Richard Henerlau's Code Page

Here are some examples of codes that I like to write in.

CATSBDEFGHIJKLMNOPQRUVWXYZ
ABCDEFGHIJKLMNOPQRSTUVWXYZ

DOGSABCEFHIJKLMNPQRTUVWXYZ
ABCDEFGHIJKLMNOPQRSTUVWXYZ

FISHABCDEGJKLMNOPQRTUVWXYZ
ABCDEFGHIJKLMNOPQRSTUVWXYZ

All of these have passwords. The password in the first one is CATS, the password in the second one is DOGS, and the password in the third is FISH. The top alphabet is called the code alphabet. The bottom alphabet is the real, or plaintext alphabet.


All of the above codes are different examples of one type of code called the Julius Caesar Cipher.     (Join our chat room)     It was named after the Roman emperor Julius Caesar, who is said to have used such codes. Here is how it works. The top alphabet is the code alphabet, and the bottom is the real, or plaintext alphabet. You find the letter you are writing in the plaintext alphabet, then look at the code alphabet. The code alphabet will have a different letter, and that is the letter you write down.



ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFG
       ABCDEFGHIJKLMNOPQRSTUVWXYZ


The last one created the code by spaces, not using a password.

To test your skills at decoding, try to decode the following message. Type the letters you think it is, then click away from it. The message is encoded using one of the codes on this page. message: FBIIL Decoded:


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Go to Henry Hall Middle School's Home Page from here.return to Redwood High School's HomePage





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Richard Henerlau's Code Page    
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