Columnar Transposition Cipher

Encrypt and decrypt text using the Columnar Transposition cipher. Uses a keyword to determine column order for rearranging text characters.

How to Use Columnar Transposition Cipher

Enter your text and a keyword, choose encrypt or decrypt mode, then click the button. The cipher arranges text in columns and reads them off in the alphabetical order of the keyword letters.

Step-by-Step Instructions

  1. Enter the text to encrypt or decrypt
  2. Enter a keyword (at least 2 letters)
  3. Choose encrypt or decrypt mode
  4. Click the button and copy the result

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