Improve Neural Distinguishers of SIMON and SPECK

Table 6

Comparison of SIMON using different data format.

Cipher	Data format	k	Rounds	Input difference	Accuracy (%)
SIMON32/64	SCP	—	9		59.07
	MOD	4	9		62.27
	MOD	32	9		82.27
	MOD	32	10		61.09
SIMON48/96	SCP	—	10		57.89
	MOD	4	10		61.15
	MOD	48	10		81.40
	MOD	48	11		61.43
SIMON64/128	SCP	—	11		59.72
	MOD	4	11		63.53
	MOD	64	11		73.79
	MOD	64	12		69.57

SCP: single ciphertext pair; MOD: multiple output differences.