SSL Certificate
Domain: Internet & Web
🎯 Motivation
A digital certificate that proves a website’s identity and enables HTTPS encryption.
📋 Concrete Example
SSL certificate: issued by a Certificate Authority. Contains: domain name, owner, expiration. Browser checks: is this certificate valid? Yes -> shows the lock icon. No -> warns the user.
🔗 Analogy
An SSL certificate is like a passport - it proves identity (this is really google.com) and is issued by a trusted authority (Certificate Authority). The browser checks it, just like immigration checks your passport.