2. What is Encryption?

In a historical context, encryption is the act of codifying a message before sending it to the receiver. This ensures that third parties may never get their hands on our private messages.

You might recall the notorious Enigma Machine, from World War II, largely used by the rivals of Democratic States to encrypt sensitive messages. And you may have seen the Imitation Game-- which starred Benedict Cumberbatch as Alan Turing-- who helped British in decrypting the Enigma code. In simple terms, encryption means to systematically convert your message into code before sending it to the receiver.