layout

SBOX Layouts

Four different implementations of SBOX layout were synthetized.

The circuit versions were generated from the aes_sbox.aag file by a custom tool.

Static Single-Rail Implementation

• standard single-rail static CMOS AES SBOX implementation
• Files:
  • standard cell map file
  • Magic source
  • extracted Magic netlist
  • extracted SPICE netlist

Static Dual-Rail Implementation

• standard dual-rail static CMOS AES SBOX implementation using library cells (AND2X1 and OR2X1) and automated routing without dual-rail ballancing
• Files:
  • standard cell map file
  • Magic source
  • extracted Magic netlist
  • extracted SPICE netlist

Static Dual-Rail Implementation with Alternating Spacer

• alternative dual-rail static CMOS AES SBOX implementation with alternating spacer using library cells (NAND2X1 and NOR2X1) and automated routing without dual-rail ballancing
• Files:
  • standard cell map file
  • Magic source
  • extracted Magic netlist
  • extracted SPICE netlist

Protected Dual-Rail Implementation

• dual-rail static CMOS AES SBOX implementation using custom protedted cells (PAND2X1 and POR2X1) and automated routing without dual-rail ballancing
• qrouter requires 0.9 initial density to finish routing
• Files:
  • standard cell map file
  • Magic source
  • extracted Magic netlist
  • extracted SPICE netlist

SecLib Dual-Rail Implementation

• dual-rail static CMOS AES SBOX implementation using (modified) SecLib method employing dynamic C-elements
• qrouter requires 0.75 initial density to finish routing
• Files:
  • standard cell map file
  • Magic source
  • extracted Magic netlist
  • extracted SPICE netlist

GDS2SVG Export

for FNAME in $( echo "PAND2X1 POR2X1" )
do
  python drawGDSCell.py -g ${FNAME}.gds -s ${FNAME}.svg
  inkscape -g --batch-process --actions="select:${FNAME}; ObjectFlipVertically; ObjectFlipHorizontally; export-filename:${FNAME}.pdf; export-id:${FNAME}; export-do; FileClose" ${FNAME}.svg
done