Here, we have a set of multiplechoice questions and answers (quiz) on Cryptography Techniques of Block Cipher.
Title  

What is the block size of plain text in SHA 512 algorithm?What is the block size of plain text in SHA 512 algorithm?
The answer is:
B. 1024 bits


All the belowstated processes are performed in the AES (Advanced Encryption Standard) Algorithm. Which of the following process(s) are not performed in the final round of the AES?All the belowstated processes are performed in the AES (Advanced Encryption Standard) Algorithm. Which of the following process(s) are not performed in the final round of the AES?
The answer is:
B. iii.


What does IDEA stand for in the world of cryptography? or The IDEA word in the IDEA algorithm is the abbreviation for which of the following?What does IDEA stand for in the world of cryptography? or The IDEA word in the IDEA algorithm is the abbreviation for which of the following?
The answer is:
C. International Data Encryption Algorithm


How many subkeys in the total are used by the IDEA for encrypting the plain text into ciphertext?How many subkeys in the total are used by the IDEA for encrypting the plain text into ciphertext?
The answer is:
C. 52 sub keys


"The number of rounds in the AES algorithm depends upon the key size being used." Which among the following shows a correct relation between the size of the key used and the number of rounds performed in the AES algorithm?"The number of rounds in the AES algorithm depends upon the key size being used." Which among the following shows a correct relation between the size of the key used and the number of rounds performed in the AES algorithm?
The answer is:
D. All of the above


Which of the following properties are the characteristic properties of a block cipher technique which differs from stream cipher?Which of the following properties are the characteristic properties of a block cipher technique which differs from stream cipher?
The answer is:
C. Both a. and b.


Encryption algorithms are divided into two categories based on the ______Encryption algorithms are divided into two categories based on the ______.
The answer is:
B. Input type


Cipher block chaining or CBC is an advancement made on _____Cipher block chaining or CBC is an advancement made on _____.
The answer is:
A. Electronic Code Book


A secure block cipher is suitable for the encryption, 

Cipher Feedback Mode is given as feedback to the ____ of encryption with some new specificationsCipher Feedback Mode is given as feedback to the ____ of encryption with some new specifications.
The answer is:
A. Next block


In cryptography, a product cipher combines two or more transformations,In cryptography, a product cipher combines two or more transformations,
The answer is:
A. True

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