PKl refers to public key infrastructure.

The basic definition of PKI is very simple. The so-called PKI is a universal security infrastructure that uses public key concepts and technologies to implement and provide security services. PKI is a new security technology, which is composed of basic components such as public key cryptography, digital certificates, certificate issuing agencies and security policies about public keys.

PKI is a system that uses public key technology to achieve e-commerce security. It is an infrastructure that is used to ensure the security of network communications and online transactions. In a sense, PKI includes a security authentication system, that is, the security authentication system-CA system is an indispensable part of PKI.

Introduction

PKI public key infrastructure is a system or platform that provides public key encryption and digital signature services for the purpose of managing keys and certificates. An organization can establish a secure network environment by adopting a PKI framework to manage keys and certificates. PKI mainly includes four parts: X.509 format certificate and certificate revocation list CRL; CA operating agreement; CA management agreement; CA policy formulation.