Understanding CA Certificates: Configuring and Pushing via Intune

A Certificate Authority (CA) certificate is a digital certificate issued by a trusted organization known as a Certificate Authority. This certificate verifies the identity of entities (such as websites, email addresses, companies, or individuals) and binds them to cryptographic keys. CA certificates are essential for establishing secure, encrypted communication over networks, ensuring the authenticity and integrity of the data being exchanged.

How to Configure and Push CA Certificates via Intune

Step 1: Export the Root CA Certificate

1. Log into the Root Certification Authority server with an Administrator Account.

2. Export the Root CA Certificate:

   • Open the Certification Authority console.

   • Right-click on the CA name, select All Tasks, and then Back up CA.

   • Follow the wizard to export the root certificate as a .cer file.

     
     

Step 2: Create a Trusted Certificate Profile in Intune

1. Sign in to the Intune Admin Center: Go to the Microsoft Intune admin center and sign in with your admin credentials.

2. Navigate to Devices: Select Devices > Configuration profiles > Create profile.

3. Select Profile Type: Choose Windows 10 and later as the platform, and Trusted certificate as the profile type.

4. Configure Profile Settings:

   • Enter a name and description for the profile.

   • Upload the exported root CA certificate (.cer file).

5. Assign the Profile: Assign the profile to the target groups (users or devices) within your organization.

   
   

Step 3: Monitor and Verify Deployment

1. Monitor Deployment: Use the Intune admin center to monitor the deployment status of the trusted certificate profile.

2. Verify Installation: Ensure that the root CA certificate is installed on the target devices by checking the Trusted Root Certification Authorities certificate store.

   
   

Benefits of Using CA Certificates with Intune

1. Enhanced Security: Ensures secure communication and data integrity by verifying the identity of entities.

2. Simplified Authentication: Reduces the need for usernames and passwords by using certificates for authentication.

3. Compliance: Helps meet regulatory and security compliance requirements.

4. Centralized Management: Simplifies the management and deployment of certificates across the organization.