Multiple choice

Which of the following is/are correct about Electronic Codebook (ECB) in block ciphers?

  1. In ECB, the secret key is used to encrypt the plaintext block to form a ciphertext block.

  2. It is susceptible to a variety of brute-force attacks.

  3. It allows data to be encrypted in units smaller than the block size.

  4. It adds a feedback mechanism to the encryption scheme.

  5. Both (1) and (2)
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

These are the correct statements about ECB in block cipher.

Keep practicing — related questions