Overview

Public Key Infrastructure (PKI) is an asymmetric key infrastructure to encrypt and decrypt data for securing network services. Data encrypted with the public key can be decrypted only with the private key. Likewise, data encrypted with the private key can be decrypted only with the public key.

PKI uses digital certificates to distribute and employ public keys, and provides network communication and e-commerce with security services such as user authentication, data confidentiality, and data integrity.