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GATE | Gate IT 2007 | Question 17
Exponentiation is a heavily used operation in public key cryptography. Which of the following options is the tightest upper bound on the number of multiplications required to compute bn mod m,0≤b,n≤m ?
(A)
O(logn)
(B)
O(√n)
(C)
O(n/logn)
(D)
O(n)
Answer
Please comment below if you find anything wrong in the above post
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