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Caesar Box Cipher
 
The Caesar Box Cipher is a type of columnar transposition cipher, in which the plaintext is written downwards in columns, the text is then read off in rows to create the cipher text. Take the example below; the plaintext PURPLE HELL CIPHER TOOL has been split into 4 rows to give the ciphered message PLLPT UELHO RHCEO PEIRL: 
P L L P T 
U E L H O 
R H C E O 
P E I R L
To decode a Caesar Box Cipher, the simplest method is to count the number of letters in the ciphertext and divide into even rows until the plaintext message is readable. Occasionally however the encoded message does not form a neat box or has an odd number of letters, when this happens the 'extra' letters are added to the top rows first.

To encode a message using the tool below enter your message into the Plaintext box, select the number of rows, click the 'Create Box' button, then click the 'Encode' button to encrypt your message. To decode, enter your message into the Cipher Text box, select the number of rows then click the "Decode' button.

 
Cipher Tool
Number of rows      
 
Plaintext:
 
Cipher Text: