I have always had a particular fondness for this cipher. When I first embarked upon a serious exploration of cyber security, I found the introductory Caesar and Rot13 ciphers, ubiquitous staples of cryptographic tutorials, rather tiresome. They seemed closer to simple encoding exercises than true encryption methods. The Vigenère cipher,

You're still here! That means I haven't bored you, or you just really want to make a blockchain crypto. If this isn't the first post you're reading, you should know it's actually part 3 of my Blockchain crypto series. Check