Research Article

Improve Neural Distinguishers of SIMON and SPECK

Table 7

Comparison of SPECK using different data format.

CipherData formatRoundsInput differenceAccuracy (%)Source

SPECK32/64SCP761.6[7]
MCP770.741[12]
MOD2788.87Section 4
SCP851.4[7]
MOD2856.49Section 4

SIMON48/96MCP53[15]
MOD4763.43Section 4

SIMON64/128MOD5863.20Section 4

SCP: single ciphertext pair; MCP: multiple ciphertext pairs; MOD: multiple output differences. 1The highest accuracy of 7-round SPECK32/64 in [12]. 2 = 32. 3Chen et al. used 5-round neural distinguisher to attack SPECK48/x, but the accuracy was not presented in [15]. 4 = 48. 5 = 64.