Unit 2: Symmetric Key Method- Even Roll Nos

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Across
  1. 5. Which AES transformation method or routine performs permutation on a state matrix?
  2. 6. ____ cipher combines substitution, permutation and other components of modern block cipher method.
  3. 8. ____ hides the relationship between the key and the ciphertext.
  4. 9. Which algorithm uses either 2 keys or 3 keys to perform encryption or decryption?
Down
  1. 1. ____ method in AES round structure is missing in the last round.
  2. 2. one of the non-Feistel symmetric algorithm.
  3. 3. Which data unit in AES refers to a group of 128 bits?
  4. 4. Which method is used in pre-round stage of AES algorithm?
  5. 5. Who introduced the concept of Product cipher?
  6. 7. Which algorithm uses S-Box with 6 bit input and 4 bit output.