authorization server.

      Alternatively, you can use the default server.

      Okta authorization server

    3. Add a default scope.

      1. Select the authorization server (e.g., default) and click Scopes to navigate to the Scopes section.

      2. Create a new scope (e.g., default).

      3. Select Default Scope.

        Okta default scope

        Okta scope list

  3. Get the API key.

    1. Click API and then click Tokens in the Okta Developer Dashboard.
    2. Click Create Token and enter a name for the token.

    3. Copy the token value and keep it for future use.

      Okta token

  4. Create access policies.

    If you already have at least one access policy in your authorization server, skip the following steps and go to Step 1 - (5).

    1. Click API and then click Authorization Servers in the Okta Developer Dashboard.
    2. Select an Authorization Server.
    3. Click Access Policies and then click Add New Access Policy

    4. Enter the required information.

      Okta access policy

    5. Click Create Policy to save the policy.

  5. Create Rules for the Access Policy.

    If you already have at least one rule in your access policy, skip the following steps and go to Step 1 - (6).

    1. Click API and then click Authorization Servers in the Okta Developer Dashboard.
    2. Select the name of an authorization server, and select Access Policies.

    3. Select the name of an access policy, and click Add Rule.

      Okta rule

    4. Enter the requested information.

    5. Click Create Rule to save the rule.

  6. Create an OAuth application to get the credentials to access the introspect API:

    1. Click Applications and then click Add Application.

    2. Click Web and then click Next.

      okta add application introduction

    3. Navigate to the Grant type allowed section and select Client Credentials.

    4. After the application is created, note down the Client ID and Client secret that appears under the Client Credentials section.

  7. Note down the Authorization server's settings.

  8. Click API and then click Authorization Servers.

  9. Select the authorization server.

  10. Note down the settings related to the Authorization server.

    Okta authorization server settings

Step 2 - Configure MWARE ESB

  1. Start MWARE ESB.

  2. Sign in to the Admin Portal.

    https://<hostname>:9443/admin

    https://localhost:9443/admin

  3. Add a new Key Manager.

    1. Click Key Managers and then click Add Key Manager.

      Add new Key Manager

    2. Add the following Key Manager configurations.

      Okta Configuration

      Auto-filling Key Manager configurations

      The Key Manager configurations can be auto-filled by clicking the Import button after providing the well-known endpoint of Okta. The well-known-URL is the Metadata URI, under Settings section.

      The following table provides definitions for each of the Key Manager configurations.

      Configuration Description
      Name The name of the authorization server. Mandatory
      Display Name A name to display in the UI. Mandatory
      Description A brief description of the Key Manager. Optional
      Key Manager Type The type of the Key Manager to be selected. Mandatory
      Well-known-url

      The well-known URL of the Authorization Server (Key Manager).
      If the well-known URL is provided, other endpoints can be imported.
      Example:
      https://dev-599740.okta.com/oauth2/default/.well-known/oauth-authorization-server

      		 Optional
      Issuer The issuer that consumes or validates access tokens.
      Example:
      https://dev-599740.okta.com/oauth2/default      		 Optional
      Key Manager Endpoints
      Client Registration Endpoint

      The endpoint that verifies the identity and obtain profile information of the end-user based on the authentication performed by an authorization server.

      		 Optional if the well-known URI is provided.
      Introspection Endpoint The endpoint that allows authorized protected resources to query the authorization server to determine the set of metadata for a given token that was presented to them by an OAuth client. Optional if the well-known URI is provided.
      Token Endpoint The endpoint that issues the access tokens. Optional if the well-known URI is provided.
      Revoke Endpoint The endpoint that revokes the access tokens. Optional if the well-known URI is provided.
      Userinfo Endpoint The endpoint that allows clients to verify the identity of the end-user based on the authentication performed by an authorization server, as well as to obtain basic profile information about the end-user. Optional
      Authorize Endpoint The endpoint used to obtain an authorization grant from the resource owner via the user-agent redirection. Optional
      Scope Management Endpoint The endpoint used to manage the scopes. Optional
      Connector Configurations
      API Key The API key generated from section 6. Mandatory
      Client ID The client ID generated from section 6. Mandatory
      Client Secret The client secret generated from section 6. Mandatory
      Claim URIs This provides claim URIs for the consumer key and the scopes. Mandatory
      Consumer Key Claim URI The claim URI for consumer key
      Example:
      cid      		 Mandatory
      Scopes Claim URI The claim URI for scopes
      Example:
      scp      		 Mandatory
      Grant Types The supported grant types. Optional
      Certificates
      PEM Either copy and paste the certificate in PEM format or upload the PEM file. Optional
      JWKS The JSON Web Key Set (JWKS) endpoint is a read-only endpoint. This URL returns the Okta's public key set in JSON web key set format. This contains the signing key(s) the Relying Party (RP) uses to validate signatures from the Okta.
      Example:
      https://dev-599740.okta.com/oauth2/default/v1/keys       		Optional
      Advanced Configurations
      Token Generation This enables token generation via the authorization server. Optional
      Out Of Band Provisioning This enables the provisioning of Auth clients that have been created without the use of the Developer Portal, such as previously created Auth clients. Optional
      OAuth App Creation This enables the creation of Auth clients. Optional
      Token Validation Method The method used to validate the JWT signature. This is mandatory if the Token Validation Method is introspect
      Self Validate JWT The kid value is used to validate the JWT token signature. If the `kid value is not present, the gateway_certificate_alias is used. Optional
      Use introspect The JWKS endpoint is used to validate the JWT token signature. If this option is used to validate the tokens it is mandatory to add a Token Handling Option For Okta it should be JWT and it is required to specify a claim mapping as a unique identifier.
      Example:
      Claim Key : iss
      Claim Value : https://dev-599740.okta.com/oauth2/default       		Optional
      Token Handling Options This provides a way to validate the token for this particular authorization server. Optional This is mandatory if the Token Validation Method is introspect
      REFERENCE The tokens that match a specific regular expression (regEx) are validated.
      JWT The tokens that match a specific JWT is validated.
      CUSTOM The tokens that match a custom pattern are validated.
      Claim Mappings Local and remote claim mapping. Optional

Step 3 - Generate keys using the Okta Key Manager

  1. Sign in to the Developer Portal.

    https://<hostname>:9443/devportal

    https://localhost:9443/devportal

  2. Click Applications.

  3. Create a new application or use the default application.

  4. Click Sandbox Keys.

    Okta Developer Portal generate keys

  5. Select the Response Type.

  6. Click Generate Keys.

    Tip

    If you want to generate the tokens with scopes, those scopes should have been defined in Okta as mentioned in the Step 1 - (2) c.

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