Encryption v Encoding v Hashing | Enctyption at At-Rest, In-Transit, Application | PEM v CER v CA

In this video, I break down one of the most important pillars of secure system design — Encryption — with clear explanations and real-world examples. 🧠 What You’ll Learn: 🔹 Encoding vs Encryption vs Hashing  ▪ What’s the difference and when to use each 🔹 Types of Encryption:  ▪ Symmetric encryption  ▪ Asymmetric encryption 🔒 Levels of Encryption:  ▪ In-transit (TLS, HTTPS)  ▪ At-rest (database/file encryption)  ▪ At application-level (end-to-end encryption) 📁 Files & Certificates:  ▪ What are .pem, .cer, .crt, .key files  ▪ Role of Certificate Authorities (CAs)  ▪ How certificates help in verifying identity and securing communication Whether you're securing an API, storing sensitive user data, or building a distributed system — encryption plays a vital role. #SystemDesign #Encryption #CyberSecurity #SymmetricEncryption #AsymmetricEncryption #TLS #HTTPS #PEM #Certificates #Hashing #PublicKeyInfrastructure #DataSecurity #BackendEngineering #SecureArchitecture video chapters: 00:27 encoding 02:10 encryption 04:46 hashing 09:00 types of encryption 12:14 levels of encryption 16:11 files and certificate authorities