DES in CSE467
Simplified DES
- 12-bit keys
- 16-bit data
- Smaller S-boxes and P-boxes
- Precompute the subkeys and store them in memory
- Skip the initial and final permutations
- Your output will be R16L16
You will…
- Read a 16-bit data value from memory
- Compute 16 rounds
- Display your encrypted result on the LCD