Public key infrastructure
Public key infrastructure
In cryptography, public key infrastructure is the arrangements in which the public key is linked with the user by the Certificate Authority CA. The user identity must be unique to each certificate issuer. This is done through special software in the certificate source, it can be This software is under human supervision, along with software that is coordinated in different locations and far between.
Each user has a user ID, a public key, a key binding to a specific user, validation of the key, and other characteristics that make the public key certificate issued by the certificate issuer not to be forged.