Certificate-Based Authentication

Certificate-Based Authentication is a security method that verifies a person's or device's identity using digital certificates. These certificates are like online IDs issued by trusted authorities, confirming that the entity is genuine. When accessing a secure system, the entity presents its certificate; the system then checks its validity and authenticity. This process ensures that only trusted users or devices can gain access, enhancing security without needing passwords. It’s commonly used for websites, email, and VPNs to protect sensitive information and ensure secure communication.