The KHAZAD Legacy-Level Block Cipher
Paulo S.L.M, Vincent Rijmen · 2001
Khazad is a 64-bit (legacy-level) block cipher that accepts a 128-bit key. The cipher is a uniform substitution-permutation network whose inverse only differs from the forward operation in the key schedule. The overall cipher design follows the Wide Trail strategy, favours component reuse, and permits a wide variety of implementation tradeoffs.