Glossary

PKI (Public Key Infrastructure)

PKI is a set of technologies, policies and procedures for managing digital certificates and cryptographic keys, underpinning both secure internet communication and electronic signatures.

Full Definition

PKI operates on asymmetric cryptography: each participant has a key pair — private (secret, for signing) and public (shared, for verification). A certificate authority (CA) issues a digital certificate binding the public key to the owner's identity. Browsers, servers and email clients use PKI to verify HTTPS and digital signatures.

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