A tool for enciphering, deciphering, and cryptanalyzing full rectangle columnar transposition ciphers
First enter a keyword and the desired padding character. Then enter plaintext in the "Plaintext" box and click "Encipher" or enter ciphertext in the "Ciphertext" box and click "Decipher"
Enter ciphertext in the "Ciphertext" box, select a rectangle size, drag around the columns to figure out the plaintext.