If a key is 43 bits long, how much longer will it take to crack it by exhaustive search if it is extended to 45 bits?
A. (45-43)*2^2=8
B. 2^2 = 4
C. 1^2=1
D. 2^1=2
B. 2^2 = 4
Computer Science & Information Technology
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Computer Science & Information Technology