Wireless Communications and Mobile Computing / 2018 / Article / Tab 8

Research Article

A New Type of Countermeasure against DPA in Multi-Sbox of Block Cipher

Table 8

The success rate of recovering key corresponding Sbox.

Sequence of speculating SboxGuessing the value of keySuccess rate

1/81/64(1/2)9
1/8(1/64)2(1/2)15
1/8(1/64)3(1/2)21
1/8(1/64)4(1/2)27
1/8(1/64)5(1/2)33
1/8(1/64)6(1/2)39
1/8(1/64)7(1/2)45
1/8(1/64)8(1/2)51