Figure 2. Top-level Randaes chip architecture. Figure 3. Random-number generators subcell architecture; analog part with full-custom design (a) and digital part with standard-cell design (b). Figure 4. Decorrelator top architecture. Figure 5. Main flow of the Rijndael algorithm. Figure 6. Fully parallel Rijndael round. Figure 7. Top level view of VHDL code. To mix column Figure 8. Four-in-one entity.