A Key Selected S-Box Mechanism and Its Investigation in Modern Block Cipher Design

Table 2

The numbers of disjoint subkey bits involved in the propagation of a single nibble position through 3 and 4 rounds.

Position	Nibble
	3 rounds		4 rounds
	Ordinary mechanism	Key selected mechanism	Ordinary mechanism	Key selected mechanism
0	58	66	87	95
1	59	63	88	92
2	57	64	86	93
3	58	71	88	101
4	57	68	87	97
5	57	62	87	92
6	57	65	86	94
7	57	69	86	98