Editing Transposition cipher (section)

=== Visual demonstration of double transposition ===
In the following example, we use the keys '''JANEAUSTEN''' and '''AEROPLANES''' to encrypt the following plaintext: "'''Transposition ciphers scramble letters like puzzle pieces to create an indecipherable arrangement."'''<gallery perrow="5">
File:Transposition step 1.png|'''Step 1:''' The plaintext message is written into the first grid (which has the key JANEAUSTEN).
File:Transposition step 1.5.png|The columns are read off in alphabetical order according to the key, into the next grid (see step 2).
File:Transposition step 2.png|'''Step 2:''' The columns from step 1 are written into the second grid (which has the key AEROPLANES).
File:Transposition step 2.5.png|The columns are read off in alphabetical order according to the key, into the next grid (see step 3).
File:Transposition step 3.png|'''Step 3:''' The ciphertext is often written out in blocks of 5, e.g. '''RIAES NNELI EEIRP''' etc.
</gallery>The colors show how the letters are scrambled in each transposition step. While a single step only causes a minor rearrangement, the second step leads to a significant scrambling effect if the last row of the grid is incomplete.