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

Table 5

The minimum number of active S-boxes of -round differential characteristics under the CDD table, where ().

#Rounds	#S-boxes
1	0
2	1
3	2
4	5
5	7
6	10
7	12
8	14
9	15
10	16
11	19
12	21
13	24
14	26
15	28
16	29
17	30
18	33
19	35
20	38