26154

Well done, you've cracked this code! Have you worked out this message has been enciphered? The letter 'a' has mapped to 'd' ,'b' to 'e' etc. This is called a caesar shift with a shift of three letters in this case. We also made things a little bit easier by leaving punctuation and the spaces between the words in. How did you decipher this? You may have tried looking for repeated three letter words such as 'the' or counted how many of each letter appeared in the ciphertext and guessed that the most common letter corresponds to 'e'. This second method is the basis of a method called frequency analysis and is very useful for monoalphabetic ciphers. If you know how to program, you can save yourself a lot of time by writing some codes to do it for you! Don't worry if you don't though, there are lots of ways you can do it. The 'find and replace' tool in a cord processing program can be very useful,just make sure you dont change again the letters you've already replaced! One way around this is to turn the whole message into lower case,and then use capitals for the decrypted message.The next message will be slightly harder, good luck!