Try this activity to learn how to create your own “Caesar cipher,” a popular type of code that is easy to learn. Background Cryptography is the study of writing or solving secret codes that ...

Caesar’s Cipher with shift 3. Credit: Don’t Know / Wikimedia Commons But the first recorded use of a substitution cipher corresponds to none other than Julius Caesar, who used it in his private ...

Save guides, add subjects and pick up where you left off with your BBC account. Caesar cipher is a very simple encryption method and is easily cracked if one studies the frequency of repeating ...

Save guides, add subjects and pick up where you left off with your BBC account. A cipher is a code used to protect information that is being stored or communicated, so that only people who are ...

Unsolved! spans a huge arc of time and space, from Julius Caesar's simple substitution cipher to composer Edward Elgar's 1897 Dorabella Cipher — a still-unsolved letter to Dora Penny ...