Find the inverse of .

Question

Find the inverse of  .

Quizplus · Accepted Answer

To find the inverse of this hexadecimal number, we need to apply XOR operation with the key TBX8673_11, which is 10 characters long. Therefore, we need to break the given number into blocks of 10 characters each and apply XOR operation with the key.

11ec19db_84be_2a54_9dbe_d3cff81f6041_TBX8673_11
= 11ec19db_84be_2a54_9dbe_d3cff81f60 XOR 41TBX8673_11

Now, we convert 41TBX8673_11 into hexadecimal format, which is equivalent to:

34 31 54 42 58 38 36 37 33 5F 31 31

We can now apply XOR operation between the two blocks:

11ec19db_84be_2a54_9dbe_d3cff81f60 XOR 34315442583637335F3131
= 22dd04e3_cf06_6b06_0cab_ea0c090e5542

Therefore, the inverted hexadecimal number is:

22dd04e3_cf06_6b06_0cab_ea0c090e5542_TBX8673_11

which is equivalent to choice D: 11ec19db_84be_5168_9dbe_f9f5c255b1e4_TBX8673_11.

Find the Inverse of