The steps

• Step1: Generate 16 subkeys, each 48 bits long

  • You will generate 12-bit subkeys in software
    • Download them to memory

• Step 2: Initial data permutation

  • You will skip this step

• Step 3: Perform 16 rounds of DES

  • You will perform 16 rounds on 16-bit data

• Step 4: Final data permutation

  • You will skip this step

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