Question

List and explain the characteristics of advanced symmetric block ciphers

Answer 1

the symmetry blocks cipher have many examples

Answer 2

Block cipher is an algorithm that operates on bits called block.

The characteristics of Advanced symmetric  block ciphers are -

1) Key dependent S-boxes - S-box performs substitution and depicts the relationship between key and cipher text.

2) Data dependent rotation - Data dependent rotation results in differences in the amount of rotation.

3) Variable plain text or cipher text block length

4) Operations on both plain and ciphered data