The below guide details how to export the public certificate from your ADFS.
- Launch ADFS Management.
- Select the certificate located under Token-signing.
- Right click on that certificate and then View Certificate.
- Navigate to the Details tab and click Copy to File.
Note: Do not export the private key if you have this option. Only export the public key.
- Select the DER export option.
- Click Next and follow any prompts.