Which is claimed to be harmless-decrypt further messages

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Question

In P1 all messages are encrypted except rea key and its response, which is claimed to be harmless since the public key sent in the response cannot be used to decrypt further messages. To what extent do you agree with that claim? Are there any other possible attacks a malicious third party can make if it is able to intercept this unencrypted reg key message and/or its response? If yes, give an example of such attacks and briefly explain one way to protect against it. If not, briefly explain why.

Reference no: EM133397639

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