discussion

Julius Caesar used one of the earliest known cipher systems to communicate with Cicero in Rome while he was conquering Europe.  Caesar knew that there was a very high risk of ambush or spies when sending messages; therefore, he developed a cryptographic system now known as the Caesar cipher.  Please provide a detailed response to the below to include specific details and examples.

• What is the Caesar ROT3 Cipher?
• How does it work?
• Although the Caesar cipher is easy to use, it is easy to crack.  How would an attacker break a Caesar-style cipher?  

Try your hand!

1.  Encrypt the below message using the Caesar ROT3 cipher.

• I WILL BECOME A CRYPTOGRAPHIC GURU

2.  Decrypt the below message using the Caesar ROT3 cipher.

• FRQJUDWXODWLRQVBRXJRWLW

3.  Create a cipher of your own and see who can crack it!  Toward the end of the week, provide the solution to your cipher.