Research Article

Unveiling the Neutral Difference and Its Automated Search

Table 2

Key recovery attacks on round-reduced LEA.

CipherRoundTypeData (CP)TimeRef.

LEA19214/28DC[16]
18/28DL[6]
18/28DL (ND)This work

LEA25615/32DC[16]
18/32DL[6]
18/32DL (ND)This work

DL = differential-linear distinguishers, DL (ND) = DL distinguishers combined with neutral difference technique, DC = differential cryptanalysis, CP = chosen-plaintexts.