Unveiling the Neutral Difference and Its Automated Search

Table 1

Comparison of our distinguishers with previous ones.

Cipher	Weak keys	Type	Round	Prob./Cor.	Ref.
SPECK32	Full	Linear	9		[11]
		DL	9		[12]
		Differential	10		[13]
		Boomerang	10		[14]
		DL	10		[12]
		DL (ND)	10		[9]
		DL	11		[9]
		DL (ND)	11		[9]
		DL (ND)	11		This work
		DL (ND)	11		This work
LEA	Full	Boomerang	16		[15]
		DL (ND)	16		[6]
		DL	17		[6]
		DL (ND)	17		This work

DL = differential-linear distinguishers, DL (ND) = DL distinguishers combined with neutral difference technique, DC = differential characteristic, LC = linear characteristic.