Question: Select if H ( x ) = x H(x)=x is: Choice 1 of 4:One way Choice 2 of 4:Collision resistant Choice 3 of 4:Both Choice

Select if H ( x ) = x H(x)=x is: Choice 1 of 4:One way Choice 2 of 4:Collision resistant Choice 3 of 4:Both Choice 4 of 4:None Grading comment: Select if H ( x ) = x H(x)=x mod 2 2 is: Choice 1 of 4:One way Choice 2 of 4:Collision resistant Choice 3 of 4:Both Choice 4 of 4:None Grading comment: Let E k E k be an ideally secure block cipher with a known and published key k k. Select if H ( x ) = E k ( x ) H(x)=E k (x) is: Choice 1 of 4:One way Choice 2 of 4:Collision resistant Choice 3 of 4:Both Choice 4 of 4:None Grading comment: Select if H ( x ) = 0 H(x)=0 is: Choice 1 of 4:One way Choice 2 of 4:Collision resistant Choice 3 of 4:Both Choice 4 of 4:None

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