Question: The DiffieHellman key exchange protocol is vulnerable to a manin-the-middle attack as shown in Figure 8.7. Outline how DiffieHellman can be extended to protect against

The Diffie–Hellman key exchange protocol is vulnerable to a “manin-the-middle” attack as shown in Figure 8.7. Outline how Diffie–Hellman can be extended to protect against this possibility.

Figure 8.7)

Alice g mod p gf mod p Mallory g mod p go

Alice g mod p gf mod p Mallory g mod p go mod p Bob

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