Computer Cryptography MCQ Question with Answer

Question No : 29
Which of the following ciphers is a block cipher?

Question No : 30
Which of the following ciphers uses asymmetric key cryptography?

Question No : 31
Block ciphers accumulate symbols in a message of a ______.

Question No : 32
With symmetric key algorithms, the ____ key is used for the encryption and decryption of data.

Question No : 33
____ is the message or data that can be readable by the sender.

Question No : 34
In the case of symmetric key encryption, the secret key that both the parties possess can be anything such as a _______.

Question No : 35
You are supposed to use hill cipher for encryption technique. You are provided with the following matrix,
Is the given matrix 'A', a valid key to be used for encryption?