MCQOPTIONS
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MCQOPTIONS
| 1. |
In AES, to make the s-box, we apply the transformationb _i = b_i XOR b_(i+4) XOR b(i+5) XOR b_(i+6) XOR b_(i+7) XOR c_i |
| A. | nWhat is c_i in this transformation? |
| B. | c_i is the ith bit of byte c with value 0x63 |
| C. | c_i is the ith bit of byte c with value 0x25 |
| D. | c_i is the ith bit of byte c with value 0x8F |
| E. | c_i is the ith bit of byte c with value 0x8A |
| Answer» B. c_i is the ith bit of byte c with value 0x63 | |