Transposition Cryptography/Examples/Arbitrary Example 1

Example of Transposition Cryptography

Let $\pi$ be the permutation described in two-row notation as:

$\begin {pmatrix} 1 & 2 & 3 & 4 & 5 \\ 3 & 5 & 2 & 1 & 4 \end {pmatrix}$

The plaintext would then be split into blocks of $5$ characters upon which $\pi$ would be applied.

Hence:

the corresponding ciphertext to the plaintext rugby would be bgryu

the corresponding ciphertext to the plaintext wales would be elwsa.

Sources

• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): transposition cryptography