Question: Modify the authentication protocol in Figure 9.12 so that it uses a hash function instead of symmetric key encryption. The resulting protocol must be secure.

Modify the authentication protocol in Figure 9.12 so that it uses a hash function instead of symmetric key encryption. The resulting protocol must be secure.

Modify the authentication protocol in Figure 9.12 so that it uses a

I'm Alice", RA RB, E("Bob",RA,KAB E("Alice",RB,KAB) Alice Bob

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