You have been hired by a local company to consult with its security staff on enc

Question

You have been hired by a local company to consult with its security staff on encryption techniques. The staff has not been formally trained, so you will be demonstrating the principles of encryption through some simple exercises.

Use a 2-stage transposition technique to encrypt a message. The following information is what is needed to do this encryption:

•Key: 2314756

•Message: The transposition cipher technique works by permuting the letters of the plaintext. It is not very secure, but it is great for learning about cryptography (ignore the comma and the period in the message). Prepare a 2–3-page Word document that explains this encryption technique. You should also include details as to how you arrived at your answer.

Explanation / Answer

There are various ciphers technique in tranposition.

With the key 2314756 we need to read the text in that order.

Let us take a plain text THEY ARE SUPERMAN AND BATMAN DAWN OF JUSTICE YO MAN

I have written this text in matrix form and now I will use the key mentioned 2314756 to get the encrypted text.

1 2 3 4 5 6 7

T H E Y A R E

S U P E R M A

N A N D B A T

M A N D AW N

O F J U S T I

C E YO M A N

Using the key 2314756 we will write the text in that order in crypt form.

HUAAFE EPNNJY TSNMOC YEDDUO EATNIN ARBASM RMAWTA

Here we have taken the column number mentioned with the key.

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