Encrypt the plain text message $``\text{EXTRANET}"$ using Transposition cipher technique with the following key :
$\begin{array} {|l|l|l|l|l|} \hline \text{3} & \text{5} & \text{2} & \text{1} & \text{4} & \text{(Cipher text)} \\ \hline \text{1} & \text{2} & \text{3} & \text{4} & \text{5} & \text{(Plain text)} \\ \hline \end{array}$
Using $`\text{Z'}$ as bogus character.
- $\text{TAXERTZENZ}$
- $\text{EXTRANETZZ}$
- $\text{EZXZTRZANZET}$
- $\text{EXTZRANZETZ}$