Please provide the answer as fast as you can.
Suppose Alice and Bob have RSA public keys in a file on a server. They communicate regularly using authenticated, confidential messages. Eve wants to read the messages but is unable to crack the RSA private keys of Alice and Bob. However, she can break into the server and alter the file containing Alice's and Bob's public keys. (a) How should Eve alter that file so that she can read confidential messages sent between Alice and Bob, and forge messages from either? (3 points)
Non-keyed Message Digest Assures One-wayness. Why one-wayness is important? (2 points)
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What is strong collision resistance and weak collision resistance? (2 points)
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