Cryptography 101 - Bob and Alice's Love Story

Love is an enigmatic and unifying force. It transforms us from mere pieces into something whole. Just like water is to life — vital and essential — so too is love for our existence. Today, I am privileged to share the basics of cryptography through a captivating tale—a love story between Bob and Alice. In this narrative, just as in real life, their love will not be without challenges. And it's within these hurdles that we can offer insights into how cryptography helps keep communication private and secure. Much like the complexities of love, cryptography is imperfect yet indispensable. This tutorial takes all of us (no prerequisite) together to explore how Bob and Alice use cryptographic methods to protect their most precious secrets from prying eyes. Challenges will arise—eavesdroppers, impostors, even betrayals. And that’s where we step in—to protect their love, one encrypted message at a time. #cryptography ## What is covered in this tutorial - - Symmetric Cryptography - Key Diversification - Asymmetric Cryptography - Certificates - Self-Signed Certificates - Man-in-the-middle attack - Certificate Authorities - PKI