CAST AES-C ASIC Implementation Results

The following are representative ASIC results for the AES-C core in ECB mode, excluding the optional Key Expander and memory. Results are optimized for speed, with equivalent gate count using the smallest NAND2 gate available in the technology.

STANDARD Version

ASIC Technology

Logic Area
(um2)

Number of eq. gates

Fmax
(MHz)
Throughput
(Gbps)

TSMC 90nm 
with no key expander

14,200

5K

500 1.45
TSMC 90nm 
with key expander
24,900 8.8K 500 1.45

FAST Version

ASIC Technology

Logic Area
(um2)

Number of eq. gates

Fmax
(MHz)
Throughput
(Gbps)

TSMC 90nm 
with no key expander

22,050

7.8K

500 5.82
TSMC 90nm 
with key expander
32,160 11.4 K 500 5.82

 

 

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