X.509 Certificate

An X.509 certificate is a digital certificate that uses the X.509 public key infrastructure (PKI) standard to verify the identity of entities and secure communication over networks. It contains information such as the subject’s public key, the issuing certificate authority (CA), and validity dates. X.509 certificates are widely used in TLS/SSL protocols to enable secure HTTPS connections, ensuring that data exchanged between users and websites is encrypted and authenticated.In compliance and financial services, these certificates also play a role in securing digital identity, electronic signatures, and document authentication. By binding a public key to an entity’s identity, X.509 certificates prevent impersonation, support trust frameworks like eIDAS and NIST, and form the foundation for secure onboarding and transaction processes in banks, fintechs, and payment systems.