Improved Biclique Cryptanalysis of the Lightweight Block Cipher Piccolo

Table 3

Key schedule of Piccolo.

Piccolo-80			Piccolo-128
Round i	Round key	Master key	Round i	Round key	Master key
Initial			Initial
0	()	()	0	()	()
1	()	()	1	()	()
2	()	()	2	()	()
3	()	()	3	()	()
4	()	()	4	()	()
5	()	()	5	()	()
6	()	()	6	()	()
18	()	()	24	()	()
19	()	()	25	()	()
20	()	()	26	()	()
21	()	()	27	()	()
22	()	()	28	()	()
23	()	()	29	()	()
24	()	()	30	()	()
Final			Final