Figure 2

A secret of length 12 can be divided into: (a) 1 block divided into two parts and executed in two rounds; (b) 2 blocks; (c) 3 blocks; (d) 6 blocks with two rounds for each block.

A secret of length 12 can be divided into: (a) 1 block divided into two parts and executed in two rounds; (b) 2 blocks; (c) 3 blocks; (d) 6 blocks with two rounds for each block.