For an m-bit value, the adversary would have to try ____________ values to generates a given hash value h.

For an m-bit value, the adversary would have to try ____________ value

1.	For an m-bit value, the adversary would have to try ____________ values to generates a given hash value h.
A.	2<sup>m</sup>
B.	2<sup>(m-1)</sup>
C.	2<sup>(m/2)</sup>
D.	(2<sup>m</sup>) 1
Answer» C. 2<sup>(m/2)</sup>