Twofish's Performance on Smart Cards
Results for Twofish on a 6805 CPU, with several different space-time tradeoff options:
| RAM, ROM, or EEPROM for Key | Working RAM | Code and Table Size | Clocks per Block | Time per Block @ 4MHz |
|---|---|---|---|---|
| 24 | 36 | 2200 | 26500 | 6.6 msec |
| 24 | 36 | 2150 | 32900 | 8.2 msec |
| 24 | 36 | 2000 | 35000 | 8.7 msec |
| 24 | 36 | 1750 | 37100 | 9.3 msec |
| 184 | 36 | 1900 | 15300 | 3.8 msec |
| 184 | 36 | 1700 | 18100 | 4.5 msec |
| 184 | 36 | 1450 | 19200 | 4.8 msec |
| 1208 | 36 | 1300 | 12700 | 3.2 msec |
| 1208 | 36 | 1100 | 15500 | 3.9 msec |
| 1208 | 36 | 850 | 16600 | 4.2 msec |
| 3256 | 36 | 1000 | 11900 | 3.0 msec |
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