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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.

  1. $\text{TAXERTZENZ}$
  2. $\text{EXTRANETZZ}$
  3. $\text{EZXZTRZANZET}$
  4. $\text{EXTZRANZETZ}$
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Plain Text

1 2 3 4 5 1 2 3 4 5
E X T R A N E T Z Z

Cipher Text

3 5 2 1 4 3 5 2 1 4
T A X E R T Z E N Z

Answer is  option A

Answer:

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