Security Update Update on our TLS certificates Digital signature, eSign, emSigner, CertiNext, emCA, PrivaTrust and SecurePass are not affected · Updated 5 Nov 2026 Read the Update
Security Update Update on our TLS certificates Read the Update

How does Public Key Infrastructure (PKI) work step by step?

Public Key Infrastructure (PKI) operates using asymmetric cryptography and trusted certificate validation processes.

The process includes:

  • Key Pair Generation: A user or system creates a public and private key
  • Certificate Request: The public key is submitted to a Certificate Authority (CA)
  • Identity Verification: The CA validates identity credentials
  • Certificate Issuance: A digital certificate binds the public key to the verified identity
  • Secure Interaction: The certificate is used to encrypt data or verify digital signatures

This framework ensures secure communication, identity validation and compliance-ready digital transactions.

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