Question: 5. Diffie-Hellman(3-4) Consider a Diffie-Hellman key exchange with p= 19 and g = 10. (a) Alice picks r = 7, and Bob picks y =

5. Diffie-Hellman(3-4) Consider a Diffie-Hellman key exchange with p= 19 and

5. Diffie-Hellman(3-4) Consider a Diffie-Hellman key exchange with p= 19 and g = 10. (a) Alice picks r = 7, and Bob picks y = 11. What is the shared key K resulting from the exchange? (b) How would you modify the exchanged messages in DH to prevent its main weakness? Clearly state all your assumptions including any additional cryptographic algorithm or material needed) and the notation you used

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