Question: Problem 6 [Key Exchange) (10 Points) Alice chooses a1, a, randomly from {0, 1} and sends a = aj az to Bob. Bob chooses b,

Problem 6 [Key Exchange) (10 Points) Alice chooses a1, a, randomly

Problem 6 [Key Exchange) (10 Points) Alice chooses a1, a, randomly from {0, 1}" and sends a = aj az to Bob. Bob chooses b, b2 randomly from {0,1} and sends b b1 b2 to Alice. Alice computes c=bai and sends it to Bob. Alice outputs a2 and bob outputs cob Show that Alice and Bob output the same key. Is this scheme secure? If not, provide a concrete attack

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