What is a Public Key Infrastructure (PKI)?
Public key infrastructure PKI is a form of cybersecurity that helps identify people and devices that connect or interact with hardware and/or software.
PKI is meant to facilitate the secure transfer of data, particularly sensitive data, such as credit card details and personal information.
PKI utilises a public key and private key to encrypt the data, to ensure authentication, confidentiality and data integrity – where the private key is used to decrypt the data from the public key.
The most common PKI being SSL/TLS certificates used by websites.
PKI acts as a means to issue a digital certificate to authenticate the identity of people, services and devices.
The process of registration and issuance of the digital certificate is carried out by a trusted third party known as a Certificate Authority.