New Linear Cryptanalysis of Chinese Commercial Block Cipher Standard SM4

Table 2

Summary of attacks on SM4.

Rounds	Attack type	Data	Time	Memory	Source
13	Integral			—	[6]
16	Impossible differential				[18]
18	Rectangle				[3]
18	Boomerang				[3]
22	Multiple linear				[19]
23	Differential			—	[7]
23	Multidimensional linear				[9]
23	Linear				[9]
23	Linear				Section 4
24	Linear				Section 4