Step 1: Create a Sample WCF Service Step 2: Configure wsHttpBinding with Certificate Authentication and Message Security Step 3: Create and Install a Service Certificate Step 4: Configure the Service Certificate for the WCF Service Step 5: Create a Test Client Step 6: Add a WCF Service Reference to the Client Step 7: Create and Install the Client Certificate for Authentication Step 8: Configure the Client Certificate in the WCF Client Application Step 9: Test the Client and WCF Service