This article describes how to integrate RSA with Cloudflare using SAML Relying Party.

Configure RSA Cloud Authentication Service

1. Sign in to the RSA Cloud Administration Console.
2. Navigate to the Authentication Clients menu, and from the dropdown, select Relying Parties.
3. In the Relying Party Catalog, select Add a Relying Party and click Add for Service Provider SAML.
4. On the Basic Information page, enter a name for the application in the Name field and click Next Step.
5. In the Authentication tab, select SecurID manages all authentication.
6. Select Access Policy as required and click Next Step.

7. Provide the Service Provider details in the following format:
   1. Assertion Consumer Service (ACS) URL: https://<Domain-name>/cdn-cgi/access/callback.
   2. Service Provider Entity ID: This is the same as the ACS URL.

• The domain name can be extracted from your team domain name, which typically looks like <domain-name>.cloudflareaccess.com.
• You can find your team domain name in Zero Trust under Settings > Custom Pages (of Cloudflare).

8. In the SAML Response Protection section, select IdP signs assertion within response.
9. Under the User Identity section, select Show Advanced Configuration, then configure Identifier Type and Property as follows: 
   1. Identifier Type: Auto Detect 
   2. Property: Auto Detect

10. Click Save and Finish.
11. On the My Relying Parties page, click Edit dropdown for Cloudflare Relying Party and select Metadata to download the metadata.
12. Click Publish Changes to save your settings. After publishing, your application will be enabled for SSO.

Configure Cloudflare

1. Open the Cloudflare dashboard and on the left panel, select Zero Trust.

2. In Zero Trust section, go to Settings > Authentication > Login methods.
3. Select Add new and choose SAML.
4. Choose a descriptive name.
5. Upload the metadata file downloaded from RSA. The Single sign-on URL, IDP Entity ID, Signing Certificate, and Email attribute name will be auto-filled.
6. Select Save.
7. Select Test. This should be successful.