Homework Answers
Answer)
The medium used is the Internet, and the secret key KAlice-Bob is
shared on the unsecured medium Internet. Since Alice is sending the
secret key to Bob over the unsecured medium thus the security flaw
would be that an attacker or hacker on the medium will be able to
intercept the secure key. Thus when Alice and Bob will actually use
this security key, it will not be secure since some attacker
already has it and knows it. This is the vulnerability here.
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