Certificate-Based Authentication Services leverage digital certificates as a secure and verified credential for authenticating users, devices, or applications. By using certificates issued by a Certificate Authority (CA) within a Public Key Infrastructure (PKI), this service ensures that only verified entities can access sensitive resources. Digital certificates contain a public key and a digital signature from the CA, and when a user attempts to log in, the service verifies the certificate's authenticity. Widely used in enterprise environments and B2B communications, this service enables secure, certificate-based access without the need for passwords. Key Features: * Integrates with PKI to verify identities with cryptographic keys. * Supports device-based authentication for IoT and remote access. * Enforces strong cryptographic standards for secure communications. * Suitable for high-assurance access to sensitive applications and networks.