What is PKI and why is it important for digital trust?

Public Key Infrastructure (PKI) is a framework that enables secure communication, authentication and data protection in digital environments using cryptographic key pairs and digital certificates. It forms the foundation of digital trust across online systems.

PKI works by:

  • Generating public and private key pairs
  • Issuing digital certificates through trusted Certificate Authorities
  • Verifying identity before enabling secure interactions
  • Encrypting and validating data exchanges

PKI ensures confidentiality, integrity and non-repudiation. It is widely used for SSL/TLS, digital signatures and identity authentication, helping organizations establish trusted digital ecosystems.