Question: Computer Science Consider the following three-message mutual authentication and key establishment protocol, which is based on a shared symmetric key K_AB. For each of the

Computer Science

Computer Science Consider the following three-message mutual authentication and key establishment protocol,

Consider the following three-message mutual authentication and key establishment protocol, which is based on a shared symmetric key K_AB. For each of the following cases, briefly explain whether or not the resulting protocol provides an effective means for secure mutual authentication and a secure session key K. (a) Message 1: E("Alice", K, R_A, K_AB) Message 2: R_A, E(R_B, K_AB)

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