Improved Biclique Cryptanalysis of the Lightweight Block Cipher Piccolo

Table 1

Summary of previous results of different method on Piccolo.

Piccolo-80 rounds	Piccolo-128 rounds	Method	Reference
7	7	Differential	Reference [14]
8	8	Linear	Reference [14]
9	9	Boomerang	Reference [14]
9	9	Impossible differential	Reference [14]
14	21	MITM	Reference [17]
19	23	MITM expectation	Reference [14]
25	28	Biclique cryptanalysis	Reference [2]
25	31	Biclique cryptanalysis	This paper