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{"ops":[{"attributes":{"bold":true},"insert":"Refer to\u00a0"},{"insert":"https:\/\/en.wikipedia.org\/wiki\/DES_supplementary_material "},{"attributes":{"bold":true},"insert":"for the s-boxes in DES\u00a0to answer\u00a0the following questions:"},{"insert":"\nWhat is the output of the first round of the DES algorithm when the plaintext and the key are both all\u00a0"},{"attributes":{"bold":true},"insert":"zeros"},{"insert":"?\u00a0(List\u00a0transition\u00a0steps to justify your answer)\na. What\u2019s the 64-bit value of IP(x)?\nb.\u00a0What\u2019s the 48-bit subkey k1 of after PC-1?\nc.\u00a0What\u2019s the 48-bit value of E(R0) after expansion?\nd.\u00a0What\u2019s the 48-bit value after E(R0) XOR k1?\ne.\u00a0What\u2019s the\u00a032-bit value after S-boxes operations?\nf.\u00a0What\u2019s the 64-bit (L1, R1) value after permutation P?\n"}]}
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