Question: (ii) Consider the keyed function F:0,12k {0, 1}2n {0,1} such that FK||K,(21||22) = FK (11) FK2 (22) for all 21, 22 {0,1} and K1, K2

(ii) Consider the keyed function F":0,12k {0, 1}2n {0,1}" such that

(ii) Consider the keyed function F":0,12k {0, 1}2n {0,1}" such that FK||K,(21||22) = FK (11) FK2 (22) for all 21, 22 {0,1}" and K1, K2 {0,1}k. Is F" a PRF

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