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Which of the following number is valid for the probability of an event?

Which of the following security objectives aims at binding an identity to a subject?

In the Vigenère cipher, each letter in a secret key is associated with a numerical value (A=0, B=1, …, Z=25). If a letter from the secret key is ‘A’, what does the letter ‘A’ indicate?

Which of the following is true about integrity?

To implement cyclic shifts in a computer program, it is convenient to use               .

Which of the following is true about Vernam Cipher? (Select all that apply.)

What is true about the term ‘cipher’? (Select the best answer choice.)

Which of the following real-life scenarios requires confidentiality? (Select all that apply.)

Which of the following encryptions provides the notion of ‘perfect security’? (Select the best answer choice.)

Kerckhoffs’s second principle essentially states that security should not rely on the secrecy of an encryption algorithm. Why trying to keep the secrecy of the encryption method will not work? (Select all that apply.)