PKI (Public Key Infrastructure)

Public Key Infrastructure (PKI) is the system of certificate authorities, digital certificates and policies that lets people trust that a public key really belongs to a website, person or organisation.

In public key (asymmetric) cryptography each party has a key pair: a public key shared with everyone and a private key kept secret. A certificate authority (CA), such as Let's Encrypt or DigiCert, verifies the owner and signs a certificate binding their name to the public key. Browsers trust a set of root CAs, so they can check a site's HTTPS certificate through a chain of signatures.

Authentication vs Authorization Brute Force Attack CSP (Content Security Policy)CSRF (Cross-Site Request Forgery)DDoS Attack Digital Signature Encryption End-to-End Encryption (E2EE)Hashing IDS and IPS (Intrusion Detection and Prevention)JWT (JSON Web Token)Malware

PKI (Public Key Infrastructure)

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