Challenge 1 Explanation: Cryptography
Encoding and ciphering messages can be an effective method for sending secret messages; however, the cipher that is used must be very complex and hard to decode to be effective. In this lesson, we learned about a simple cipher that was developed around 50 B.C. for Julius Caesar. In its day, the cipher was complex enough to secretly relay messages, but in the modern, world the ROT cipher is very weak and offers little secrecy. To be effective today, a cipher must be incredibly complex and hard to decode.
In this lesson, we learned about the ROT, or Caesar, cipher and how to decode it by hand, as well as decoding it using CyberChef. In this explanation we will be using CyberChef to decode the message.
First, we open CyberChef and input the encoded message into the “Input” box.
Use the serach tool to search for the “ROT13” cipher and drag-and-drop it into the “Recipe” box. Now you should see the decoded message and the answers to the questions.
