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A doubt in encryption
(lemmy.ml)
There’s a server, a client, and a hacker in a network. For encryption, the client and the server need to share their private keys. Wouldn’t the hacker be able to grab those during their transmission and decrypt further messages as they please?
Certifying Authority ensures secure connection establishment. If CA is corrupt, your system will work.
CAs are irrelevant to OPs question
A bit relevant, because even without sharing private keys Diffie-Hellman without prior knowledge will allow for a MitM attack.
But the answer is too short to make sense of without knowing that, I think