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Tutorial: Configure Experian with Azure Active Directory B2C

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In this tutorial, learn how to integrate Azure Active Directory B2C (Azure AD B2C) with Experian CrossCore, a service that verifies user identification. It does risk analysis based on information provided by the user during sign-up. CrossCore permits users to sign in, or not.

Learn more about Experian solutions, services, etc.

In this tutorial, you can use the following attributes in CrossCore risk analysis:

  • Email
  • IP Address
  • Given Name
  • Middle Name
  • Surname
  • Street Address
  • City
  • State or Province
  • Postal Code
  • Country or Region
  • Phone Number

Prerequisites

To get started, you'll need:

Scenario description

The Experian integration includes the following components:

  • Azure AD B2C: The authorization server that verifies user credentials, also known as the identity provider (IdP)
  • Experian CrossCore: The service takes inputs from the user and verifies their identity
  • Custom REST API: This implements the integration between Azure AD B2C and CrossCore

The following architecture diagram shows the implementation.

Diagram of the Experian architecture.

  1. User arrives at sign-in page, creates a new account, and enters information. Azure AD B2C collects user attributes.
  2. Azure AD B2C calls the middle-layer API and passes the user attributes.
  3. Middle-layer API collects user attributes and transforms it into an Experian CrossCore-ready format. Then, sends it to Experian CrossCore.
  4. Experian consumes the information validates user identification based on risk analysis. Then, it returns the result to the middle-layer API.
  5. Middle-layer API processes the information and sends relevant information in a JSON format to Azure AD B2C.
  6. Azure AD B2C receives information from middle-layer API. With a failure, an error message appears. With success, the user is authenticated and written into the directory.

Onboard with Experian

  1. Create an Experian account. To get started, go to Experian and scroll to the bottom for the contact form.
  2. When an account is created, you receive information for API configuration. The following sections continue the process.

Configure Azure AD B2C with Experian

Deploy the API

  1. Deploy the partner-integration to an Azure service: Go to /CrossCoreIntegrationApi.sln.
  2. Publish the code from Visual Studio.

Note

Use the deployed service URL to configure Microsoft Entra ID with the required settings.

Deploy the client certificate

The Experian API call is protected by a client certificate, provided by Experian.

  1. Follow the instructions in Private client certificate.
  2. Upload the certificate to the Azure App service.

The sample policy has two steps:

  1. Upload the certificate.
  2. Set the WEBSITE_LOAD_ROOT_CERTIFICATES key with the thumbprint of the certificate.

Configure the API

Application settings can be configured in the App service in Azure. Use this method to configure settings without checking them into a repository.

Provide the following application settings to the REST API:

Application settings Source Notes
CrossCoreConfig:TenantId Experian account configuration N/A
CrossCoreConfig:OrgCode Experian account configuration N/A
CrossCore:ApiEndpoint Experian account configuration N/A
CrossCore:ClientReference Experian account configuration N/A
CrossCore:ModelCode Experian account configuration N/A
CrossCore:OrgCode Experian account configuration N/A
CrossCore:SignatureKey Experian account configuration N/A
CrossCore:TenantId Experian account configuration N/A
CrossCore:CertificateThumbprint Experian certificate N/A
BasicAuth:ApiUsername Define a username for the API Used in the ExtId configuration
BasicAuth:ApiPassword Define a password for the API Used in the ExtId configuration

Create API policy keys

Refer to Custom policy starter pack to create two policy keys, one each for:

  • API username
  • API password you defined for HTTP basic authentication

Note

Later, you will need the keys for configuring the policies.

Replace the configuration values

In the partner-integration custom policies, find the following placeholders and replace with the corresponding values from your instance

Placeholder Replace with value Example
{your_tenant_name} Your tenant short name "yourtenant" from yourtenant.onmicrosoft.com
{your_trustframeworkbase_policy} Azure AD B2C name of your TrustFrameworkBase policy B2C_1A_experian_TrustFrameworkBase
{your_tenant_IdentityExperienceFramework_appid} App ID of the IdentityExperienceFramework app configured in your Azure AD B2C tenant 00001111-aaaa-2222-bbbb-3333cccc4444
{your_tenant_ ProxyIdentityExperienceFramework_appid} App ID of the ProxyIdentityExperienceFramework app configured in your Azure AD B2C tenant 00001111-aaaa-2222-bbbb-3333cccc4444
{your_tenant_extensions_appid} App ID of your tenant storage application 00001111-aaaa-2222-bbbb-3333cccc4444
{your_tenant_extensions_app_objectid} Object ID of your tenant storage application aaaaaaaa-0000-1111-2222-bbbbbbbbbbbb
{your_api_username_key_name} Username key name, made in Create API policy keys B2C_1A_RestApiUsername
{your_api_password_key_name} Password key name, made in Create API policy keys B2C_1A_RestApiPassword
{your_app_service_URL} App service URL you set up https://yourapp.azurewebsites.net

Configure the Azure AD B2C policy

Refer to Custom policy starter pack for instructions to set up your Azure AD B2C tenant and configure policies.

Note

This sample policy is based on Active Directory B2C custom policy starterpack/LocalAccounts.

Tip

We recommend that customers add consent notification in the attribute collection page. Notify users that information goes to third-party services for identity verification.

Test the user flow

  1. Open the Azure AD B2C tenant and under Policies select User flows.
  2. Select your previously created User Flow.
  3. Select Run user flow.
  4. Application: the registered app (example is JWT).
  5. Reply URL: redirect URL.
  6. Select Run user flow.
  7. Complete sign-up flow and create an account.
  8. Sign out.
  9. Complete sign-in flow.
  10. Select continue
  11. CrossCore puzzle appears.

Next steps