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ISEC312_UGQ2_S01

Authored by Thangavel Murugan

Computers

University

Used 7+ times

ISEC312_UGQ2_S01
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12 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Matrix multiplication can be done between A - 2 × 3 matrix and B - 3 × 4 matrix

True

False

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The resistance of the cipher to attack must be based only on the secrecy of the plaintext.

True

False

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In ____________attack, the attacker/cryptanalyst can select or choose the plaintext that is sent through the encryption algorithm and observe the ciphertext that it generates.

Known Plaintext Attack

Chosen Plaintext Attack

Chosen Ciphertext Attack

Ciphertext only

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In monoalphabetic substitution, the relationship between a symbol in the plaintext to a symbol in the ciphertext is always _________

many to many

one to one

one to many

many to one

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Perform Cryptanalysis of Additive Cipher and determine the key with the ciphertext “XQJUDGHGTXLC”.

6.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Perform encryption for Multiplicative cipher with “is” as plaintext and key as 11.

7.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Perform decryption for Affine cipher with “QP” as ciphertext and key as k1 = 5 & k2 = 2.

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