Multiple Impossible Differential Attacks for ForkAES

Table 1

The comparison of attacks on ForkAES.

Attack type	Rounds	Time		Data	Memory	Reference
		Encs.	MAs
Reconstruction queries
Rectangle diff.	ForkAES- -4-4					[5]
Impossible diff.	ForkAES- -4-4					[5]
Yoyo	ForkAES- -3-3					[5]
Imp.-diff. Yoyo	ForkAES- -4-4					[5]
Impossible diff^mk	ForkAES- -5-4					This paper
Truncated diff.	ForkAES- -5-5					[6]
Encryption queries
Rectangle	ForkAES- -4-4					[5]
Impossible diff.	ForkAES- -4-4					[5]
Impossible diff ^mk	ForkAES- -5-4					This paper

mk: recover the master key; MAs: memory accesses.