Classical Encryption Techniques

Encryption and public keys | Internet 101 | Computer Science | Khan Academy

Cryptography

4 Ways To Send Files from Android to PC (& Vice-Versa)

People think if they never opened a file, it can’t be proven. That’s not true. Metadata can show when files existed, where they were stored, and how they were handled even if no one ever views them. I used this in real cases. And most people have no idea it works this way. Save this. This information matters.

Introduction to Data Encryption Standard (DES)

Introduction to Advanced Encryption Standard (AES)

Lec-83: Asymmetric key Cryptography with example | Network Security