The S-Box is used to provide confusion, as it is dependent on the unknown key.

Related MCQs

• In Playfair cipher, at first, a key table is produced. That key table is a 5 by 5 grid of alphabets which operates as the key to encrypt the plaintext.
• In an RSA system the public key of a given user is e = 31, n = 3599. What is the private key of this user?
• Compute private key (d, p, q) given public key (e=23, n=233 ´ 241=56,153).
• Asymmetric key cryptography is used for all of the following except_______.
• Conventional cryptography is also known as _____________ or symmetric-key encryption.
• ______________ employs a text string as a key that is implemented to do a series of shifts on the plain-text.
• What is the expanded key size of AES-192?
• In AES the 4×4 bytes matrix key is transformed into a keys of size __________.
• There is an addition of round key before the start of the AES round algorithms.
• What is the key size in the S-AES algorithm?