Research Article

Multiple Impossible Differential Attacks for ForkAES

Algorithm 1

Quicksort of plaintext-ciphertext pairs in impossible differential attack (IDQUICKSORT).
Inputs: Array ; Value function ;
Outputs: Sorted array indexed the value of t byte
(1)IDQUICKSORT
(2)ifthen
(3)    IDPARTTION
(4)   IDQUICKSORT
(5)   IDQUICKSORT
(6)end if
(7)IDPARTTION
(8)
(9)
(10)for to do
(11)  ifthen
(12)     
(13)     exchange
(14)  end if
(15)end for
(16)return