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Question 12, Let f(x), g(x) and h(x) be three hash functions that each map binary strings of length 2n to binary strings of length n. Suppose that h(x) = f(g(x)||g(x)) %3D In an assignment, you proved that if both f(x)and g(x) were collision resistant then h(x) must also be collision resistant. Assume now that h(x) is collision resistant. Select all of the following statements that are correct in this situation. (Select one statement for f(x) and one for g(x)). f(x) must be collision resistant Of(x) cannot be collision resistant Owe cannot say if f(x) is or is not collision resistant Og(x) must be collision resistant Og(x) cannot be collision resistant Owe cannot say if g(x) is or is not collision resistant

Question 12, Let f(x), g(x) and h(x) be three hash functions that each map binary strings of length 2n to binary strings of length n. Suppose that h(x) = f(g(x)||g(x)) %3D In an assignment, you proved that if both f(x)and g(x) were collision resistant then h(x) must also be collision resistant. Assume now that h(x) is collision resistant. Select all of the following statements that are correct in this situation. (Select one statement for f(x) and one for g(x)). f(x) must be collision resistant Of(x) cannot be collision resistant Owe cannot say if f(x) is or is not collision resistant Og(x) must be collision resistant Og(x) cannot be collision resistant Owe cannot say if g(x) is or is not collision resistant

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Question 12, Let f(x), g(x) and h(x) be three hash functions that each map binary strings of length 2n to binary strings of length n. Suppose that h(a) = f(g(x)||g(x)) %3D In an assignment, you proved that if both f(x)and g(x) were collision resistant then h(x) must also be collision resistant. Assume now that h(x) is collision resistant. Select all of the following statements that are correct in this situation. (Select one statement for f(x) and one for g(x)). Of(x) must be collision resistant Of(x) cannot be collision resistant Owe cannot say if f(x) is or is not collision resistant Og(x) must be collision resistant Og(x) cannot be collision resistant Owe cannot say if g(x) is or is not collision resistant
Transcribed Image Text:Question 12, Let f(x), g(x) and h(x) be three hash functions that each map binary strings of length 2n to binary strings of length n. Suppose that h(a) = f(g(x)||g(x)) %3D In an assignment, you proved that if both f(x)and g(x) were collision resistant then h(x) must also be collision resistant. Assume now that h(x) is collision resistant. Select all of the following statements that are correct in this situation. (Select one statement for f(x) and one for g(x)). Of(x) must be collision resistant Of(x) cannot be collision resistant Owe cannot say if f(x) is or is not collision resistant Og(x) must be collision resistant Og(x) cannot be collision resistant Owe cannot say if g(x) is or is not collision resistant
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