Question

30. "A key is a string of bits used by a cryp- tographic algorithm to transform plain text into ciphertext. "Which of the fol- lowing is capable of becoming a key in a cryptographic algorithm? (A) An integer values
(B) A square matrix
(C) An array of characters
(D) All of the above​

Answer 1

"A key is a string of bits used by a cryptographic algorithm to transform plain text into ciphertext. "Which of the following is capable of becoming a key in a cryptographic algorithm?

(B) A square matrix

Answer 2

Answer:

(D) All of the above.

Explanation:

A key is a string of bits used by a cryptographic algorithm to transform plain text into ciphertext. Any data type that can be converted into a string of bits can potentially become a key in a cryptographic algorithm. For example, an integer value can be represented in binary form, a square matrix can be flattened into a one-dimensional array, and an array of characters can be encoded using ASCII or Unicode. Therefore, all of the options are capable of becoming a key in a cryptographic algorithm.

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